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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP4=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4=FULL/6-31G*
 hartrees
Energy at 0K-65.690852
Energy at 298.15K-65.694784
HF Energy-65.441172
Nuclear repulsion energy31.681734
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3109 2990        
2 A' 3010 2894        
3 A' 2622 2522        
4 A' 1528 1469        
5 A' 1388 1335        
6 A' 1285 1236        
7 A' 1115 1073        
8 A' 986 948        
9 A' 593 570        
10 A" 3158 3037        
11 A" 2697 2594        
12 A" 1495 1437        
13 A" 1096 1054        
14 A" 703 676        
15 A" 137 132        

Unscaled Zero Point Vibrational Energy (zpe) 12461.3 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 11982.8 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 MP4=FULL/6-31G*
ABC
3.18451 0.71147 0.65064

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.016 -0.687 0.000
B2 -0.016 0.877 0.000
H3 1.053 -0.975 0.000
H4 -0.455 -1.138 0.897
H5 -0.455 -1.138 -0.897
H6 0.016 1.496 -1.028
H7 0.016 1.496 1.028

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56361.10701.09621.09622.41292.4129
B21.56362.13792.24902.24901.20061.2006
H31.10702.13791.76221.76222.86982.8698
H41.09622.24901.76221.79483.29662.6790
H51.09622.24901.76221.79482.67903.2966
H62.41291.20062.86983.29662.67902.0565
H72.41291.20062.86982.67903.29662.0565

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.036 C1 B2 H7 121.036
B2 C1 H3 105.079 B2 C1 H4 114.318
B2 C1 H5 114.318 H3 C1 H4 106.225
H3 C1 H5 106.225 H4 C1 H5 109.896
H6 B2 H7 117.835
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability