return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for CH2BH (methyleneborane)

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 C2V 1A1
Energy calculated at HSEh1PBE/6-31G*
 hartrees
Energy at 0K-64.589818
Energy at 298.15K-64.591004
HF Energy-64.589818
Nuclear repulsion energy23.857948
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 A1 3183 3027 9.83      
2 A1 2861 2721 24.33      
3 A1 1536 1461 52.06      
4 A1 1293 1229 5.17      
5 B1 733 697 80.16      
6 B1 633 602 12.85      
7 B2 3252 3093 0.84      
8 B2 921 876 51.21      
9 B2 418 397 4.20      

Unscaled Zero Point Vibrational Energy (zpe) 7414.3 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 7051.0 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
9.91574 0.95182 0.86846

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

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 -0.789
H3 0.000 0.918 1.177
H4 0.000 -0.918 1.177
H5 0.000 0.000 -1.968

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5
C11.38181.08831.08832.5607
B21.38182.16972.16971.1789
H31.08832.16971.83683.2760
H41.08832.16971.83683.2760
H52.56071.17893.27603.2760

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 122.449
B2 C1 H4 122.449 H4 C1 H3 115.102
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 -0.564      
2 B 0.126      
3 H 0.190      
4 H 0.190      
5 H 0.057      


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 -0.445 0.445
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.411 0.000 0.000
y 0.000 -11.222 0.000
z 0.000 0.000 -11.084
Traceless
 xyz
x -4.258 0.000 0.000
y 0.000 2.025 0.000
z 0.000 0.000 2.233
Polar
3z2-r24.466
x2-y2-4.189
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.885 0.000 0.000
y 0.000 2.548 0.000
z 0.000 0.000 5.031


<r2> (average value of r2) Å2
<r2> 21.403
(<r2>)1/2 4.626