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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP4=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at MP4=FULL/3-21G
 hartrees
Energy at 0K-52.667477
Energy at 298.15K-52.673403
HF Energy-52.497237
Nuclear repulsion energy31.845110
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 MP4=FULL/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 2640 2584 0.00      
2 Ag 2172 2126 0.00      
3 Ag 1214 1188 0.00      
4 Ag 806 789 0.00      
5 Au 871 853 0.00      
6 B1g 2732 2674 0.00      
7 B1g 917 898 0.00      
8 B1u 1938 1897 0.00      
9 B1u 975 954 0.00      
10 B2g 1879 1840 0.00      
11 B2g 800 783 0.00      
12 B2u 2742 2684 0.00      
13 B2u 1013 992 0.00      
14 B2u 406 398 0.00      
15 B3g 1087 1064 0.00      
16 B3u 2629 2573 0.00      
17 B3u 1765 1728 0.00      
18 B3u 1214 1189 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 13899.4 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 13604.7 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 MP4=FULL/3-21G
ABC
2.65116 0.59931 0.55031

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.891 0.000 0.000
B2 -0.891 0.000 0.000
H3 0.000 0.000 0.978
H4 0.000 0.000 -0.978
H5 1.471 1.048 0.000
H6 1.471 -1.048 0.000
H7 -1.471 1.048 0.000
H8 -1.471 -1.048 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.78221.32291.32291.19801.19802.58392.5839
B21.78221.32291.32292.58392.58391.19801.1980
H31.32291.32291.95552.05372.05372.05372.0537
H41.32291.32291.95552.05372.05372.05372.0537
H51.19802.58392.05372.05372.09702.94113.6121
H61.19802.58392.05372.05372.09703.61212.9411
H72.58391.19802.05372.05372.94113.61212.0970
H82.58391.19802.05372.05373.61212.94112.0970

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.691 B1 H4 B2 84.691
H3 B1 H4 95.309 H3 B1 H5 109.016
H3 B1 H6 109.016 H3 B2 H4 95.309
H3 B2 H7 109.016 H3 B2 H8 109.016
H4 B1 H5 109.016 H4 B1 H6 109.016
H4 B2 H7 109.016 H4 B2 H8 109.016
H5 B1 H6 122.144 H7 B2 H8 122.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability