return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: wB97X-D/CEP-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 wB97X-D/CEP-31G*
 hartrees
Energy at 0K-11.430427
Energy at 298.15K-11.434326
HF Energy-11.430427
Nuclear repulsion energy18.516413
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 wB97X-D/CEP-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' 3129 3129 27.87      
2 A' 3036 3036 5.14      
3 A' 2571 2571 130.79      
4 A' 1499 1499 6.40      
5 A' 1365 1365 93.32      
6 A' 1235 1235 25.22      
7 A' 1088 1088 48.13      
8 A' 962 962 11.25      
9 A' 580 580 1.19      
10 A" 3176 3176 33.96      
11 A" 2632 2632 205.62      
12 A" 1461 1461 8.21      
13 A" 1054 1054 20.06      
14 A" 678 678 0.21      
15 A" 143 143 2.55      

Unscaled Zero Point Vibrational Energy (zpe) 12303.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12303.9 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 wB97X-D/CEP-31G*
ABC
3.14821 0.70161 0.64129

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.694 0.000
B2 -0.017 0.883 0.000
H3 1.060 -0.967 0.000
H4 -0.451 -1.148 0.904
H5 -0.451 -1.148 -0.904
H6 0.014 1.504 -1.035
H7 0.014 1.504 1.035

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57711.11141.10061.10062.42992.4299
B21.57712.14142.26512.26511.20771.2077
H31.11142.14141.76971.76972.87672.8767
H41.10062.26511.76971.80793.31832.6959
H51.10062.26511.76971.80792.69593.3183
H62.42991.20772.87673.31832.69592.0705
H72.42991.20772.87672.69593.31832.0705

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.948 C1 B2 H7 120.948
B2 C1 H3 104.258 B2 C1 H4 114.371
B2 C1 H5 114.371 H3 C1 H4 106.267
H3 C1 H5 106.267 H4 C1 H5 110.436
H6 B2 H7 118.017
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.279      
2 B -0.434      
3 H 0.150      
4 H 0.171      
5 H 0.171      
6 H 0.111      
7 H 0.111      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.127 -0.599 0.000 0.612
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.370 -0.119 0.000
y -0.119 -15.867 0.000
z 0.000 0.000 -14.919
Traceless
 xyz
x 2.024 -0.119 0.000
y -0.119 -1.723 0.000
z 0.000 0.000 -0.301
Polar
3z2-r2-0.602
x2-y22.498
xy-0.119
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.765 -0.009 0.000
y -0.009 3.832 0.000
z 0.000 0.000 3.080


<r2> (average value of r2) Å2
<r2> 26.867
(<r2>)1/2 5.183