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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-65.834246
Energy at 298.15K-65.838158
HF Energy-65.834246
Nuclear repulsion energy31.743594
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' 3114 2979 15.05      
2 A' 3011 2881 2.50      
3 A' 2587 2475 108.21      
4 A' 1520 1454 5.73      
5 A' 1387 1327 75.73      
6 A' 1266 1211 31.05      
7 A' 1101 1053 78.02      
8 A' 993 950 12.01      
9 A' 625 598 0.50      
10 A" 3167 3029 17.95      
11 A" 2664 2548 165.16      
12 A" 1484 1420 7.50      
13 A" 1090 1043 25.34      
14 A" 704 673 0.17      
15 A" 112 107 2.94      

Unscaled Zero Point Vibrational Energy (zpe) 12411.7 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 11873.0 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
3.19265 0.71543 0.65402

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 -0.015 -0.684 0.000
B2 -0.015 0.873 0.000
H3 1.050 -0.986 0.000
H4 -0.456 -1.133 0.896
H5 -0.456 -1.133 -0.896
H6 0.013 1.494 -1.028
H7 0.013 1.494 1.028

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55721.10661.09491.09492.40842.4084
B21.55722.14252.24102.24101.20081.2008
H31.10662.14251.75831.75832.87792.8779
H41.09492.24101.75831.79183.28942.6716
H51.09492.24101.75831.79182.67163.2894
H62.40841.20082.87793.28942.67162.0551
H72.40841.20082.87792.67163.28942.0551

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.128 C1 B2 H7 121.128
B2 C1 H3 105.843 B2 C1 H4 114.204
B2 C1 H5 114.204 H3 C1 H4 106.007
H3 C1 H5 106.007 H4 C1 H5 109.816
H6 B2 H7 117.678
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 -0.695      
2 B 0.231      
3 H 0.185      
4 H 0.178      
5 H 0.178      
6 H -0.038      
7 H -0.038      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.154 -0.724 0.000 0.740
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.476 -0.194 0.000
y -0.194 -16.052 0.000
z 0.000 0.000 -15.452
Traceless
 xyz
x 2.276 -0.194 0.000
y -0.194 -1.588 0.000
z 0.000 0.000 -0.688
Polar
3z2-r2-1.376
x2-y22.576
xy-0.194
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.666 -0.023 0.000
y -0.023 4.105 0.000
z 0.000 0.000 3.660


<r2> (average value of r2) Å2
<r2> 29.226
(<r2>)1/2 5.406