return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for B2H6 (Diborane)

using model chemistry: CCSD=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-53.087932
Energy at 298.15K-53.093849
HF Energy-52.817117
Nuclear repulsion energy31.770414
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CCSD=FULL/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 2622 2622        
2 Ag 2178 2178        
3 Ag 1201 1201        
4 Ag 811 811        
5 Au 840 840        
6 B1g 2697 2697        
7 B1g 931 931        
8 B1u 1996 1996 15.34      
9 B1u 991 991 26.04      
10 B2g 1888 1888        
11 B2g 886 886        
12 B2u 2714 2714 180.67      
13 B2u 979 979 2.18      
14 B2u 373 373 15.48      
15 B3g 1069 1069        
16 B3u 2605 2605 148.50      
17 B3u 1757 1757 546.42      
18 B3u 1186 1186 87.85      

Unscaled Zero Point Vibrational Energy (zpe) 13862.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13862.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/aug-cc-pVDZ
ABC
2.63346 0.59701 0.54806

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.893 0.000 0.000
B2 -0.893 0.000 0.000
H3 0.000 0.000 0.981
H4 0.000 0.000 -0.981
H5 1.471 1.052 0.000
H6 1.471 -1.052 0.000
H7 -1.471 1.052 0.000
H8 -1.471 -1.052 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.78661.32671.32671.20041.20042.58812.5881
B21.78661.32671.32672.58812.58811.20041.2004
H31.32671.32671.96202.05772.05772.05772.0577
H41.32671.32671.96202.05772.05772.05772.0577
H51.20042.58812.05772.05772.10402.94273.6176
H61.20042.58812.05772.05772.10403.61762.9427
H72.58811.20042.05772.05772.94273.61762.1040
H82.58811.20042.05772.05773.61762.94272.1040

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.642 B1 H4 B2 84.642
H3 B1 H4 95.358 H3 B1 H5 108.920
H3 B1 H6 108.920 H3 B2 H4 95.358
H3 B2 H7 108.920 H3 B2 H8 108.920
H4 B1 H5 108.920 H4 B1 H6 108.920
H4 B2 H7 108.920 H4 B2 H8 108.920
H5 B1 H6 122.421 H7 B2 H8 122.421
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability