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

using model chemistry: B2PLYP=FULL/cc-pVTZ

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=FULL/cc-pVTZ
 hartrees
Energy at 0K-51.992858
Energy at 298.15K-51.995789
HF Energy-51.906898
Nuclear repulsion energy24.948457
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=FULL/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 A1 2855 2729 0.05      
2 A1 2133 2039 15.10      
3 A1 1368 1308 2.63      
4 A1 1128 1079 2.18      
5 A1 737 704 3.46      
6 A2 1307 1250 0.00      
7 A2 676 646 0.00      
8 B1 2131 2037 44.37      
9 B1 807 771 2.04      
10 B2 2814 2690 35.30      
11 B2 1377 1316 198.19      
12 B2 558 533 32.04      

Unscaled Zero Point Vibrational Energy (zpe) 8946.2 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 8550.8 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=FULL/cc-pVTZ
ABC
6.80481 0.85432 0.82262

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.728 -0.114
B2 0.000 -0.728 -0.114
H3 0.896 0.000 0.565
H4 -0.896 0.000 0.565
H5 0.000 1.890 0.003
H6 0.000 -1.890 0.003

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45631.33961.33961.16762.6207
B21.45631.33961.33962.62071.1676
H31.33961.33961.79242.16582.1658
H41.33961.33961.79242.16582.1658
H51.16762.62072.16582.16583.7798
H62.62071.16762.16582.16583.7798

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 57.074 B1 B2 H4 57.074
B1 B2 H6 174.245 B1 H3 B2 65.851
B1 H4 B2 65.851 B2 B1 H3 57.074
B2 B1 H4 57.074 B2 B1 H5 174.245
H3 B1 H4 83.977 H3 B1 H5 119.339
H3 B2 H4 83.977 H3 B2 H6 119.339
H4 B1 H5 119.339 H4 B2 H6 119.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability