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

using model chemistry: B2PLYP=FULLultrafine/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-51.959867
Energy at 298.15K 
HF Energy-51.891071
Nuclear repulsion energy24.847697
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/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2879 2879 0.05      
2 A1 2145 2145 30.47      
3 A1 1377 1377 2.54      
4 A1 1143 1143 1.46      
5 A1 728 728 4.55      
6 A2 1308 1308 0.00      
7 A2 621 621 0.00      
8 B1 2154 2154 63.09      
9 B1 805 805 2.79      
10 B2 2840 2840 43.40      
11 B2 1387 1387 208.47      
12 B2 492 492 37.01      

Unscaled Zero Point Vibrational Energy (zpe) 8939.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8939.2 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 B2PLYP=FULLultrafine/6-31+G**
ABC
6.77137 0.84689 0.81457

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.732 -0.114
B2 0.000 -0.732 -0.114
H3 0.902 0.000 0.561
H4 -0.902 0.000 0.561
H5 0.000 1.897 0.009
H6 0.000 -1.897 0.009

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46421.34361.34361.17142.6320
B21.46421.34361.34362.63201.1714
H31.34361.34361.80382.17172.1717
H41.34361.34361.80382.17172.1717
H51.17142.63202.17172.17173.7940
H62.63201.17142.17172.17173.7940

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 56.982 B1 B2 H4 56.982
B1 B2 H6 173.953 B1 H3 B2 66.036
B1 H4 B2 66.036 B2 B1 H3 56.982
B2 B1 H4 56.982 B2 B1 H5 173.953
H3 B1 H4 84.329 H3 B1 H5 119.271
H3 B2 H4 84.329 H3 B2 H6 119.271
H4 B1 H5 119.271 H4 B2 H6 119.271
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability