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Release 22May 2022
NIST Standard Reference Database 101
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XVII.C.1. (III.D.6.)

Calculated Ionization Energy for GeCl (Germanium monochloride)

Please note! These calculated ionizataion energies have the vibrational zero-point energy (zpe) included, but the zpe has NOT been scaled. Click on an entry for more details, including the ionization energy with a scaled zpe.
Original data displayed. Press to display differences.
Differences displayed. Press to display original data.

Ionization Energies in eV
Methods with predefined basis sets
semi-empirical AM1  
PM3  
PM6  
composite G2 7.240
G3B3 7.376
G4 7.378
CBS-Q 7.386

Ionization Energies in eV
Methods with standard basis sets
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVDZ daug-cc-pVTZ
hartree fock HF 4.958 7.476 7.177 7.653 7.165 7.165 7.158 7.166 7.166 7.028 7.041 7.128 7.130 7.050 7.045 7.133 7.060 7.048 7.131 7.059
density functional BLYP 5.010 7.246 7.170 7.414 7.167 7.167 7.214 7.246 7.245 7.076 7.167 7.191 7.148 7.146   7.217 7.170   7.216 7.169
B1B95 5.279 7.298 7.298 7.639 7.281 7.281 7.293 7.311 7.311 7.174 7.215 7.272 7.262 7.207   7.284 7.219   7.282 7.218
B3LYP 5.289 7.573 7.436 7.744 7.427 7.427 7.455 7.484 7.484 7.327 7.393 7.440 7.410 7.383 7.383 7.457 7.398 7.388 7.454 7.398
B3LYPultrafine   7.573     7.426 7.426 7.454 7.484   7.326 7.393 7.439 7.408 7.384   7.455 7.400   7.454 7.398
B3PW91 5.405 7.673 7.518 7.816 7.489 7.489 7.495 7.515 7.515 7.379 7.420 7.482 7.473 7.421   7.487 7.430   7.484 7.429
mPW1PW91 5.413 7.692 7.524 7.834 7.495 7.495 7.504 7.520 7.520 7.381 7.424 7.482 7.477 7.423   7.493 7.435   7.491 7.434
M06-2X 5.355 7.675 7.422 7.932 7.493 7.493 7.502 7.522 7.522 7.381 7.409 7.476 7.459 7.407   7.475 7.416   7.471 7.414
PBEPBE 5.241 7.440 7.343 7.585 7.322 7.322 7.351 7.372 7.372 7.222 7.290 7.324 7.301 7.274   7.344 7.292   7.342 7.291
PBEPBEultrafine   7.440     7.322 7.322 7.351 7.372   7.222 7.290 7.324 7.301 7.274   7.344 7.292   7.342 7.291
PBE1PBE 5.359 7.489 7.489 7.803 7.465 7.465 7.474 7.490 7.490 7.350 7.393 7.451 7.444 7.388   7.461 7.400   7.458 7.399
HSEh1PBE 5.351 7.646 7.479 7.784 7.450 7.450 7.460 7.479 7.479 7.338 7.384 7.439 7.430 7.380   7.449 7.391   7.447 7.390
TPSSh 5.356 7.627 7.486 7.739 7.437 7.437 7.445 7.461 7.461 7.318 7.367 7.421 7.410 7.370 7.364 7.424 7.382 7.369 7.422 7.381
wB97X-D 5.388 7.617 7.407 7.755 7.369 7.369 7.374 7.391 7.391 7.258 7.288 7.359 7.354 7.287 7.283 7.368 7.295 7.287 7.365 7.293
B97D3 5.217 7.440 7.340 7.596 7.303 7.303 7.325 7.352 7.352 7.209 7.274 7.302 7.277 7.270 7.269 7.318 7.287 7.277 7.318 7.287
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVDZ daug-cc-pVTZ
Moller Plesset perturbation MP2 4.423 7.096 7.085 7.283 7.071 7.071 7.084 7.091 7.091 7.127 7.174 7.123 7.090   7.252 7.207 7.248 7.266 7.206 7.247
MP2=FULL 4.416 7.091 7.079 7.263 7.075 7.075 7.088 7.130 7.130 7.114 7.208 7.109 7.084 7.177 7.212 7.199 7.213 7.216 7.197 7.203
MP3         7.131   6.561                          
MP3=FULL         7.130   7.140                          
MP4   6.969     7.062       7.082         7.237            
B2PLYP 4.926 7.352 7.260 7.528 7.250 7.250 7.272 7.290 7.290 7.206 7.262 7.272 7.243 7.266   7.316 7.294   7.315 7.293
B2PLYP=FULL 4.924 7.351 7.258 7.522 7.253 7.253 7.275 7.305 7.305 7.205 7.276 7.268 7.242 7.259   7.314 7.284   7.312 7.280
B2PLYP=FULLultrafine 4.924 7.351 7.258 7.522 7.253 7.253 7.275 7.305 7.305 7.205 7.276 7.268 7.242 7.259   7.314 7.284   7.312 7.280
Configuration interaction CID   7.157 7.154 7.347 7.141     7.157     7.207   7.145 7.224         7.235 7.253
CISD   7.118 7.145 7.304 7.131     7.147     7.205   7.137 7.224         7.229 7.254
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVDZ daug-cc-pVTZ
Quadratic configuration interaction QCISD   7.048 7.127 7.230 7.119 7.119 7.131 7.137 7.137 7.198 7.247 7.152 7.127 7.272   7.251 7.314   7.251 7.313
QCISD(T)         7.082     7.099     7.237 7.110 7.087 7.253   7.228 7.306   7.228 7.306
QCISD(T)=FULL         7.082   7.097       7.253   7.080 7.227 7.286 7.220   7.292 7.219 7.264
Coupled Cluster CCD   7.124 7.152 7.316 7.141 7.141 7.151 7.160 7.160 7.201 7.249 7.176 7.149 7.273   7.264 7.313   7.264 7.312
CCSD         7.135 7.135 7.147 7.153 7.153 7.206 7.254 7.168 7.142 7.278 7.333 7.263 7.320   7.263 7.319
CCSD=FULL         7.135         7.194 7.274 7.153 7.136 7.252 7.300 7.255 7.285 7.301 7.253 7.276
CCSD(T)         7.092 7.092 7.107 7.109 7.109 7.186 7.242 7.120 7.096 7.258 7.323 7.236 7.311 7.337 7.236 7.310
CCSD(T)=FULL         7.091           7.257 7.103 7.090 7.231 7.289 7.227   7.295 7.226 7.267
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVDZ daug-cc-pVTZ

Ionization Energies in eV
Methods with effective core potentials (select basis sets)
CEP-31G CEP-31G* CEP-121G CEP-121G* LANL2DZ SDD cc-pVTZ-PP aug-cc-pVTZ-PP Def2TZVPP
hartree fock HF 7.778   7.785   7.778 7.681     7.040
density functional BLYP                 7.133
B1B95                 7.201
B3LYP 7.901   7.892   7.906 7.831     7.373
B3LYPultrafine                 7.372
B3PW91                 7.413
mPW1PW91                 7.411
M06-2X                 7.395
PBEPBE                 7.263
PBEPBEultrafine                 7.263
PBE1PBE                 7.379
HSEh1PBE                 7.370
TPSSh                 7.351
wB97X-D 7.923   7.917   7.960 7.893     7.285
B97D3                 7.245
Moller Plesset perturbation MP2 7.349   7.367   7.325 7.239     7.218
MP2=FULL                 7.202
B2PLYP                 7.264
B2PLYP=FULL                 7.259
B2PLYP=FULLultrafine                 7.259
Configuration interaction CID                 7.229
CISD                 7.230
Quadratic configuration interaction QCISD                 7.283
QCISD(T)                 7.263
QCISD(T)=FULL                 7.245
Coupled Cluster CCD                 7.284
CCSD                 7.290
CCSD=FULL                 7.274
CCSD(T)                 7.268
CCSD(T)=FULL                 7.249
For descriptions of the methods (AM1, HF, MP2, ...) and basis sets (3-21G, 3-21G*, 6-31G, ...) see the glossary in section I.C. Predefined means the basis set used is determined by the method.