return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CISD/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 CISD/6-31G*
 hartrees
Energy at 0K-65.662160
Energy at 298.15K-65.666096
HF Energy-65.441370
Nuclear repulsion energy31.721446
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 CISD/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' 3153 2919 15.56      
2 A' 3061 2834 3.71      
3 A' 2650 2454 100.35      
4 A' 1550 1435 2.77      
5 A' 1414 1309 57.04      
6 A' 1302 1206 32.98      
7 A' 1130 1046 75.10      
8 A' 992 919 10.42      
9 A' 613 568 0.32      
10 A" 3199 2961 19.46      
11 A" 2722 2520 154.51      
12 A" 1518 1406 4.22      
13 A" 1111 1028 20.95      
14 A" 710 658 0.93      
15 A" 125 116 1.27      

Unscaled Zero Point Vibrational Energy (zpe) 12624.9 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 11688.2 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 CISD/6-31G*
ABC
3.20393 0.71117 0.65078

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 -0.687 0.000
B2 -0.015 0.877 0.000
H3 1.047 -0.983 0.000
H4 -0.457 -1.134 0.894
H5 -0.457 -1.134 -0.894
H6 0.015 1.495 -1.026
H7 0.015 1.495 1.026

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56481.10251.09261.09262.41172.4117
B21.56482.14252.24542.24541.19781.1978
H31.10252.14251.75621.75622.87392.8739
H41.09262.24541.75621.78713.28962.6748
H51.09262.24541.75621.78712.67483.2896
H62.41171.19782.87393.28962.67482.0518
H72.41171.19782.87392.67483.28962.0518

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.037 C1 B2 H7 121.037
B2 C1 H3 105.565 B2 C1 H4 114.150
B2 C1 H5 114.150 H3 C1 H4 106.270
H3 C1 H5 106.270 H4 C1 H5 109.727
H6 B2 H7 117.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability