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All results from a given calculation for CH3BH2 (methylborane)

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 CS 1A'
Energy calculated at MP4=FULL/3-21G
 hartrees
Energy at 0K-65.253202
Energy at 298.15K-65.257095
HF Energy-65.077389
Nuclear repulsion energy31.394065
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 A' 3051 2987        
2 A' 2958 2895        
3 A' 2580 2525        
4 A' 1551 1518        
5 A' 1415 1385        
6 A' 1278 1251        
7 A' 1114 1091        
8 A' 955 935        
9 A' 653 639        
10 A" 3097 3031        
11 A" 2654 2598        
12 A" 1524 1492        
13 A" 1105 1082        
14 A" 712 697        
15 A" 88 86        

Unscaled Zero Point Vibrational Energy (zpe) 12367.0 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 12104.8 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/3-21G
ABC
3.15352 0.69330 0.63533

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 -0.697 0.000
B2 -0.013 0.889 0.000
H3 1.052 -1.017 0.000
H4 -0.470 -1.136 0.899
H5 -0.470 -1.136 -0.899
H6 0.015 1.513 -1.033
H7 0.015 1.513 1.033

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.58691.11131.10001.10002.43992.4399
B21.58692.18332.26242.26241.20701.2070
H31.11132.18331.77171.77172.92252.9225
H41.10002.26241.77171.79863.31402.6955
H51.10002.26241.77171.79862.69553.3140
H62.43991.20702.92253.31402.69552.0665
H72.43991.20702.92252.69553.31402.0665

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.088 C1 B2 H7 121.088
B2 C1 H3 106.703 B2 C1 H4 113.469
B2 C1 H5 113.469 H3 C1 H4 106.494
H3 C1 H5 106.494 H4 C1 H5 109.682
H6 B2 H7 117.758
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability