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All results from a given calculation for B2H6 (Diborane)

using model chemistry: CCSD(T)/6-311+G(3df,2p)

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(T)/6-311+G(3df,2p)
 hartrees
Energy at 0K-53.135966
Energy at 298.15K-53.141887
HF Energy-52.833423
Nuclear repulsion energy32.123929
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(T)/6-311+G(3df,2p)
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 2619 2585        
2 Ag 2186 2158        
3 Ag 1209 1193        
4 Ag 818 807        
5 Au 855 843        
6 B1g 2697 2662        
7 B1g 941 929        
8 B1u 2011 1985        
9 B1u 995 982        
10 B2g 1893 1869        
11 B2g 895 883        
12 B2u 2711 2676        
13 B2u 976 963        
14 B2u 370 365        
15 B3g 1059 1045        
16 B3u 2604 2570        
17 B3u 1749 1726        
18 B3u 1197 1181        

Unscaled Zero Point Vibrational Energy (zpe) 13892.3 cm-1
Scaled (by 0.9869) Zero Point Vibrational Energy (zpe) 13710.3 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(T)/6-311+G(3df,2p)
ABC
2.68185 0.61256 0.56267

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.880 0.000 0.000
B2 -0.880 0.000 0.000
H3 0.000 0.000 0.977
H4 0.000 0.000 -0.977
H5 1.455 1.040 0.000
H6 1.455 -1.040 0.000
H7 -1.455 1.040 0.000
H8 -1.455 -1.040 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76081.31491.31491.18831.18832.55632.5563
B21.76081.31491.31492.55632.55631.18831.1883
H31.31491.31491.95342.03772.03772.03772.0377
H41.31491.31491.95342.03772.03772.03772.0377
H51.18832.55632.03772.03772.08072.90943.5768
H61.18832.55632.03772.03772.08073.57682.9094
H72.55631.18832.03772.03772.90943.57682.0807
H82.55631.18832.03772.03773.57682.90942.0807

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.063 B1 H4 B2 84.063
H3 B1 H4 95.937 H3 B1 H5 108.879
H3 B1 H6 108.879 H3 B2 H4 95.937
H3 B2 H7 108.879 H3 B2 H8 108.879
H4 B1 H5 108.879 H4 B1 H6 108.879
H4 B2 H7 108.879 H4 B2 H8 108.879
H5 B1 H6 122.199 H7 B2 H8 122.199
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability