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

Geometry Comparison

BF- (Boron monofluoride 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 1.209
PM6 1.338
composite G2 1.406
G3 1.406
G3B3 1.413
CBS-Q 1.420

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 1.388 1.419 1.419 1.478 1.406 1.406 1.313 1.384 1.384 1.385 1.354 1.411 1.356 1.343 1.313 1.265 1.257
density functional SVWN   1.407         1.335                    
BLYP 1.423 1.433 1.433 1.487 1.429 1.429 1.362 1.409 1.409 1.405   1.425 1.388        
B1B95 1.402 1.420 1.420 1.472 1.411 1.411 1.344 1.392 1.392 1.391   1.410 1.371 1.360 1.348 1.306 1.297
B3LYP 1.406 1.420 1.420 1.473 1.413 1.413 1.348 1.394 1.394 1.391 1.372 1.412 1.373 1.362 1.351 1.311 1.302
B3LYPultrafine         1.413                        
B3PW91 1.404 1.423 1.423 1.474 1.413 1.413 1.346 1.394 1.394 1.392   1.413 1.371        
mPW1PW91 1.400 1.420 1.420 1.471 1.409 1.409 1.343 1.390 1.390 1.389   1.410 1.368        
M06-2X         1.408                        
PBEPBE 1.416 1.431 1.431 1.483 1.424 1.424 1.358 1.404 1.404 1.402   1.422 1.382 1.372     1.315
HSEh1PBE         1.410                        
Moller Plesset perturbation MP2FC 1.388 1.427 1.427 1.497 1.424 1.424 1.355 1.395 1.395 1.396 1.375 1.421 1.375 1.365 1.373 1.312 1.294
MP2FU 1.388 1.427 1.427 1.497 1.421 1.421 1.352 1.394 1.394 1.390   1.420 1.368 1.360     1.288
MP3         1.420                        
MP4   1.433     1.430       1.402       1.380        
B2PLYP         1.416   1.350                    
Configuration interaction CID   1.425 1.425 1.494 1.420     1.390                  
CISD   1.428 1.428 1.497 1.422     1.392                  
Quadratic configuration interaction QCISD   1.432 1.432 1.504 1.430 1.430 1.354 1.400 1.400 1.400   1.428 1.376        
QCISD(T)         1.431             1.429 1.379   1.377 1.317  
Coupled Cluster CCD   1.428 1.428 1.498 1.425 1.425 1.350 1.395 1.395 1.396   1.422 1.372   1.370 1.306  
CCSD(T)                       1.428 1.378 1.367 1.375 1.316 1.303
CCSD(T)=FULL         1.426                 1.361     1.297

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 1.469 1.379 1.467 1.379 1.487 1.486
density functional B3LYP 1.473 1.401 1.474 1.401 1.482 1.482
Moller Plesset perturbation MP2FC 1.508 1.405 1.501 1.404 1.517 1.516
Values that are outliers may reflect different atom numbering for different levels of theory.
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