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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HF/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 HF/6-311G**
 hartrees
Energy at 0K-65.459785
Energy at 298.15K-65.463793
HF Energy-65.459785
Nuclear repulsion energy31.774723
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 HF/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' 3192 2900 26.35      
2 A' 3106 2822 9.40      
3 A' 2640 2398 133.29      
4 A' 1593 1447 2.82      
5 A' 1449 1316 54.21      
6 A' 1337 1215 43.26      
7 A' 1157 1051 83.13      
8 A' 990 900 12.49      
9 A' 640 582 1.66      
10 A" 3234 2938 33.58      
11 A" 2698 2451 209.75      
12 A" 1555 1412 3.96      
13 A" 1142 1037 22.54      
14 A" 726 659 2.36      
15 A" 138 125 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 12797.5 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 11626.5 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 HF/6-311G**
ABC
3.23285 0.70977 0.65008

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.690 0.000
B2 -0.014 0.880 0.000
H3 1.042 -0.982 0.000
H4 -0.456 -1.132 0.888
H5 -0.456 -1.132 -0.888
H6 0.013 1.494 -1.023
H7 0.013 1.494 1.023

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56931.09591.08551.08552.41162.4116
B21.56932.14032.24272.24271.19371.1937
H31.09592.14031.74741.74742.86992.8699
H41.08552.24271.74741.77513.28122.6710
H51.08552.24271.74741.77512.67103.2812
H62.41161.19372.86993.28122.67102.0462
H72.41161.19372.86992.67103.28122.0462

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.976 C1 B2 H7 120.976
B2 C1 H3 105.462 B2 C1 H4 114.051
B2 C1 H5 114.051 H3 C1 H4 106.458
H3 C1 H5 106.458 H4 C1 H5 109.695
H6 B2 H7 117.983
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.406      
2 B 0.204      
3 H 0.096      
4 H 0.100      
5 H 0.100      
6 H -0.047      
7 H -0.047      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.052 -0.457 0.000 0.460
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.686 -0.151 0.000
y -0.151 -16.754 0.000
z 0.000 0.000 -15.930
Traceless
 xyz
x 2.655 -0.151 0.000
y -0.151 -1.945 0.000
z 0.000 0.000 -0.710
Polar
3z2-r2-1.420
x2-y23.067
xy-0.151
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.923 -0.009 0.000
y -0.009 4.206 0.000
z 0.000 0.000 3.936


<r2> (average value of r2) Å2
<r2> 29.541
(<r2>)1/2 5.435