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All results from a given calculation for B2H6 (Diborane)

using model chemistry: CCSD(T)/6-31G(2df,p)

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)/6-31G(2df,p)
 hartrees
Energy at 0K-53.113463
Energy at 298.15K-53.119399
HF Energy-52.824339
Nuclear repulsion energy32.081242
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)/6-31G(2df,p)
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 2668 2668        
2 Ag 2203 2203        
3 Ag 1220 1220        
4 Ag 822 822        
5 Au 861 861        
6 B1g 2752 2752        
7 B1g 950 950        
8 B1u 2031 2031        
9 B1u 1011 1011        
10 B2g 1900 1900        
11 B2g 908 908        
12 B2u 2764 2764        
13 B2u 996 996        
14 B2u 372 372        
15 B3g 1080 1080        
16 B3u 2655 2655        
17 B3u 1765 1765        
18 B3u 1208 1208        

Unscaled Zero Point Vibrational Energy (zpe) 14082.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14082.3 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)/6-31G(2df,p)
ABC
2.68178 0.60959 0.56006

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.883 0.000 0.000
B2 -0.883 0.000 0.000
H3 0.000 0.000 0.976
H4 0.000 0.000 -0.976
H5 1.457 1.041 0.000
H6 1.457 -1.041 0.000
H7 -1.457 1.041 0.000
H8 -1.457 -1.041 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76651.31641.31641.18831.18832.56112.5611
B21.76651.31641.31642.56112.56111.18831.1883
H31.31641.31641.95212.03912.03912.03912.0391
H41.31641.31641.95212.03912.03912.03912.0391
H51.18832.56112.03912.03912.08132.91373.5807
H61.18832.56112.03912.03912.08133.58072.9137
H72.56111.18832.03912.03912.91373.58072.0813
H82.56111.18832.03912.03913.58072.91372.0813

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.287 B1 H4 B2 84.287
H3 B1 H4 95.713 H3 B1 H5 108.898
H3 B1 H6 108.898 H3 B2 H4 95.713
H3 B2 H7 108.898 H3 B2 H8 108.898
H4 B1 H5 108.898 H4 B1 H6 108.898
H4 B2 H7 108.898 H4 B2 H8 108.898
H5 B1 H6 122.276 H7 B2 H8 122.276
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability