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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/3-21G
 hartrees
Energy at 0K-65.248772
Energy at 298.15K-65.252664
HF Energy-65.077411
Nuclear repulsion energy31.393996
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 CCD/3-21G
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' 3058 2974 13.54      
2 A' 2968 2886 3.97      
3 A' 2579 2508 78.03      
4 A' 1555 1512 3.44      
5 A' 1421 1382 45.32      
6 A' 1277 1241 45.78      
7 A' 1115 1084 83.44      
8 A' 956 929 13.22      
9 A' 659 641 0.21      
10 A" 3102 3016 18.22      
11 A" 2652 2579 122.90      
12 A" 1528 1486 4.50      
13 A" 1107 1077 23.13      
14 A" 713 693 0.48      
15 A" 84 82 1.71      

Unscaled Zero Point Vibrational Energy (zpe) 12386.5 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 12043.4 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 CCD/3-21G
ABC
3.15514 0.69293 0.63514

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 -0.698 0.000
B2 -0.012 0.890 0.000
H3 1.050 -1.020 0.000
H4 -0.472 -1.135 0.898
H5 -0.472 -1.135 -0.898
H6 0.015 1.513 -1.033
H7 0.015 1.513 1.033

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.58731.11041.09961.09962.44062.4406
B21.58732.18502.26172.26171.20731.2073
H31.11042.18501.77151.77152.92502.9250
H41.09962.26171.77151.79633.31332.6955
H51.09962.26171.77151.79632.69553.3133
H62.44061.20732.92503.31332.69552.0667
H72.44061.20732.92502.69553.31332.0667

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.102 C1 B2 H7 121.102
B2 C1 H3 106.848 B2 C1 H4 113.409
B2 C1 H5 113.409 H3 C1 H4 106.568
H3 C1 H5 106.568 H4 C1 H5 109.538
H6 B2 H7 117.732
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability