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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCSD/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 CCSD/cc-pVDZ
 hartrees
Energy at 0K-65.718244
Energy at 298.15K-65.722188
HF Energy-65.446225
Nuclear repulsion energy31.454213
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/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' 3115 2950 15.11      
2 A' 3012 2853 3.31      
3 A' 2589 2452 107.21      
4 A' 1477 1399 1.52      
5 A' 1337 1266 62.39      
6 A' 1260 1194 23.42      
7 A' 1094 1036 65.94      
8 A' 972 921 11.44      
9 A' 561 532 0.71      
10 A" 3166 3000 16.73      
11 A" 2659 2519 162.23      
12 A" 1433 1357 2.59      
13 A" 1068 1011 19.65      
14 A" 682 647 1.61      
15 A" 163 154 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 12293.2 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 11645.3 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/cc-pVDZ
ABC
3.12753 0.70268 0.64177

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.692 0.000
B2 -0.018 0.882 0.000
H3 1.065 -0.960 0.000
H4 -0.449 -1.152 0.906
H5 -0.449 -1.152 -0.906
H6 0.015 1.504 -1.040
H7 0.015 1.504 1.040

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57431.11571.10381.10382.42992.4299
B21.57432.13702.26852.26851.21201.2120
H31.11572.13701.77521.77522.87292.8729
H41.10382.26851.77521.81153.32522.6999
H51.10382.26851.77521.81152.69993.3252
H62.42991.21202.87293.32522.69992.0799
H72.42991.21202.87292.69993.32522.0799

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.854 C1 B2 H7 120.854
B2 C1 H3 103.893 B2 C1 H4 114.645
B2 C1 H5 114.645 H3 C1 H4 106.219
H3 C1 H5 106.219 H4 C1 H5 110.284
H6 B2 H7 118.194
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability