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All results from a given calculation for B2H6 (Diborane)

using model chemistry: CISD/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 CISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-53.103463
Energy at 298.15K-53.109438
HF Energy-52.833422
Nuclear repulsion energy32.227955
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 CISD/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 2666 2457 0.00      
2 Ag 2224 2050 0.00      
3 Ag 1240 1143 0.00      
4 Ag 831 766 0.00      
5 Au 870 802 0.00      
6 B1g 2743 2528 0.00      
7 B1g 961 885 0.00      
8 B1u 2038 1878 13.30      
9 B1u 1019 939 26.73      
10 B2g 1918 1768 0.00      
11 B2g 911 839 0.00      
12 B2u 2757 2541 182.78      
13 B2u 1012 933 1.24      
14 B2u 385 355 16.25      
15 B3g 1094 1008 0.00      
16 B3u 2650 2442 151.05      
17 B3u 1776 1637 536.33      
18 B3u 1227 1131 85.64      

Unscaled Zero Point Vibrational Energy (zpe) 14159.9 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 13052.6 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 CISD/6-311+G(3df,2p)
ABC
2.70547 0.61556 0.56565

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.878 0.000 0.000
B2 -0.878 0.000 0.000
H3 0.000 0.000 0.973
H4 0.000 0.000 -0.973
H5 1.451 1.036 0.000
H6 1.451 -1.036 0.000
H7 -1.451 1.036 0.000
H8 -1.451 -1.036 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75671.31061.31061.18361.18362.54952.5495
B21.75671.31061.31062.54952.54951.18361.1836
H31.31061.31061.94552.03112.03112.03112.0311
H41.31061.31061.94552.03112.03112.03112.0311
H51.18362.54952.03112.03112.07132.90273.5659
H61.18362.54952.03112.03112.07133.56592.9027
H72.54951.18362.03112.03112.90273.56592.0713
H82.54951.18362.03112.03113.56592.90272.0713

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.161 B1 H4 B2 84.161
H3 B1 H4 95.839 H3 B1 H5 108.933
H3 B1 H6 108.933 H3 B2 H4 95.839
H3 B2 H7 108.933 H3 B2 H8 108.933
H4 B1 H5 108.933 H4 B1 H6 108.933
H4 B2 H7 108.933 H4 B2 H8 108.933
H5 B1 H6 122.087 H7 B2 H8 122.087
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability