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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HSEh1PBE/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 HSEh1PBE/3-21G*
 hartrees
Energy at 0K-65.487661
Energy at 298.15K-65.491576
HF Energy-65.487661
Nuclear repulsion energy31.677107
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 HSEh1PBE/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' 3096 2972 8.95      
2 A' 2991 2871 3.58      
3 A' 2598 2494 89.91      
4 A' 1532 1471 5.64      
5 A' 1388 1332 77.17      
6 A' 1257 1206 34.36      
7 A' 1097 1053 84.20      
8 A' 984 945 13.50      
9 A' 630 605 0.69      
10 A" 3147 3021 11.33      
11 A" 2676 2569 131.64      
12 A" 1501 1441 7.46      
13 A" 1087 1043 26.97      
14 A" 700 672 0.01      
15 A" 114 110 3.49      

Unscaled Zero Point Vibrational Energy (zpe) 12398.3 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 11901.1 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 HSEh1PBE/3-21G*
ABC
3.18076 0.71190 0.65080

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 -0.686 0.000
B2 -0.015 0.876 0.000
H3 1.052 -0.989 0.000
H4 -0.456 -1.134 0.898
H5 -0.456 -1.134 -0.898
H6 0.013 1.496 -1.030
H7 0.013 1.496 1.030

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56221.10911.09631.09632.41242.4124
B21.56222.14882.24592.24591.20181.2018
H31.10912.14881.76091.76092.88312.8831
H41.09632.24591.76091.79573.29432.6749
H51.09632.24591.76091.79572.67493.2943
H62.41241.20182.88313.29432.67492.0591
H72.41241.20182.88312.67493.29432.0591

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.022 C1 B2 H7 121.022
B2 C1 H3 105.861 B2 C1 H4 114.156
B2 C1 H5 114.156 H3 C1 H4 105.967
H3 C1 H5 105.967 H4 C1 H5 109.968
H6 B2 H7 117.885
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.911      
2 B 0.217      
3 H 0.232      
4 H 0.223      
5 H 0.223      
6 H 0.008      
7 H 0.008      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.159 -0.732 0.000 0.749
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.693 -0.206 0.000
y -0.206 -16.189 0.000
z 0.000 0.000 -15.614
Traceless
 xyz
x 2.209 -0.206 0.000
y -0.206 -1.535 0.000
z 0.000 0.000 -0.673
Polar
3z2-r2-1.346
x2-y22.496
xy-0.206
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.649 -0.037 0.000
y -0.037 3.933 0.000
z 0.000 0.000 3.432


<r2> (average value of r2) Å2
<r2> 29.417
(<r2>)1/2 5.424