Hi,
Turbomole 7.4 uses libXC version 4.3.0. To find out which functional has which number, I checked out this version from the gitlab repo:
https://gitlab.com/libxc/libxc/tree/4.3.0and then did a grep on "define XC_" for all routines and sorted that according the numbers. Here is the result:
XC_LDA_X 1 /* Exchange */
XC_LDA_C_WIGNER 2 /* Wigner parametrization */
XC_LDA_C_RPA 3 /* Random Phase Approximation */
XC_LDA_C_HL 4 /* Hedin & Lundqvist */
XC_LDA_C_GL 5 /* Gunnarson & Lundqvist */
XC_LDA_C_XALPHA 6 /* Slater Xalpha */
XC_LDA_C_VWN 7 /* Vosko, Wilk, & Nusair (5) */
XC_LDA_C_VWN_RPA 8 /* Vosko, Wilk, & Nusair (RPA) */
XC_LDA_C_PZ 9 /* Perdew & Zunger */
XC_LDA_C_PZ_MOD 10 /* Perdew & Zunger (Modified) */
XC_LDA_C_OB_PZ 11 /* Ortiz & Ballone (PZ) */
XC_LDA_C_PW 12 /* Perdew & Wang */
XC_LDA_C_PW_MOD 13 /* Perdew & Wang (Modified) */
XC_LDA_C_OB_PW 14 /* Ortiz & Ballone (PW) */
XC_LDA_C_2D_AMGB 15 /* Attaccalite et al */
XC_LDA_C_2D_PRM 16 /* Pittalis, Rasanen & Marques correlation in 2D */
XC_LDA_C_vBH 17 /* von Barth & Hedin */
XC_LDA_C_1D_CSC 18 /* Casula, Sorella, and Senatore 1D correlation */
XC_LDA_X_2D 19 /* Exchange in 2D */
XC_LDA_XC_TETER93 20 /* Teter 93 parametrization */
XC_LDA_X_1D 21 /* Exchange in 1D */
XC_LDA_C_ML1 22 /* Modified LSD (version 1) of Proynov and Salahub */
XC_LDA_C_ML2 23 /* Modified LSD (version 2) of Proynov and Salahub */
XC_LDA_C_GOMBAS 24 /* Gombas parametrization */
XC_LDA_C_PW_RPA 25 /* Perdew & Wang fit of the RPA */
XC_LDA_C_1D_LOOS 26 /* P-F Loos correlation LDA */
XC_LDA_C_RC04 27 /* Ragot-Cortona */
XC_LDA_C_VWN_1 28 /* Vosko, Wilk, & Nusair (1) */
XC_LDA_C_VWN_2 29 /* Vosko, Wilk, & Nusair (2) */
XC_LDA_C_VWN_3 30 /* Vosko, Wilk, & Nusair (3) */
XC_LDA_C_VWN_4 31 /* Vosko, Wilk, & Nusair (4) */
XC_GGA_X_GAM 32 /* GAM functional from Minnesota */
XC_GGA_C_GAM 33 /* GAM functional from Minnesota */
XC_GGA_X_HCTH_A 34 /* HCTH-A */
XC_GGA_X_EV93 35 /* Engel and Vosko */
XC_HYB_MGGA_X_DLDF 36 /* Dispersionless Density Functional */
XC_MGGA_C_DLDF 37 /* Dispersionless Density Functional */
XC_GGA_X_BCGP 38 /* Burke, Cancio, Gould, and Pittalis */
XC_GGA_C_BCGP 39 /* Burke, Cancio, Gould, and Pittalis */
XC_GGA_X_LAMBDA_OC2_N 40 /* lambda_OC2(N) version of PBE */
XC_GGA_X_B86_R 41 /* Revised Becke 86 Xalpha,beta,gamma (with mod. grad. correction) */
XC_MGGA_XC_ZLP 42 /* Zhao, Levy & Parr, Eq. (21) */
XC_LDA_XC_ZLP 43 /* Zhao, Levy & Parr, Eq. (20) */
XC_GGA_X_LAMBDA_CH_N 44 /* lambda_CH(N) version of PBE */
XC_GGA_X_LAMBDA_LO_N 45 /* lambda_LO(N) version of PBE */
XC_GGA_X_HJS_B88_V2 46 /* HJS screened exchange corrected B88 version */
XC_GGA_C_Q2D 47 /* Chiodo et al */
XC_GGA_X_Q2D 48 /* Chiodo et al */
XC_GGA_X_PBE_MOL 49 /* Del Campo, Gazquez, Trickey and Vela (PBE-like) */
XC_LDA_K_TF 50 /* Thomas-Fermi kinetic energy functional */
XC_LDA_K_LP 51 /* Lee and Parr Gaussian ansatz */
XC_GGA_K_TFVW 52 /* Thomas-Fermi plus von Weiszaecker correction */
XC_GGA_K_REVAPBEINT 53 /* interpolated version of REVAPBE */
XC_GGA_K_APBEINT 54 /* interpolated version of APBE */
XC_GGA_K_REVAPBE 55 /* revised APBE */
XC_GGA_X_AK13 56 /* Armiento & Kuemmel 2013 */
XC_GGA_K_MEYER 57 /* Meyer, Wang, and Young */
XC_GGA_X_LV_RPW86 58 /* Berland and Hyldgaard */
XC_GGA_X_PBE_TCA 59 /* PBE revised by Tognetti et al */
XC_GGA_X_PBEINT 60 /* PBE for hybrid interfaces */
XC_GGA_C_ZPBEINT 61 /* spin-dependent gradient correction to PBEint */
XC_GGA_C_PBEINT 62 /* PBE for hybrid interfaces */
XC_GGA_C_ZPBESOL 63 /* spin-dependent gradient correction to PBEsol */
XC_MGGA_XC_OTPSS_D 64 /* oTPSS_D functional of Goerigk and Grimme */
XC_GGA_XC_OPBE_D 65 /* oPBE_D functional of Goerigk and Grimme */
XC_GGA_XC_OPWLYP_D 66 /* oPWLYP-D functional of Goerigk and Grimme */
XC_GGA_XC_OBLYP_D 67 /* oBLYP-D functional of Goerigk and Grimme */
XC_GGA_X_VMT84_GE 68 /* VMT{8,4} with constraint satisfaction with mu = mu_GE */
XC_GGA_X_VMT84_PBE 69 /* VMT{8,4} with constraint satisfaction with mu = mu_PBE */
XC_GGA_X_VMT_GE 70 /* Vela, Medel, and Trickey with mu = mu_GE */
XC_GGA_X_VMT_PBE 71 /* Vela, Medel, and Trickey with mu = mu_PBE */
XC_MGGA_C_CS 72 /* Colle and Salvetti */
XC_MGGA_C_MN12_SX 73 /* MN12-SX correlation functional from Minnesota */
XC_MGGA_C_MN12_L 74 /* MN12-L correlation functional from Minnesota */
XC_MGGA_C_M11_L 75 /* M11-L correlation functional from Minnesota */
XC_MGGA_C_M11 76 /* M11 correlation functional from Minnesota */
XC_MGGA_C_M08_SO 77 /* M08-SO correlation functional from Minnesota */
XC_MGGA_C_M08_HX 78 /* M08-HX correlation functional from Minnesota */
XC_GGA_C_N12_SX 79 /* N12-SX functional from Minnesota */
XC_GGA_C_N12 80 /* N12 functional from Minnesota */
XC_HYB_GGA_X_N12_SX 81 /* N12-SX functional from Minnesota */
XC_GGA_X_N12 82 /* N12 functional from Minnesota */
XC_GGA_C_REGTPSS 83 /* Regularized TPSS correlation (ex-VPBE) */
XC_GGA_C_OP_XALPHA 84 /* one-parameter progressive functional (XALPHA version) */
XC_GGA_C_OP_G96 85 /* one-parameter progressive functional (G96 version) */
XC_GGA_C_OP_PBE 86 /* one-parameter progressive functional (PBE version) */
XC_GGA_C_OP_B88 87 /* one-parameter progressive functional (B88 version) */
XC_GGA_C_FT97 88 /* Filatov & Thiel correlation */
XC_GGA_C_SPBE 89 /* PBE correlation to be used with the SSB exchange */
XC_GGA_X_SSB_SW 90 /* Swart, Sola and Bickelhaupt correction to PBE */
XC_GGA_X_SSB 91 /* Swart, Sola and Bickelhaupt */
XC_GGA_X_SSB_D 92 /* Swart, Sola and Bickelhaupt dispersion */
XC_GGA_XC_HCTH_407P 93 /* HCTH/407+ */
XC_GGA_XC_HCTH_P76 94 /* HCTH p=7/6 */
XC_GGA_XC_HCTH_P14 95 /* HCTH p=1/4 */
XC_GGA_XC_B97_GGA1 96 /* Becke 97 GGA-1 */
XC_GGA_C_HCTH_A 97 /* HCTH-A */
XC_GGA_X_BPCCAC 98 /* BPCCAC (GRAC for the energy) */
XC_GGA_C_REVTCA 99 /* Tognetti, Cortona, Adamo (revised) */
XC_GGA_C_TCA 100 /* Tognetti, Cortona, Adamo */
XC_GGA_X_PBE 101 /* Perdew, Burke & Ernzerhof exchange */
XC_GGA_X_PBE_R 102 /* Perdew, Burke & Ernzerhof exchange (revised) */
XC_GGA_X_B86 103 /* Becke 86 Xalpha,beta,gamma */
XC_GGA_X_HERMAN 104 /* Herman et al original GGA */
XC_GGA_X_B86_MGC 105 /* Becke 86 Xalpha,beta,gamma (with mod. grad. correction) */
XC_GGA_X_B88 106 /* Becke 88 */
XC_GGA_X_G96 107 /* Gill 96 */
XC_GGA_X_PW86 108 /* Perdew & Wang 86 */
XC_GGA_X_PW91 109 /* Perdew & Wang 91 */
XC_GGA_X_OPTX 110 /* Handy & Cohen OPTX 01 */
XC_GGA_X_DK87_R1 111 /* dePristo & Kress 87 (version R1) */
XC_GGA_X_DK87_R2 112 /* dePristo & Kress 87 (version R2) */
XC_GGA_X_LG93 113 /* Lacks & Gordon 93 */
XC_GGA_X_FT97_A 114 /* Filatov & Thiel 97 (version A) */
XC_GGA_X_FT97_B 115 /* Filatov & Thiel 97 (version B) */
XC_GGA_X_PBE_SOL 116 /* Perdew, Burke & Ernzerhof exchange (solids) */
XC_GGA_X_RPBE 117 /* Hammer, Hansen & Norskov (PBE-like) */
XC_GGA_X_WC 118 /* Wu & Cohen */
XC_GGA_X_MPW91 119 /* Modified form of PW91 by Adamo & Barone */
XC_GGA_X_AM05 120 /* Armiento & Mattsson 05 exchange */
XC_GGA_X_PBEA 121 /* Madsen (PBE-like) */
XC_GGA_X_MPBE 122 /* Adamo & Barone modification to PBE */
XC_GGA_X_XPBE 123 /* xPBE reparametrization by Xu & Goddard */
XC_GGA_X_2D_B86_MGC 124 /* Becke 86 MGC for 2D systems */
XC_GGA_X_BAYESIAN 125 /* Bayesian best fit for the enhancement factor */
XC_GGA_X_PBE_JSJR 126 /* JSJR reparametrization by Pedroza, Silva & Capelle */
XC_GGA_X_2D_B88 127 /* Becke 88 in 2D */
XC_GGA_X_2D_B86 128 /* Becke 86 Xalpha,beta,gamma */
XC_GGA_X_2D_PBE 129 /* Perdew, Burke & Ernzerhof exchange in 2D */
XC_GGA_C_PBE 130 /* Perdew, Burke & Ernzerhof correlation */
XC_GGA_C_LYP 131 /* Lee, Yang & Parr */
XC_GGA_C_P86 132 /* Perdew 86 */
XC_GGA_C_PBE_SOL 133 /* Perdew, Burke & Ernzerhof correlation SOL */
XC_GGA_C_PW91 134 /* Perdew & Wang 91 */
XC_GGA_C_AM05 135 /* Armiento & Mattsson 05 correlation */
XC_GGA_C_XPBE 136 /* xPBE reparametrization by Xu & Goddard */
XC_GGA_C_LM 137 /* Langreth and Mehl correlation */
XC_GGA_C_PBE_JRGX 138 /* JRGX reparametrization by Pedroza, Silva & Capelle */
XC_GGA_X_OPTB88_VDW 139 /* Becke 88 reoptimized to be used with vdW functional of Dion et al */
XC_GGA_X_PBEK1_VDW 140 /* PBE reparametrization for vdW */
XC_GGA_X_OPTPBE_VDW 141 /* PBE reparametrization for vdW */
XC_GGA_X_RGE2 142 /* Regularized PBE */
XC_GGA_C_RGE2 143 /* Regularized PBE */
XC_GGA_X_RPW86 144 /* refitted Perdew & Wang 86 */
XC_GGA_X_KT1 145 /* Exchange part of Keal and Tozer version 1 */
XC_GGA_XC_KT2 146 /* Keal and Tozer version 2 */
XC_GGA_C_WL 147 /* Wilson & Levy */
XC_GGA_C_WI 148 /* Wilson & Ivanov */
XC_GGA_X_MB88 149 /* Modified Becke 88 for proton transfer */
XC_GGA_X_SOGGA 150 /* Second-order generalized gradient approximation */
XC_GGA_X_SOGGA11 151 /* Second-order generalized gradient approximation 2011 */
XC_GGA_C_SOGGA11 152 /* Second-order generalized gradient approximation 2011 */
XC_GGA_C_WI0 153 /* Wilson & Ivanov initial version */
XC_GGA_XC_TH1 154 /* Tozer and Handy v. 1 */
XC_GGA_XC_TH2 155 /* Tozer and Handy v. 2 */
XC_GGA_XC_TH3 156 /* Tozer and Handy v. 3 */
XC_GGA_XC_TH4 157 /* Tozer and Handy v. 4 */
XC_GGA_X_C09X 158 /* C09x to be used with the VdW of Rutgers-Chalmers */
XC_GGA_C_SOGGA11_X 159 /* To be used with HYB_GGA_X_SOGGA11_X */
XC_GGA_X_LB 160 /* van Leeuwen & Baerends */
XC_GGA_XC_HCTH_93 161 /* HCTH functional fitted to 93 molecules */
XC_GGA_XC_HCTH_120 162 /* HCTH functional fitted to 120 molecules */
XC_GGA_XC_HCTH_147 163 /* HCTH functional fitted to 147 molecules */
XC_GGA_XC_HCTH_407 164 /* HCTH functional fitted to 407 molecules */
XC_GGA_XC_EDF1 165 /* Empirical functionals from Adamson, Gill, and Pople */
XC_GGA_XC_XLYP 166 /* XLYP functional */
XC_GGA_XC_KT1 167 /* Keal and Tozer version 1 */
XC_GGA_XC_B97_D 170 /* Grimme functional to be used with C6 vdW term */
XC_GGA_XC_PBE1W 173 /* Functionals fitted for water */
XC_GGA_XC_MPWLYP1W 174 /* Functionals fitted for water */
XC_GGA_XC_PBELYP1W 175 /* Functionals fitted for water */
XC_GGA_X_LBM 182 /* van Leeuwen & Baerends modified*/
XC_GGA_X_OL2 183 /* Exchange form based on Ou-Yang and Levy v.2 */
XC_GGA_X_APBE 184 /* mu fixed from the semiclassical neutral atom */
XC_GGA_K_APBE 185 /* mu fixed from the semiclassical neutral atom */
XC_GGA_C_APBE 186 /* mu fixed from the semiclassical neutral atom */
XC_GGA_K_TW1 187 /* Tran and Wesolowski set 1 (Table II) */
XC_GGA_K_TW2 188 /* Tran and Wesolowski set 2 (Table II) */
XC_GGA_K_TW3 189 /* Tran and Wesolowski set 3 (Table II) */
XC_GGA_K_TW4 190 /* Tran and Wesolowski set 4 (Table II) */
XC_GGA_X_HTBS 191 /* Haas, Tran, Blaha, and Schwarz */
XC_GGA_X_AIRY 192 /* Constantin et al based on the Airy gas */
XC_GGA_X_LAG 193 /* Local Airy Gas */
XC_GGA_XC_MOHLYP 194 /* Functional for organometallic chemistry */
XC_GGA_XC_MOHLYP2 195 /* Functional for barrier heights */
XC_GGA_XC_TH_FL 196 /* Tozer and Handy v. FL */
XC_GGA_XC_TH_FC 197 /* Tozer and Handy v. FC */
XC_GGA_XC_TH_FCFO 198 /* Tozer and Handy v. FCFO */
XC_GGA_XC_TH_FCO 199 /* Tozer and Handy v. FCO */
XC_GGA_C_OPTC 200 /* Optimized correlation functional of Cohen and Handy */
XC_MGGA_X_LTA 201 /* Local tau approximation of Ernzerhof & Scuseria */
XC_MGGA_X_TPSS 202 /* Tao, Perdew, Staroverov & Scuseria exchange */
XC_MGGA_X_M06_L 203 /* M06-L exchange functional from Minnesota */
XC_MGGA_X_GVT4 204 /* GVT4 from Van Voorhis and Scuseria */
XC_MGGA_X_TAU_HCTH 205 /* tau-HCTH from Boese and Handy */
XC_MGGA_X_BR89 206 /* Becke-Roussel 89 */
XC_MGGA_X_BJ06 207 /* Becke & Johnson correction to Becke-Roussel 89 */
XC_MGGA_X_TB09 208 /* Tran & Blaha correction to Becke & Johnson */
XC_MGGA_X_RPP09 209 /* Rasanen, Pittalis, and Proetto correction to Becke & Johnson */
XC_MGGA_X_2D_PRHG07 210 /* Pittalis, Rasanen, Helbig, Gross Exchange Functional */
XC_MGGA_X_2D_PRHG07_PRP10 211 /* PRGH07 with PRP10 correction */
XC_MGGA_X_REVTPSS 212 /* revised Tao, Perdew, Staroverov & Scuseria exchange */
XC_MGGA_X_PKZB 213 /* Perdew, Kurth, Zupan, and Blaha */
XC_MGGA_X_MS0 221 /* MS exchange of Sun, Xiao, and Ruzsinszky */
XC_MGGA_X_MS1 222 /* MS1 exchange of Sun, et al */
XC_MGGA_X_MS2 223 /* MS2 exchange of Sun, et al */
XC_HYB_MGGA_X_MS2H 224 /* MS2 hybrid exchange of Sun, et al */
XC_MGGA_X_M11_L 226 /* M11-L exchange functional from Minnesota */
XC_MGGA_X_MN12_L 227 /* MN12-L exchange functional from Minnesota */
XC_MGGA_XC_CC06 229 /* Cancio and Chou 2006 */
XC_MGGA_X_MK00 230 /* Exchange for accurate virtual orbital energies */
XC_MGGA_C_TPSS 231 /* Tao, Perdew, Staroverov & Scuseria correlation */
XC_MGGA_C_VSXC 232 /* VSxc from Van Voorhis and Scuseria (correlation part) */
XC_MGGA_C_M06_L 233 /* M06-L correlation functional from Minnesota */
XC_MGGA_C_M06_HF 234 /* M06-HF correlation functional from Minnesota */
XC_MGGA_C_M06 235 /* M06 correlation functional from Minnesota */
XC_MGGA_C_M06_2X 236 /* M06-2X correlation functional from Minnesota */
XC_MGGA_C_M05 237 /* M05 correlation functional from Minnesota */
XC_MGGA_C_M05_2X 238 /* M05-2X correlation functional from Minnesota */
XC_MGGA_C_PKZB 239 /* Perdew, Kurth, Zupan, and Blaha */
XC_MGGA_C_BC95 240 /* Becke correlation 95 */
XC_MGGA_C_REVTPSS 241 /* revised TPSS correlation */
XC_MGGA_XC_TPSSLYP1W 242 /* Functionals fitted for water */
XC_MGGA_X_MK00B 243 /* Exchange for accurate virtual orbital energies (v. B) */
XC_MGGA_X_BLOC 244 /* functional with balanced localization */
XC_MGGA_X_MODTPSS 245 /* Modified Tao, Perdew, Staroverov & Scuseria exchange */
XC_GGA_C_PBELOC 246 /* Semilocal dynamical correlation */
XC_MGGA_C_TPSSLOC 247 /* Semilocal dynamical correlation */
XC_HYB_MGGA_X_MN12_SX 248 /* MN12-SX hybrid exchange functional from Minnesota */
XC_MGGA_X_MBEEF 249 /* mBEEF exchange */
XC_MGGA_X_MBEEFVDW 250 /* mBEEF-vdW exchange */
XC_MGGA_XC_B97M_V 254 /* Mardirossian and Head-Gordon */
XC_GGA_XC_VV10 255 /* Vydrov and Van Voorhis */
XC_MGGA_X_MVS 257 /* MVS exchange of Sun, Perdew, and Ruzsinszky */
XC_GGA_C_PBEFE 258 /* PBE for formation energies */
XC_LDA_XC_KSDT 259 /* Karasiev et al. parametrization */
XC_MGGA_X_MN15_L 260 /* MN15-L exhange functional from Minnesota */
XC_MGGA_C_MN15_L 261 /* MN15-L correlation functional from Minnesota */
XC_GGA_C_OP_PW91 262 /* one-parameter progressive functional (PW91 version) */
XC_MGGA_X_SCAN 263 /* SCAN exchange of Sun, Ruzsinszky, and Perdew */
XC_HYB_MGGA_X_SCAN0 264 /* SCAN hybrid exchange */
XC_GGA_X_PBEFE 265 /* PBE for formation energies */
XC_HYB_GGA_XC_B97_1p 266 /* version of B97 by Cohen and Handy */
XC_MGGA_C_SCAN 267 /* SCAN correlation */
XC_HYB_MGGA_X_MN15 268 /* MN15 hybrid exchange functional from Minnesota */
XC_MGGA_C_MN15 269 /* MN15 correlation functional from Minnesota */
XC_GGA_X_CAP 270 /* Correct Asymptotic Potential */
XC_GGA_X_EB88 271 /* Non-empirical (excogitated) B88 functional of Becke and Elliott */
XC_GGA_C_PBE_MOL 272 /* Del Campo, Gazquez, Trickey and Vela (PBE-like) */
XC_HYB_GGA_XC_PBE_MOL0 273 /* PBEmol0 */
XC_HYB_GGA_XC_PBE_SOL0 274 /* PBEsol0 */
XC_HYB_GGA_XC_PBEB0 275 /* PBEbeta0 */
XC_HYB_GGA_XC_PBE_MOLB0 276 /* PBEmolbeta0 */
XC_GGA_K_ABSP3 277 /* gamma-TFvW form by Acharya et al [g = 1 - 1.513/N^0.35] */
XC_GGA_K_ABSP4 278 /* gamma-TFvW form by Acharya et al [g = l = 1/(1 + 1.332/N^(1/3))] */
XC_HYB_MGGA_X_BMK 279 /* Boese-Martin for kinetics */
XC_GGA_C_BMK 280 /* Boese-Martin for kinetics */
XC_GGA_C_TAU_HCTH 281 /* correlation part of tau-hcth */
XC_HYB_MGGA_X_TAU_HCTH 282 /* Hybrid version of tau-HCTH */
XC_GGA_C_HYB_TAU_HCTH 283 /* correlation part of hyb_tau-hcth */
XC_MGGA_X_B00 284 /* Becke 2000 */
XC_GGA_X_BEEFVDW 285 /* BEEF-vdW exchange */
XC_GGA_XC_BEEFVDW 286 /* BEEF-vdW exchange-correlation */
XC_LDA_C_CHACHIYO 287 /* Chachiyo simple 2 parameter correlation */
XC_LDA_C_LP96 289 /* Liu-Parr correlation */
XC_HYB_GGA_XC_PBE50 290 /* PBE0 with 50% exx */
XC_GGA_X_PBETRANS 291 /* Gradient-based interpolation between PBE and revPBE */
XC_MGGA_C_SCAN_RVV10 292 /* SCAN correlation + rVV10 correlation */
XC_MGGA_X_REVM06_L 293 /* revised M06-L exchange functional from Minnesota */
XC_MGGA_C_REVM06_L 294 /* Revised M06-L correlation functional from Minnesota */
XC_HYB_MGGA_X_M08_HX 295 /* M08-HX exchange functional from Minnesota */
XC_HYB_MGGA_X_M08_SO 296 /* M08-SO exchange functional from Minnesota */
XC_HYB_MGGA_X_M11 297 /* M11 hybrid exchange functional from Minnesota */
XC_GGA_X_CHACHIYO 298 /* Chachiyo exchange */
XC_HYB_GGA_XC_B3PW91 401 /* The original (ACM) hybrid of Becke */
XC_HYB_GGA_XC_B3LYP 402 /* The (in)famous B3LYP */
XC_HYB_GGA_XC_B3P86 403 /* Perdew 86 hybrid similar to B3PW91 */
XC_HYB_GGA_XC_O3LYP 404 /* hybrid using the optx functional */
XC_HYB_GGA_XC_MPW1K 405 /* mixture of mPW91 and PW91 optimized for kinetics */
XC_HYB_GGA_XC_PBEH 406 /* aka PBE0 or PBE1PBE */
XC_HYB_GGA_XC_B97 407 /* Becke 97 */
XC_HYB_GGA_XC_B97_1 408 /* Becke 97-1 */
XC_HYB_GGA_XC_B97_2 410 /* Becke 97-2 */
XC_HYB_GGA_XC_X3LYP 411 /* hybrid by Xu and Goddard */
XC_HYB_GGA_XC_B1WC 412 /* Becke 1-parameter mixture of WC and PBE */
XC_HYB_GGA_XC_B97_K 413 /* Boese-Martin for Kinetics */
XC_HYB_GGA_XC_B97_3 414 /* Becke 97-3 */
XC_HYB_GGA_XC_MPW3PW 415 /* mixture with the mPW functional */
XC_HYB_GGA_XC_B1LYP 416 /* Becke 1-parameter mixture of B88 and LYP */
XC_HYB_GGA_XC_B1PW91 417 /* Becke 1-parameter mixture of B88 and PW91 */
XC_HYB_GGA_XC_MPW1PW 418 /* Becke 1-parameter mixture of mPW91 and PW91 */
XC_HYB_GGA_XC_MPW3LYP 419 /* mixture of mPW and LYP */
XC_HYB_GGA_XC_SB98_1a 420 /* Schmider-Becke 98 parameterization 1a */
XC_HYB_GGA_XC_SB98_1b 421 /* Schmider-Becke 98 parameterization 1b */
XC_HYB_GGA_XC_SB98_1c 422 /* Schmider-Becke 98 parameterization 1c */
XC_HYB_GGA_XC_SB98_2a 423 /* Schmider-Becke 98 parameterization 2a */
XC_HYB_GGA_XC_SB98_2b 424 /* Schmider-Becke 98 parameterization 2b */
XC_HYB_GGA_XC_SB98_2c 425 /* Schmider-Becke 98 parameterization 2c */
XC_HYB_GGA_X_SOGGA11_X 426 /* Hybrid based on SOGGA11 form */
XC_HYB_GGA_XC_CAM_B3LYP 433 /* CAM version of B3LYP */
XC_HYB_GGA_XC_TUNED_CAM_B3LYP 434 /* CAM version of B3LYP tuned for excitations*/
XC_HYB_GGA_XC_BHANDH 435 /* Becke half-and-half */
XC_HYB_GGA_XC_BHANDHLYP 436 /* Becke half-and-half with B88 exchange */
XC_HYB_GGA_XC_MB3LYP_RC04 437 /* B3LYP with RC04 LDA */
XC_HYB_MGGA_X_M05 438 /* M05 hybrid exchange functional from Minnesota */
XC_HYB_MGGA_X_M05_2X 439 /* M05-2X hybrid exchange functional from Minnesota */
XC_HYB_MGGA_XC_B88B95 440 /* Mixture of B88 with BC95 (B1B95) */
XC_HYB_MGGA_XC_B86B95 441 /* Mixture of B86 with BC95 */
XC_HYB_MGGA_XC_PW86B95 442 /* Mixture of PW86 with BC95 */
XC_HYB_MGGA_XC_BB1K 443 /* Mixture of B88 with BC95 from Zhao and Truhlar */
XC_HYB_MGGA_X_M06_HF 444 /* M06-HF hybrid exchange functional from Minnesota */
XC_HYB_MGGA_XC_MPW1B95 445 /* Mixture of mPW91 with BC95 from Zhao and Truhlar */
XC_HYB_MGGA_XC_MPWB1K 446 /* Mixture of mPW91 with BC95 for kinetics */
XC_HYB_MGGA_XC_X1B95 447 /* Mixture of X with BC95 */
XC_HYB_MGGA_XC_XB1K 448 /* Mixture of X with BC95 for kinetics */
XC_HYB_MGGA_X_M06 449 /* M06 hybrid exchange functional from Minnesota */
XC_HYB_MGGA_X_M06_2X 450 /* M06-2X hybrid exchange functional from Minnesota */
XC_HYB_MGGA_XC_PW6B95 451 /* Mixture of PW91 with BC95 from Zhao and Truhlar */
XC_HYB_MGGA_XC_PWB6K 452 /* Mixture of PW91 with BC95 from Zhao and Truhlar for kinetics */
XC_HYB_GGA_XC_MPWLYP1M 453 /* MPW with 1 par. for metals/LYP */
XC_HYB_GGA_XC_REVB3LYP 454 /* Revised B3LYP */
XC_HYB_GGA_XC_PBE0_13 456 /* PBE0-1/3 */
XC_HYB_MGGA_XC_TPSSH 457 /* TPSS hybrid */
XC_HYB_MGGA_XC_REVTPSSH 458 /* revTPSS hybrid */
XC_HYB_GGA_XC_B3LYPs 459 /* B3LYP* functional */
XC_HYB_GGA_XC_WB97 463 /* Chai and Head-Gordon */
XC_HYB_GGA_XC_WB97X 464 /* Chai and Head-Gordon */
XC_HYB_GGA_XC_WB97X_V 466 /* Mardirossian and Head-Gordon */
XC_HYB_GGA_XC_LC_VV10 469 /* Vydrov and Van Voorhis */
XC_HYB_GGA_XC_CAMY_B3LYP 470 /* B3LYP with Yukawa screening */
XC_HYB_GGA_XC_WB97X_D 471 /* Chai and Head-Gordon */
XC_HYB_GGA_XC_HPBEINT 472 /* hPBEint */
XC_HYB_MGGA_X_MVSH 474 /* MVSh hybrid */
XC_HYB_GGA_XC_B3LYP5 475 /* B3LYP with VWN functional 5 instead of RPA */
XC_HYB_GGA_XC_EDF2 476 /* Empirical functional from Lin, George and Gill */
XC_HYB_GGA_XC_CAP0 477 /* Correct Asymptotic Potential hybrid */
XC_HYB_GGA_XC_CAM_QTP_01 482 /* CAM-QTP(01)
XC_HYB_GGA_XC_MPW1LYP 483 /* Becke 1-parameter mixture of mPW91 and LYP */
XC_HYB_GGA_XC_MPW1PBE 484 /* Becke 1-parameter mixture of mPW91 and PBE */
XC_HYB_GGA_XC_KMLYP 485 /* Kang-Musgrave hybrid */
XC_GGA_K_VW 500 /* von Weiszaecker functional */
XC_GGA_K_GE2 501 /* Second-order gradient expansion (l = 1/9) */
XC_GGA_K_GOLDEN 502 /* TF-lambda-vW form by Golden (l = 13/45) */
XC_GGA_K_YT65 503 /* TF-lambda-vW form by Yonei and Tomishima (l = 1/5) */
XC_GGA_K_BALTIN 504 /* TF-lambda-vW form by Baltin (l = 5/9) */
XC_GGA_K_LIEB 505 /* TF-lambda-vW form by Lieb (l = 0.185909191) */
XC_GGA_K_ABSP1 506 /* gamma-TFvW form by Acharya et al [g = 1 - 1.412/N^(1/3)] */
XC_GGA_K_ABSP2 507 /* gamma-TFvW form by Acharya et al [g = 1 - 1.332/N^(1/3)] */
XC_GGA_K_GR 508 /* gamma-TFvW form by Gazquez and Robles */
XC_GGA_K_LUDENA 509 /* gamma-TFvW form by Ludena */
XC_GGA_K_GP85 510 /* gamma-TFvW form by Ghosh and Parr */
XC_GGA_K_PEARSON 511 /* Pearson */
XC_GGA_K_OL1 512 /* Ou-Yang and Levy v.1 */
XC_GGA_K_OL2 513 /* Ou-Yang and Levy v.2 */
XC_GGA_K_FR_B88 514 /* Fuentealba & Reyes (B88 version) */
XC_GGA_K_FR_PW86 515 /* Fuentealba & Reyes (PW86 version) */
XC_GGA_K_DK 516 /* DePristo and Kress */
XC_GGA_K_PERDEW 517 /* Perdew */
XC_GGA_K_VSK 518 /* Vitos, Skriver, and Kollar */
XC_GGA_K_VJKS 519 /* Vitos, Johansson, Kollar, and Skriver */
XC_GGA_K_ERNZERHOF 520 /* Ernzerhof */
XC_GGA_K_LC94 521 /* Lembarki & Chermette */
XC_GGA_K_LLP 522 /* Lee, Lee & Parr */
XC_GGA_K_THAKKAR 523 /* Thakkar 1992 */
XC_GGA_X_WPBEH 524 /* short-range version of the PBE */
XC_GGA_X_HJS_PBE 525 /* HJS screened exchange PBE version */
XC_GGA_X_HJS_PBE_SOL 526 /* HJS screened exchange PBE_SOL version */
XC_GGA_X_HJS_B88 527 /* HJS screened exchange B88 version */
XC_GGA_X_HJS_B97X 528 /* HJS screened exchange B97x version */
XC_GGA_X_ITYH 529 /* short-range recipe for exchange GGA functionals */
XC_GGA_X_SFAT 530 /* short-range recipe for exchange GGA functionals */
XC_HYB_MGGA_XC_WB97M_V 531 /* Mardirossian and Head-Gordon */
XC_LDA_X_REL 532 /* Relativistic exchange */
XC_GGA_X_SG4 533 /* Semiclassical GGA at fourth order */
XC_GGA_C_SG4 534 /* Semiclassical GGA at fourth order */
XC_GGA_X_GG99 535 /* Gilbert and Gill 1999 */
XC_LDA_XC_1D_EHWLRG_1 536 /* LDA constructed from slab-like systems of 1 electron */
XC_LDA_XC_1D_EHWLRG_2 537 /* LDA constructed from slab-like systems of 2 electrons */
XC_LDA_XC_1D_EHWLRG_3 538 /* LDA constructed from slab-like systems of 3 electrons */
XC_GGA_X_PBEpow 539 /* PBE power */
XC_MGGA_X_TM 540 /* Tao and Mo 2016 */
XC_MGGA_X_VT84 541 /* meta-GGA version of VT{8,4} GGA */
XC_MGGA_X_SA_TPSS 542 /* TPSS with correct surface asymptotics */
XC_MGGA_K_PC07 543 /* Perdew and Constantin 2007 */
XC_GGA_X_KGG99 544 /* Gilbert and Gill 1999 (mixed) */
XC_GGA_XC_HLE16 545 /* high local exchange 2016 */
XC_LDA_X_ERF 546 /* Attenuated exchange LDA (erf) */
XC_LDA_XC_LP_A 547 /* Lee-Parr reparametrization B */
XC_LDA_XC_LP_B 548 /* Lee-Parr reparametrization B */
XC_LDA_X_RAE 549 /* Rae self-energy corrected exchange */
XC_LDA_K_ZLP 550 /* kinetic energy version of ZLP */
XC_LDA_C_MCWEENY 551 /* McWeeny 76 */
XC_LDA_C_BR78 552 /* Brual & Rothstein 78 */
XC_GGA_C_SCAN_E0 553 /* GGA component of SCAN */
XC_LDA_C_PK09 554 /* Proynov and Kong 2009 */
XC_GGA_C_GAPC 555 /* GapC */
XC_GGA_C_GAPLOC 556 /* Gaploc */
XC_GGA_C_ZVPBEINT 557 /* another spin-dependent correction to PBEint */
XC_GGA_C_ZVPBESOL 558 /* another spin-dependent correction to PBEsol */
XC_GGA_C_TM_LYP 559 /* Takkar and McCarthy reparametrization */
XC_GGA_C_TM_PBE 560 /* Thakkar and McCarthy reparametrization */
XC_GGA_C_W94 561 /* Wilson 94 (Eq. 25) */
XC_MGGA_C_KCIS 562 /* Krieger, Chen, Iafrate, and Savin */
XC_HYB_MGGA_XC_B0KCIS 563 /* Hybrid based on KCIS */
XC_MGGA_XC_LP90 564 /* Lee & Parr, Eq. (56) */
XC_GGA_C_CS1 565 /* A dynamical correlation functional */
XC_HYB_MGGA_XC_MPW1KCIS 566 /* Modified Perdew-Wang + KCIS hybrid */
XC_HYB_MGGA_XC_MPWKCIS1K 567 /* Modified Perdew-Wang + KCIS hybrid with more exact exchange */
XC_HYB_MGGA_XC_PBE1KCIS 568 /* Perdew-Burke-Ernzerhof + KCIS hybrid */
XC_HYB_MGGA_XC_TPSS1KCIS 569 /* TPSS hybrid with KCIS correlation */
XC_GGA_X_B88M 570 /* Becke 88 reoptimized to be used with mgga_c_tau1 */
XC_MGGA_C_B88 571 /* Meta-GGA correlation by Becke */
XC_HYB_GGA_XC_B5050LYP 572 /* Like B3LYP but more exact exchange */
XC_LDA_C_OW_LYP 573 /* Wigner with corresponding LYP parameters */
XC_LDA_C_OW 574 /* Optimized Wigner */
XC_MGGA_X_GX 575 /* GX functional of Loos */
XC_MGGA_X_PBE_GX 576 /* PBE-GX functional of Loos */
XC_LDA_XC_GDSMFB 577 /* Groth et al. parametrization */
XC_LDA_C_GK72 578 /* Gordon and Kim 1972 */
XC_LDA_C_KARASIEV 579 /* Karasiev reparameterization of Chachiyo */
XC_LDA_K_LP96 580 /* Liu-Parr kinetic */
XC_MGGA_X_REVSCAN 581 /* revised SCAN */
XC_MGGA_C_REVSCAN 582 /* revised SCAN correlation */
XC_HYB_MGGA_X_REVSCAN0 583 /* revised SCAN hybrid exchange */
XC_MGGA_C_SCAN_VV10 584 /* SCAN correlation + VV10 correlation */
XC_MGGA_C_REVSCAN_VV10 585 /* revised SCAN correlation */
XC_MGGA_X_BR89_EXPLICIT 586 /* Becke-Roussel 89 with an explicit inversion of x(y) */
XC_GGA_K_PBE3 595 /* Three parameter PBE-like expansion */
XC_GGA_K_PBE4 596 /* Four parameter PBE-like expansion */
XC_GGA_K_EXP4 597 /* Intermediate form between PBE3 and PBE4 */
XC_HYB_MGGA_XC_B98 598 /* Becke 98 */
As this is a part of the libXC source code, please note that this library is release under MPL 2.0:
https://www.mozilla.org/en-US/MPL/2.0/Uwe
