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: MP3=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at MP3=FULL/cc-pVTZ
 hartrees
Energy at 0K-53.163591
Energy at 298.15K-53.169578
HF Energy-52.834618
Nuclear repulsion energy32.412537
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 MP3=FULL/cc-pVTZ
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 2678 2497 0.00      
2 Ag 2227 2077 0.00      
3 Ag 1243 1160 0.00      
4 Ag 845 788 0.00      
5 Au 898 837 0.00      
6 B1g 2764 2578 0.00      
7 B1g 950 886 0.00      
8 B1u 2068 1929 8.81      
9 B1u 1009 941 25.55      
10 B2g 1936 1806 0.00      
11 B2g 930 867 0.00      
12 B2u 2777 2590 166.16      
13 B2u 996 929 0.63      
14 B2u 379 354 16.69      
15 B3g 1137 1060 0.00      
16 B3u 2662 2483 143.44      
17 B3u 1788 1667 484.82      
18 B3u 1229 1146 75.84      

Unscaled Zero Point Vibrational Energy (zpe) 14258.6 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 13297.6 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 MP3=FULL/cc-pVTZ
ABC
2.72089 0.62503 0.57378

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.871 0.000 0.000
B2 -0.871 0.000 0.000
H3 0.000 0.000 0.969
H4 0.000 0.000 -0.969
H5 1.441 1.033 0.000
H6 1.441 -1.033 0.000
H7 -1.441 1.033 0.000
H8 -1.441 -1.033 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.74241.30321.30321.17961.17962.53212.5321
B21.74241.30321.30322.53212.53211.17961.1796
H31.30321.30321.93842.02032.02032.02032.0203
H41.30321.30321.93842.02032.02032.02032.0203
H51.17962.53212.02032.02032.06612.88113.5454
H61.17962.53212.02032.02032.06613.54542.8811
H72.53211.17962.02032.02032.88113.54542.0661
H82.53211.17962.02032.02033.54542.88112.0661

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.903 B1 H4 B2 83.903
H3 B1 H4 96.097 H3 B1 H5 108.825
H3 B1 H6 108.825 H3 B2 H4 96.097
H3 B2 H7 108.825 H3 B2 H8 108.825
H4 B1 H5 108.825 H4 B1 H6 108.825
H4 B2 H7 108.825 H4 B2 H8 108.825
H5 B1 H6 122.278 H7 B2 H8 122.278
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability