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All results from a given calculation for B2H6 (Diborane)

using model chemistry: CCSD/6-31G*

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/6-31G*
 hartrees
Energy at 0K-53.027697
Energy at 298.15K-53.033617
HF Energy-52.812092
Nuclear repulsion energy32.101292
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/6-31G*
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 2663 2515        
2 Ag 2248 2123        
3 Ag 1228 1160        
4 Ag 837 790        
5 Au 862 814        
6 B1g 2744 2591        
7 B1g 958 905        
8 B1u 2080 1964 15.80      
9 B1u 1003 947 16.96      
10 B2g 1932 1824        
11 B2g 886 837        
12 B2u 2756 2602 163.42      
13 B2u 1001 945 2.37      
14 B2u 369 349 13.13      
15 B3g 1073 1014        
16 B3u 2649 2501 140.61      
17 B3u 1803 1703 491.38      
18 B3u 1220 1152 68.44      

Unscaled Zero Point Vibrational Energy (zpe) 14156.2 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 13367.7 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/6-31G*
ABC
2.67466 0.61336 0.56312

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G*

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 0.977
H4 0.000 0.000 -0.977
H5 1.460 1.042 0.000
H6 1.460 -1.042 0.000
H7 -1.460 1.042 0.000
H8 -1.460 -1.042 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75541.31361.31361.19391.19392.55972.5597
B21.75541.31361.31362.55972.55971.19391.1939
H31.31361.31361.95462.04292.04292.04292.0429
H41.31361.31361.95462.04292.04292.04292.0429
H51.19392.55972.04292.04292.08412.92063.5879
H61.19392.55972.04292.04292.08413.58792.9206
H72.55971.19392.04292.04292.92063.58792.0841
H82.55971.19392.04292.04293.58792.92062.0841

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.853 B1 H4 B2 83.853
H3 B1 H4 96.147 H3 B1 H5 109.030
H3 B1 H6 109.030 H3 B2 H4 96.147
H3 B2 H7 109.030 H3 B2 H8 109.030
H4 B1 H5 109.030 H4 B1 H6 109.030
H4 B2 H7 109.030 H4 B2 H8 109.030
H5 B1 H6 121.582 H7 B2 H8 121.582
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability