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All results from a given calculation for HBHHBH (Diborane(4) C2V)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-51.956996
Energy at 298.15K 
HF Energy-51.888469
Nuclear repulsion energy24.615795
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 B2PLYP=FULLultrafine/aug-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 A1 2848 2741 0.18      
2 A1 2093 2014 21.32      
3 A1 1357 1306 3.18      
4 A1 1115 1073 2.63      
5 A1 732 705 4.66      
6 A2 1266 1218 0.00      
7 A2 640 616 0.00      
8 B1 2102 2022 49.64      
9 B1 801 771 1.36      
10 B2 2807 2701 34.50      
11 B2 1347 1296 206.54      
12 B2 532 512 35.70      

Unscaled Zero Point Vibrational Energy (zpe) 8819.3 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 8486.8 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 B2PLYP=FULLultrafine/aug-cc-pVDZ
ABC
6.60655 0.83104 0.80125

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.739 -0.116
B2 0.000 -0.739 -0.116
H3 0.906 0.000 0.580
H4 -0.906 0.000 0.580
H5 0.000 1.912 -0.002
H6 0.000 -1.912 -0.002

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47771.36001.36001.17832.6530
B21.47771.36001.36002.65301.1783
H31.36001.36001.81112.19392.1939
H41.36001.36001.81112.19392.1939
H51.17832.65302.19392.19393.8234
H62.65301.17832.19392.19393.8234

picture of Diborane(4) C2V state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H3 57.093 B1 B2 H4 57.093
B1 B2 H6 174.468 B1 H3 B2 65.814
B1 H4 B2 65.814 B2 B1 H3 57.093
B2 B1 H4 57.093 B2 B1 H5 174.468
H3 B1 H4 83.494 H3 B1 H5 119.436
H3 B2 H4 83.494 H3 B2 H6 119.436
H4 B1 H5 119.436 H4 B2 H6 119.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability