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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-65.556444
Energy at 298.15K-65.560378
HF Energy-65.420294
Nuclear repulsion energy31.353013
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/SDD
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' 3089 2982 26.29      
2 A' 2979 2876 5.84      
3 A' 2569 2480 129.15      
4 A' 1517 1464 6.79      
5 A' 1400 1352 75.33      
6 A' 1242 1199 35.21      
7 A' 1122 1083 55.74      
8 A' 966 932 13.21      
9 A' 633 611 1.05      
10 A" 3144 3035 33.77      
11 A" 2659 2567 183.49      
12 A" 1475 1423 8.63      
13 A" 1100 1062 20.48      
14 A" 701 676 0.00      
15 A" 127 123 3.09      

Unscaled Zero Point Vibrational Energy (zpe) 12360.8 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 11931.9 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/SDD
ABC
3.14592 0.69179 0.63379

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.698 0.000
B2 -0.014 0.892 0.000
H3 1.059 -0.999 0.000
H4 -0.462 -1.147 0.903
H5 -0.462 -1.147 -0.903
H6 0.012 1.510 -1.033
H7 0.012 1.510 1.033

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.58951.11501.10311.10312.43782.4378
B21.58952.17452.27432.27431.20451.2045
H31.11502.17451.77471.77472.90882.9088
H41.10312.27431.77471.80523.32172.7025
H51.10312.27431.77471.80522.70253.3217
H62.43781.20452.90883.32172.70252.0666
H72.43781.20452.90882.70253.32172.0666

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.890 C1 B2 H7 120.890
B2 C1 H3 105.692 B2 C1 H4 114.048
B2 C1 H5 114.048 H3 C1 H4 106.275
H3 C1 H5 106.275 H4 C1 H5 109.810
H6 B2 H7 118.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability