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

using model chemistry: B2PLYP=FULL/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B2PLYP=FULL/TZVP
 hartrees
Energy at 0K-51.984757
Energy at 298.15K-51.987231
HF Energy-51.917001
Nuclear repulsion energy22.376603
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/TZVP
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 2605 2486 0.00      
2 A1 1227 1170 0.00      
3 A1 871 831 0.00      
4 B1 549 523 0.00      
5 B2 2586 2467 71.13      
6 B2 1165 1112 5.77      
7 E 2656 2534 86.93      
7 E 2656 2534 86.93      
8 E 1009 963 27.98      
8 E 1009 963 27.98      
9 E 412 393 4.30      
9 E 412 393 4.30      

Unscaled Zero Point Vibrational Energy (zpe) 8577.7 cm-1
Scaled (by 0.9542) Zero Point Vibrational Energy (zpe) 8184.9 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/TZVP
ABC
4.07360 0.66613 0.66613

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.818
B2 0.000 0.000 -0.818
H3 0.000 1.013 1.451
H4 0.000 -1.013 1.451
H5 1.013 0.000 -1.451
H6 -1.013 0.000 -1.451

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.63681.19461.19462.48552.4855
B21.63682.48552.48551.19461.1946
H31.19462.48552.02643.23683.2368
H41.19462.48552.02643.23683.2368
H52.48551.19463.23683.23682.0264
H62.48551.19463.23683.23682.0264

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 121.987 B1 B2 H6 121.987
B2 B1 H3 121.987 B2 B1 H4 121.987
H3 B1 H4 116.025 H5 B2 H6 116.025
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability