return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-65.904648
Energy at 298.15K-65.908606
HF Energy-65.904648
Nuclear repulsion energy31.928006
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 B1B95/6-311G**
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' 3101 2977 13.89      
2 A' 2993 2873 4.45      
3 A' 2567 2465 118.02      
4 A' 1477 1418 3.59      
5 A' 1326 1273 80.53      
6 A' 1245 1196 17.39      
7 A' 1079 1036 66.78      
8 A' 983 944 12.71      
9 A' 541 519 0.97      
10 A" 3155 3029 16.05      
11 A" 2638 2532 163.20      
12 A" 1427 1370 4.95      
13 A" 1060 1018 20.52      
14 A" 682 655 0.85      
15 A" 183 175 2.05      

Unscaled Zero Point Vibrational Energy (zpe) 12227.7 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 11739.8 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 B1B95/6-311G**
ABC
3.21997 0.72595 0.66238

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.680 0.000
B2 -0.020 0.867 0.000
H3 1.054 -0.931 0.000
H4 -0.431 -1.145 0.895
H5 -0.431 -1.145 -0.895
H6 0.015 1.481 -1.025
H7 0.015 1.481 1.025

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.54681.10371.08971.08972.39182.3918
B21.54682.09522.24082.24081.19521.1952
H31.10372.09521.74781.74782.81982.8198
H41.08972.24081.74781.79033.28402.6675
H51.08972.24081.74781.79032.66753.2840
H62.39181.19522.81983.28402.66752.0496
H72.39181.19522.81982.66753.28402.0496

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.914 C1 B2 H7 120.914
B2 C1 H3 103.191 B2 C1 H4 115.304
B2 C1 H5 115.304 H3 C1 H4 105.661
H3 C1 H5 105.661 H4 C1 H5 110.468
H6 B2 H7 118.058
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.482      
2 B 0.130      
3 H 0.131      
4 H 0.132      
5 H 0.132      
6 H -0.022      
7 H -0.022      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.121 -0.693 0.000 0.704
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.708 -0.198 0.000
y -0.198 -16.406 0.000
z 0.000 0.000 -15.631
Traceless
 xyz
x 2.311 -0.198 0.000
y -0.198 -1.737 0.000
z 0.000 0.000 -0.574
Polar
3z2-r2-1.148
x2-y22.698
xy-0.198
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.054 -0.026 0.000
y -0.026 4.628 0.000
z 0.000 0.000 4.089


<r2> (average value of r2) Å2
<r2> 29.127
(<r2>)1/2 5.397