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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-65.712727
Energy at 298.15K-65.716695
HF Energy-65.464559
Nuclear repulsion energy31.863790
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/TZVP
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' 3149 2985 12.44      
2 A' 3040 2881 2.44      
3 A' 2640 2503 109.26      
4 A' 1503 1424 3.52      
5 A' 1355 1284 82.18      
6 A' 1293 1226 17.49      
7 A' 1117 1059 71.77      
8 A' 987 935 12.14      
9 A' 558 529 1.10      
10 A" 3203 3036 13.68      
11 A" 2717 2576 156.47      
12 A" 1456 1380 5.07      
13 A" 1091 1034 18.97      
14 A" 697 661 1.61      
15 A" 166 157 1.35      

Unscaled Zero Point Vibrational Energy (zpe) 12485.4 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 11834.9 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 MP2/TZVP
ABC
3.22066 0.71929 0.65756

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.685 0.000
B2 -0.018 0.872 0.000
H3 1.052 -0.943 0.000
H4 -0.443 -1.139 0.893
H5 -0.443 -1.139 -0.893
H6 0.016 1.485 -1.023
H7 0.016 1.485 1.023

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55731.10091.08851.08852.39892.3989
B21.55732.10752.24182.24181.19271.1927
H31.10092.10751.75251.75252.83122.8312
H41.08852.24181.75251.78653.28152.6671
H51.08852.24181.75251.78652.66713.2815
H62.39891.19272.83123.28152.66712.0458
H72.39891.19272.83122.66713.28152.0458

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.895 C1 B2 H7 120.895
B2 C1 H3 103.569 B2 C1 H4 114.683
B2 C1 H5 114.683 H3 C1 H4 106.336
H3 C1 H5 106.336 H4 C1 H5 110.292
H6 B2 H7 118.106
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability