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All results from a given calculation for B2H4 (Diborane(4) D2d)

using model chemistry: CCSD(T)/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at CCSD(T)/daug-cc-pVTZ
 hartrees
Energy at 0K-51.900148
Energy at 298.15K-51.902640
HF Energy-51.651952
Nuclear repulsion energy22.247700
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 CCSD(T)/daug-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 1226 1226        
2 B1 533 533        
3 E 2636 2636        
4 E 2628 2628        
5 E 2578 2578        
6 E 2564 2564        
7 E 1163 1163        
7 E 1013 1013        
8 E 1004 1004        
8 E 866 866        
9 E 468 468        
9 E 402 402        

Unscaled Zero Point Vibrational Energy (zpe) 8540.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8540.8 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 CCSD(T)/daug-cc-pVTZ
ABC
4.03681 0.65687 0.65687

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/daug-cc-pVTZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.826
B2 0.000 0.000 -0.826
H3 0.000 1.018 1.458
H4 0.000 -1.018 1.458
H5 1.018 0.000 -1.458
H6 -1.018 0.000 -1.458

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.65101.19831.19832.50012.5001
B21.65102.50012.50011.19831.1983
H31.19832.50012.03563.25203.2520
H41.19832.50012.03563.25203.2520
H52.50011.19833.25203.25202.0356
H62.50011.19833.25203.25202.0356

picture of Diborane(4) D2d state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H5 121.861 B1 B2 H6 121.861
B2 B1 H3 121.861 B2 B1 H4 121.861
H3 B1 H4 116.277 H5 B2 H6 116.277
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability