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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: QCISD(T)=FULL/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-65.873104
Energy at 298.15K-65.877062
HF Energy-65.470794
Nuclear repulsion energy31.931344
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 QCISD(T)=FULL/cc-pVQZ
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' 3097 3097        
2 A' 2989 2989        
3 A' 2593 2593        
4 A' 1488 1488        
5 A' 1337 1337        
6 A' 1271 1271        
7 A' 1094 1094        
8 A' 983 983        
9 A' 555 555        
10 A" 3150 3150        
11 A" 2666 2666        
12 A" 1442 1442        
13 A" 1074 1074        
14 A" 687 687        
15 A" 170 170        

Unscaled Zero Point Vibrational Energy (zpe) 12297.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12297.5 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 QCISD(T)=FULL/cc-pVQZ
ABC
3.22992 0.72360 0.66091

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.682 0.000
B2 -0.019 0.870 0.000
H3 1.051 -0.940 0.000
H4 -0.437 -1.140 0.893
H5 -0.437 -1.140 -0.893
H6 0.015 1.480 -1.023
H7 0.015 1.480 1.023

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55171.10041.08711.08712.39222.3922
B21.55172.10212.23892.23891.19171.1917
H31.10042.10211.74671.74672.82412.8241
H41.08712.23891.74671.78513.27742.6627
H51.08712.23891.74671.78512.66273.2774
H62.39221.19172.82413.27742.66272.0457
H72.39221.19172.82412.66273.27742.0457

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.818 C1 B2 H7 120.818
B2 C1 H3 103.548 B2 C1 H4 114.951
B2 C1 H5 114.951 H3 C1 H4 105.969
H3 C1 H5 105.969 H4 C1 H5 110.377
H6 B2 H7 118.258
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability