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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP3=FULL/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 MP3=FULL/3-21G*
 hartrees
Energy at 0K-65.244770
Energy at 298.15K-65.248673
HF Energy-65.077629
Nuclear repulsion energy31.459330
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 MP3=FULL/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' 3092 3092 12.77      
2 A' 3000 3000 3.79      
3 A' 2604 2604 81.72      
4 A' 1566 1566 3.67      
5 A' 1430 1430 47.73      
6 A' 1289 1289 46.81      
7 A' 1124 1124 86.07      
8 A' 964 964 13.43      
9 A' 663 663 0.18      
10 A" 3136 3136 17.35      
11 A" 2678 2678 128.96      
12 A" 1538 1538 4.74      
13 A" 1116 1116 23.95      
14 A" 718 718 0.49      
15 A" 87 87 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 12501.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12501.5 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 MP3=FULL/3-21G*
ABC
3.16855 0.69568 0.63765

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 -0.697 0.000
B2 -0.012 0.888 0.000
H3 1.049 -1.014 0.000
H4 -0.470 -1.133 0.896
H5 -0.470 -1.133 -0.896
H6 0.014 1.510 -1.031
H7 0.014 1.510 1.031

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.58441.10791.09691.09692.43612.4361
B21.58442.17822.25732.25731.20471.2047
H31.10792.17821.76791.76792.91692.9169
H41.09692.25731.76791.79283.30682.6903
H51.09692.25731.76791.79282.69033.3068
H62.43611.20472.91693.30682.69032.0622
H72.43611.20472.91692.69033.30682.0622

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.112 C1 B2 H7 121.112
B2 C1 H3 106.666 B2 C1 H4 113.423
B2 C1 H5 113.423 H3 C1 H4 106.606
H3 C1 H5 106.606 H4 C1 H5 109.612
H6 B2 H7 117.715
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability