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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-65.891548
Energy at 298.15K-65.895441
HF Energy-65.891548
Nuclear repulsion energy31.608471
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 BLYP/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' 3002 2979 15.41      
2 A' 2901 2879 5.98      
3 A' 2540 2520 103.12      
4 A' 1457 1446 0.83      
5 A' 1310 1300 58.39      
6 A' 1234 1225 19.90      
7 A' 1074 1066 65.00      
8 A' 954 946 12.60      
9 A' 551 546 0.72      
10 A" 3051 3027 21.68      
11 A" 2608 2588 147.79      
12 A" 1412 1401 2.34      
13 A" 1044 1036 18.04      
14 A" 673 668 0.44      
15 A" 154 153 2.24      

Unscaled Zero Point Vibrational Energy (zpe) 11981.8 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 11889.6 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 BLYP/6-31G**
ABC
3.17001 0.70992 0.64848

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.686 0.000
B2 -0.019 0.878 0.000
H3 1.061 -0.958 0.000
H4 -0.441 -1.156 0.902
H5 -0.441 -1.156 -0.902
H6 0.014 1.497 -1.031
H7 0.014 1.497 1.031

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56341.11421.10131.10132.41452.4145
B21.56342.13032.26412.26411.20341.2034
H31.11422.13031.76351.76352.86172.8617
H41.10132.26411.76351.80453.31402.6947
H51.10132.26411.76351.80452.69473.3140
H62.41451.20342.86173.31402.69472.0621
H72.41451.20342.86172.69473.31402.0621

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.991 C1 B2 H7 120.991
B2 C1 H3 104.160 B2 C1 H4 115.253
B2 C1 H5 115.253 H3 C1 H4 105.493
H3 C1 H5 105.493 H4 C1 H5 110.025
H6 B2 H7 117.919
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.369      
2 B 0.162      
3 H 0.112      
4 H 0.102      
5 H 0.102      
6 H -0.054      
7 H -0.054      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.141 -0.766 0.000 0.779
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.502 -0.203 0.000
y -0.203 -16.028 0.000
z 0.000 0.000 -15.389
Traceless
 xyz
x 2.207 -0.203 0.000
y -0.203 -1.583 0.000
z 0.000 0.000 -0.624
Polar
3z2-r2-1.248
x2-y22.526
xy-0.203
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.840 -0.023 0.000
y -0.023 4.349 0.000
z 0.000 0.000 3.736


<r2> (average value of r2) Å2
<r2> 29.372
(<r2>)1/2 5.420