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: MP4/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/cc-pVDZ
 hartrees
Energy at 0K-65.722909
Energy at 298.15K-65.726857
HF Energy-65.446148
Nuclear repulsion energy31.446554
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 MP4/cc-pVDZ
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' 3110 3007        
2 A' 3000 2901        
3 A' 2589 2503        
4 A' 1470 1421        
5 A' 1326 1283        
6 A' 1255 1214        
7 A' 1090 1054        
8 A' 970 938        
9 A' 549 531        
10 A" 3166 3061        
11 A" 2663 2574        
12 A" 1424 1377        
13 A" 1063 1027        
14 A" 679 656        
15 A" 174 168        

Unscaled Zero Point Vibrational Energy (zpe) 12264.1 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 11858.1 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 MP4/cc-pVDZ
ABC
3.12326 0.70289 0.64175

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.692 0.000
B2 -0.019 0.882 0.000
H3 1.068 -0.952 0.000
H4 -0.446 -1.155 0.907
H5 -0.446 -1.155 -0.907
H6 0.017 1.503 -1.040
H7 0.017 1.503 1.040

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57421.11721.10451.10452.42992.4299
B21.57422.13192.27062.27061.21231.2123
H31.11722.13191.77631.77632.86622.8662
H41.10452.27061.77631.81483.32812.7019
H51.10452.27061.77631.81482.70193.3281
H62.42991.21232.86623.32812.70192.0806
H72.42991.21232.86622.70193.32812.0806

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.835 C1 B2 H7 120.835
B2 C1 H3 103.454 B2 C1 H4 114.779
B2 C1 H5 114.779 H3 C1 H4 106.164
H3 C1 H5 106.164 H4 C1 H5 110.482
H6 B2 H7 118.213
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability