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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HSEh1PBE/6-31G*

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/6-31G*
 hartrees
Energy at 0K-65.847993
Energy at 298.15K-65.851905
HF Energy-65.847993
Nuclear repulsion energy31.759934
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/6-31G*
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' 3117 2964 12.55      
2 A' 3014 2867 3.43      
3 A' 2601 2474 106.57      
4 A' 1504 1430 2.70      
5 A' 1359 1292 69.55      
6 A' 1255 1193 23.16      
7 A' 1088 1035 73.29      
8 A' 981 933 11.00      
9 A' 564 536 0.70      
10 A" 3168 3013 14.86      
11 A" 2675 2544 153.74      
12 A" 1466 1394 4.63      
13 A" 1068 1016 21.19      
14 A" 682 649 0.36      
15 A" 151 144 2.21      

Unscaled Zero Point Vibrational Energy (zpe) 12345.9 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 11741.0 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/6-31G*
ABC
3.19480 0.71674 0.65457

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.684 0.000
B2 -0.018 0.873 0.000
H3 1.054 -0.957 0.000
H4 -0.443 -1.145 0.897
H5 -0.443 -1.145 -0.897
H6 0.015 1.492 -1.029
H7 0.015 1.492 1.029

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55641.10601.09451.09452.40662.4066
B21.55642.12092.24852.24851.20121.2012
H31.10602.12091.75511.75512.85222.8522
H41.09452.24851.75511.79373.29692.6793
H51.09452.24851.75511.79372.67933.2969
H62.40661.20122.85223.29692.67932.0580
H72.40661.20122.85222.67933.29692.0580

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.011 C1 B2 H7 121.011
B2 C1 H3 104.333 B2 C1 H4 114.916
B2 C1 H5 114.916 H3 C1 H4 105.799
H3 C1 H5 105.799 H4 C1 H5 110.055
H6 B2 H7 117.877
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.660      
2 B 0.123      
3 H 0.190      
4 H 0.185      
5 H 0.185      
6 H -0.012      
7 H -0.012      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.136 -0.710 0.000 0.723
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.429 -0.183 0.000
y -0.183 -16.007 0.000
z 0.000 0.000 -15.304
Traceless
 xyz
x 2.226 -0.183 0.000
y -0.183 -1.640 0.000
z 0.000 0.000 -0.586
Polar
3z2-r2-1.173
x2-y22.577
xy-0.183
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.730 -0.015 0.000
y -0.015 4.148 0.000
z 0.000 0.000 3.664


<r2> (average value of r2) Å2
<r2> 29.149
(<r2>)1/2 5.399