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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-53.074418
Energy at 298.15K-53.080324
HF Energy-52.815781
Nuclear repulsion energy31.661835
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 QCISD/cc-pVDZ
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 2634 2527 0.00      
2 Ag 2197 2108 0.00      
3 Ag 1210 1161 0.00      
4 Ag 812 779 0.00      
5 Au 837 803 0.00      
6 B1g 2715 2605 0.00      
7 B1g 935 897 0.00      
8 B1u 2017 1935 18.59      
9 B1u 999 959 20.37      
10 B2g 1886 1809 0.00      
11 B2g 878 842 0.00      
12 B2u 2728 2617 182.82      
13 B2u 987 947 1.87      
14 B2u 365 350 14.24      
15 B3g 1066 1023 0.00      
16 B3u 2617 2510 154.58      
17 B3u 1756 1685 549.55      
18 B3u 1194 1145 89.44      

Unscaled Zero Point Vibrational Energy (zpe) 13916.2 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 13351.2 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 QCISD/cc-pVDZ
ABC
2.61392 0.59317 0.54455

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.896 0.000 0.000
B2 -0.896 0.000 0.000
H3 0.000 0.000 0.985
H4 0.000 0.000 -0.985
H5 1.476 1.056 0.000
H6 1.476 -1.056 0.000
H7 -1.476 1.056 0.000
H8 -1.476 -1.056 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.79221.33161.33161.20461.20462.59652.5965
B21.79221.33161.33162.59652.59651.20461.2046
H31.33161.33161.97012.06492.06492.06492.0649
H41.33161.33161.97012.06492.06492.06492.0649
H51.20462.59652.06492.06492.11152.95213.6296
H61.20462.59652.06492.06492.11153.62962.9521
H72.59651.20462.06492.06492.95213.62962.1115
H82.59651.20462.06492.06493.62962.95212.1115

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.586 B1 H4 B2 84.586
H3 B1 H4 95.414 H3 B1 H5 108.905
H3 B1 H6 108.905 H3 B2 H4 95.414
H3 B2 H7 108.905 H3 B2 H8 108.905
H4 B1 H5 108.905 H4 B1 H6 108.905
H4 B2 H7 108.905 H4 B2 H8 108.905
H5 B1 H6 122.436 H7 B2 H8 122.436
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability