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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD/aug-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 QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-53.137321
Energy at 298.15K-53.143266
HF Energy-52.835324
Nuclear repulsion energy32.136022
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/aug-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 2634 2535 0.00      
2 Ag 2193 2110 0.00      
3 Ag 1218 1172 0.00      
4 Ag 820 789 0.00      
5 Au 860 828 0.00      
6 B1g 2710 2609 0.00      
7 B1g 947 912 0.00      
8 B1u 2017 1942 11.50      
9 B1u 1004 966 25.67      
10 B2g 1902 1830 0.00      
11 B2g 899 865 0.00      
12 B2u 2725 2623 175.59      
13 B2u 993 956 1.22      
14 B2u 376 361 15.90      
15 B3g 1079 1038 0.00      
16 B3u 2617 2519 146.78      
17 B3u 1761 1695 504.04      
18 B3u 1205 1159 80.64      

Unscaled Zero Point Vibrational Energy (zpe) 13979.2 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 13453.6 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 QCISD/aug-cc-pVTZ
ABC
2.68489 0.61262 0.56262

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.881 0.000 0.000
B2 -0.881 0.000 0.000
H3 0.000 0.000 0.975
H4 0.000 0.000 -0.975
H5 1.454 1.040 0.000
H6 1.454 -1.040 0.000
H7 -1.454 1.040 0.000
H8 -1.454 -1.040 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76141.31401.31401.18771.18772.55592.5559
B21.76141.31401.31402.55592.55591.18771.1877
H31.31401.31401.95032.03642.03642.03642.0364
H41.31401.31401.95032.03642.03642.03642.0364
H51.18772.55592.03642.03642.08042.90783.5754
H61.18772.55592.03642.03642.08043.57542.9078
H72.55591.18772.03642.03642.90783.57542.0804
H82.55591.18772.03642.03643.57542.90782.0804

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.174 B1 H4 B2 84.174
H3 B1 H4 95.826 H3 B1 H5 108.873
H3 B1 H6 108.873 H3 B2 H4 95.826
H3 B2 H7 108.873 H3 B2 H8 108.873
H4 B1 H5 108.873 H4 B1 H6 108.873
H4 B2 H7 108.873 H4 B2 H8 108.873
H5 B1 H6 122.288 H7 B2 H8 122.288
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability