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

using model chemistry: MP2=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-51.806034
Energy at 298.15K-51.808513
HF Energy-51.637072
Nuclear repulsion energy22.020697
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 MP2=FULL/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 2628 2498 0.00      
2 A1 1237 1175 0.00      
3 A1 863 820 0.00      
4 B1 513 488 0.00      
5 B2 2608 2479 89.02      
6 B2 1171 1113 15.81      
7 E 2690 2557 94.39      
7 E 2690 2557 94.39      
8 E 1015 964 26.20      
8 E 1015 964 26.20      
9 E 428 407 5.48      
9 E 428 407 5.48      

Unscaled Zero Point Vibrational Energy (zpe) 8642.9 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 8214.2 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 MP2=FULL/cc-pVDZ
ABC
3.95491 0.64283 0.64283

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.835
B2 0.000 0.000 -0.835
H3 0.000 1.028 1.472
H4 0.000 -1.028 1.472
H5 1.028 0.000 -1.472
H6 -1.028 0.000 -1.472

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.67051.20931.20932.52582.5258
B21.67052.52582.52581.20931.2093
H31.20932.52582.05653.28313.2831
H41.20932.52582.05653.28313.2831
H52.52581.20933.28313.28312.0565
H62.52581.20933.28313.28312.0565

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 121.758 B1 B2 H6 121.758
B2 B1 H3 121.758 B2 B1 H4 121.758
H3 B1 H4 116.485 H5 B2 H6 116.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability