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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: QCISD(T)=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 QCISD(T)=FULL/6-31G*
 hartrees
Energy at 0K-65.692779
Energy at 298.15K-65.696705
HF Energy-65.441134
Nuclear repulsion energy31.665689
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 QCISD(T)=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' 3097 3097        
2 A' 3000 3000        
3 A' 2609 2609        
4 A' 1525 1525        
5 A' 1386 1386        
6 A' 1281 1281        
7 A' 1111 1111        
8 A' 984 984        
9 A' 592 592        
10 A" 3144 3144        
11 A" 2681 2681        
12 A" 1492 1492        
13 A" 1093 1093        
14 A" 701 701        
15 A" 135 135        

Unscaled Zero Point Vibrational Energy (zpe) 12415.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12415.4 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 QCISD(T)=FULL/6-31G*
ABC
3.18011 0.71092 0.65009

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=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 -0.976 0.000
H4 -0.455 -1.139 0.898
H5 -0.455 -1.139 -0.898
H6 0.016 1.496 -1.029
H7 0.016 1.496 1.029

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56401.10751.09691.09692.41412.4141
B21.56402.13952.24982.24981.20171.2017
H31.10752.13951.76311.76312.87212.8721
H41.09692.24981.76311.79573.29832.6800
H51.09692.24981.76311.79572.68003.2983
H62.41411.20172.87213.29832.68002.0584
H72.41411.20172.87212.68003.29832.0584

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.032 C1 B2 H7 121.032
B2 C1 H3 105.137 B2 C1 H4 114.303
B2 C1 H5 114.303 H3 C1 H4 106.223
H3 C1 H5 106.223 H4 C1 H5 109.879
H6 B2 H7 117.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability