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: PBEPBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/STO-3G
 hartrees
Energy at 0K-63.766285
Energy at 298.15K-63.767455
HF Energy-63.766285
Nuclear repulsion energy23.931144
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 PBEPBE/STO-3G
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 3311 3025 61.07      
2 A1 3103 2835 8.98      
3 A1 1639 1497 47.85      
4 A1 1395 1274 3.87      
5 B1 800 731 36.57      
6 B1 673 615 9.94      
7 B2 3420 3124 15.37      
8 B2 959 876 80.70      
9 B2 478 436 2.58      

Unscaled Zero Point Vibrational Energy (zpe) 7888.1 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 7206.6 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 PBEPBE/STO-3G
ABC
9.82868 0.96497 0.87870

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.583
B2 0.000 0.000 -0.784
H3 0.000 0.922 1.187
H4 0.000 -0.922 1.187
H5 0.000 0.000 -1.953

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5
C11.36671.10271.10272.5359
B21.36672.17622.17621.1692
H31.10272.17621.84493.2728
H41.10272.17621.84493.2728
H52.53591.16923.27283.2728

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 123.227
B2 C1 H4 123.227 H4 C1 H3 113.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.342      
2 B 0.169      
3 H 0.093      
4 H 0.093      
5 H -0.014      


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 -0.171 0.171
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.120 0.000 0.000
y 0.000 -10.390 0.000
z 0.000 0.000 -10.972
Traceless
 xyz
x -2.439 0.000 0.000
y 0.000 1.656 0.000
z 0.000 0.000 0.783
Polar
3z2-r21.566
x2-y2-2.730
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.487 0.000 0.000
y 0.000 1.430 0.000
z 0.000 0.000 2.982


<r2> (average value of r2) Å2
<r2> 20.624
(<r2>)1/2 4.541