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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-65.671736
Energy at 298.15K-65.675667
HF Energy-65.441326
Nuclear repulsion energy31.716744
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 MP3/6-31G*
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' 3151 2957 13.05      
2 A' 3055 2867 2.73      
3 A' 2645 2482 95.97      
4 A' 1541 1446 3.15      
5 A' 1401 1315 59.87      
6 A' 1295 1216 29.54      
7 A' 1125 1056 72.63      
8 A' 992 931 10.26      
9 A' 606 568 0.33      
10 A" 3198 3002 16.02      
11 A" 2720 2553 144.61      
12 A" 1508 1416 4.55      
13 A" 1105 1037 20.79      
14 A" 708 665 0.73      
15 A" 127 119 1.39      

Unscaled Zero Point Vibrational Energy (zpe) 12587.8 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 11814.9 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 MP3/6-31G*
ABC
3.19832 0.71164 0.65106

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

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 1.049 -0.980 0.000
H4 -0.457 -1.135 0.895
H5 -0.457 -1.135 -0.895
H6 0.016 1.495 -1.026
H7 0.016 1.495 1.026

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56421.10351.09331.09332.41212.4121
B21.56422.13982.24522.24521.19871.1987
H31.10352.13981.75801.75802.87152.8715
H41.09332.24521.75801.78963.29082.6750
H51.09332.24521.75801.78962.67503.2908
H62.41211.19872.87153.29082.67502.0529
H72.41211.19872.87152.67503.29082.0529

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.053 C1 B2 H7 121.053
B2 C1 H3 105.359 B2 C1 H4 114.142
B2 C1 H5 114.142 H3 C1 H4 106.313
H3 C1 H5 106.313 H4 C1 H5 109.854
H6 B2 H7 117.807
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability