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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G*
 hartrees
Energy at 0K-65.683306
Energy at 298.15K-65.687227
HF Energy-65.441134
Nuclear repulsion energy31.642087
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 CCSD(T)/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 2979        
2 A' 3000 2887        
3 A' 2609 2510        
4 A' 1524 1467        
5 A' 1386 1334        
6 A' 1281 1232        
7 A' 1111 1069        
8 A' 983 946        
9 A' 594 571        
10 A" 3144 3025        
11 A" 2681 2579        
12 A" 1492 1435        
13 A" 1093 1052        
14 A" 700 674        
15 A" 133 128        

Unscaled Zero Point Vibrational Energy (zpe) 12413.6 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 11943.2 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 CCSD(T)/6-31G*
ABC
3.17804 0.70933 0.64875

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.016 -0.688 0.000
B2 -0.016 0.878 0.000
H3 1.053 -0.979 0.000
H4 -0.456 -1.139 0.898
H5 -0.456 -1.139 -0.898
H6 0.016 1.498 -1.030
H7 0.016 1.498 1.030

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56611.10771.09721.09722.41622.4162
B21.56612.14242.25132.25131.20201.2020
H31.10772.14241.76381.76382.87542.8754
H41.09722.25131.76381.79603.29992.6816
H51.09722.25131.76381.79602.68163.2999
H62.41621.20202.87543.29992.68162.0590
H72.41621.20202.87542.68163.29992.0590

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.027 C1 B2 H7 121.027
B2 C1 H3 105.209 B2 C1 H4 114.256
B2 C1 H5 114.256 H3 C1 H4 106.250
H3 C1 H5 106.250 H4 C1 H5 109.864
H6 B2 H7 117.856
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability