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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP2/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/aug-cc-pVQZ
 hartrees
Energy at 0K-65.778660
Energy at 298.15K-65.782626
HF Energy-65.470918
Nuclear repulsion energy31.924147
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 MP2/aug-cc-pVQZ
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' 3136 2979 9.47      
2 A' 3022 2870 2.53      
3 A' 2621 2490 109.55      
4 A' 1493 1418 2.38      
5 A' 1334 1267 78.93      
6 A' 1273 1209 13.28      
7 A' 1099 1043 65.74      
8 A' 984 934 12.70      
9 A' 552 524 0.78      
10 A" 3193 3033 10.13      
11 A" 2697 2562 152.71      
12 A" 1447 1374 3.96      
13 A" 1076 1021 18.78      
14 A" 687 653 1.21      
15 A" 175 166 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 12395.0 cm-1
Scaled (by 0.9497) Zero Point Vibrational Energy (zpe) 11771.5 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 MP2/aug-cc-pVQZ
ABC
3.23341 0.72232 0.65983

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.683 0.000
B2 -0.019 0.871 0.000
H3 1.050 -0.938 0.000
H4 -0.436 -1.141 0.892
H5 -0.436 -1.141 -0.892
H6 0.015 1.481 -1.023
H7 0.015 1.481 1.023

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55401.09961.08621.08622.39322.3932
B21.55402.10182.24052.24051.19091.1909
H31.09962.10181.74521.74522.82272.8227
H41.08622.24051.74521.78433.27782.6637
H51.08622.24051.74521.78432.66373.2778
H62.39321.19092.82273.27782.66372.0451
H72.39321.19092.82272.66373.27782.0451

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.780 C1 B2 H7 120.780
B2 C1 H3 103.427 B2 C1 H4 114.971
B2 C1 H5 114.971 H3 C1 H4 105.964
H3 C1 H5 105.964 H4 C1 H5 110.448
H6 B2 H7 118.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability