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 CH2BH (methyleneborane)

using model chemistry: wB97X-D/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/3-21G
 hartrees
Energy at 0K-64.302895
Energy at 298.15K-64.304253
HF Energy-64.302895
Nuclear repulsion energy23.824466
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/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 A1 3164 3164 13.54      
2 A1 2868 2868 19.99      
3 A1 1544 1544 54.20      
4 A1 1339 1339 8.61      
5 B1 831 831 127.35      
6 B1 727 727 1.47      
7 B2 3228 3228 1.76      
8 B2 952 952 72.08      
9 B2 503 503 5.76      

Unscaled Zero Point Vibrational Energy (zpe) 7578.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7578.0 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 wB97X-D/3-21G
ABC
9.96208 0.94782 0.86548

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.593
B2 0.000 0.000 -0.791
H3 0.000 0.916 1.182
H4 0.000 -0.916 1.182
H5 0.000 0.000 -1.970

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5
C11.38431.08921.08922.5631
B21.38432.17562.17561.1788
H31.08922.17561.83253.2825
H41.08922.17561.83253.2825
H52.56311.17883.28253.2825

picture of methyleneborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H5 180.000 B2 C1 H3 122.734
B2 C1 H4 122.734 H4 C1 H3 114.533
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.873      
2 B 0.343      
3 H 0.223      
4 H 0.223      
5 H 0.085      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.331 0.331
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.818 0.000 0.000
y 0.000 -11.387 0.000
z 0.000 0.000 -11.508
Traceless
 xyz
x -4.370 0.000 0.000
y 0.000 2.276 0.000
z 0.000 0.000 2.095
Polar
3z2-r24.189
x2-y2-4.431
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.694 0.000 0.000
y 0.000 2.450 0.000
z 0.000 0.000 4.887


<r2> (average value of r2) Å2
<r2> 21.655
(<r2>)1/2 4.653