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IV.D.1. (XII.C.1.)

Geometry Comparison

BF3- (Borane, trifluoro- anion)


distance is atom 1 (B) to atom 2 (F)
No experimental bond length available. Calculated bond lengths are shown.
Calculated bond length in Å
Methods with predefined basis sets
semi-empirical AM1 1.280
PM6 1.375
composite G2 1.406
G3 1.406
G3B3 1.418
CBS-Q 1.412

Calculated bond length in Å
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) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ
hartree fock HF 1.408 1.419 1.419 1.438 1.407 1.406 1.398 1.405 1.405 1.397 1.393 1.416 1.394 1.392 1.407 1.388 1.386
ROHF 1.402 1.419 1.419 1.438 1.406 1.406 1.398 1.405 1.405 1.397   1.416 1.394 1.392 1.407 1.388 1.386
density functional LSDA 1.424 1.414 1.414 1.431 1.406 1.406 1.396 1.405 1.405 1.397   1.411 1.399 1.340 1.402 1.390 1.316
BLYP 1.448 1.436 1.436 1.451 1.428 1.428 1.418 1.428 1.428 1.419   1.432 1.422        
B1B95 1.426 1.421 1.421 1.439 1.413 1.413 1.403 1.412 1.412 1.405   1.419 1.405 1.385 1.409 1.396  
B3LYP 1.433 1.426 1.426 1.443 1.418 1.418 1.408 1.417 1.417 1.408 1.411 1.423 1.410 1.408 1.414 1.402 1.400
B3LYPultrafine         1.417                        
B3PW91 1.432 1.426 1.426 1.442 1.417 1.417 1.407 1.416 1.416 1.408   1.422 1.409        
mPW1PW91 1.428 1.424 1.424 1.440 1.414 1.414 1.405 1.413 1.413 1.405   1.420 1.406   1.412 1.398  
M06-2X         1.416                        
PBEPBE 1.443 1.433 1.433 1.448 1.424 1.424 1.414 1.424 1.424 1.416   1.429 1.417 1.364 1.420 1.407 1.328
Moller Plesset perturbation MP2FC 1.419 1.433 1.433 1.457 1.423 1.423 1.416 1.417 1.417 1.409 1.412 1.428 1.409 1.406 1.426 1.404 1.401
MP2FU 1.419 1.433 1.433 1.456 1.421 1.421 1.414 1.416 1.416 1.405   1.428 1.406 1.403 1.425 1.400 1.398
ROMP2 1.418 1.434 1.434 1.471 1.427 1.427 1.416 1.421 1.421 1.410   1.435 1.410 1.395 1.436    
MP3         1.418                        
MP4   1.436     1.428       1.422       1.411        
Configuration interaction CID   1.428 1.428 1.450 1.415     1.408                  
CISD   1.428 1.428 1.451 1.415     1.409                  
Quadratic configuration interaction QCISD   1.433 1.433 1.456 1.422 1.422 1.414 1.415 1.415 1.407   1.427 1.406   1.424 1.401  
QCISD(T)         1.427             1.435 1.409   1.342    
Coupled Cluster CCD   1.431 1.431 1.454 1.420 1.420 1.412 1.413 1.413 1.405   1.425 1.404   1.422 1.399  
CCSD         1.421             1.427 1.405        
CCSD(T)         1.426             1.435 1.408 1.404 1.434 1.396  
CCSD(T)=FULL         1.426             1.434 1.404   1.432 1.389  

Calculated bond length in Å
Methods with effective core potentials (select basis sets)
CEP-31G CEP-31G* CEP-121G CEP-121G* LANL2DZ SDD
hartree fock HF 1.435 1.403 1.434 1.403 1.444 1.444
density functional B3LYP 1.444 1.419 1.444 1.418 1.449 1.449
Moller Plesset perturbation MP2FC 1.459 1.421 1.456 1.419 1.466 1.465
Values that are outliers may reflect different atom numbering for different levels of theory.
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