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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HF/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/cc-pVTZ
 hartrees
Energy at 0K-65.466661
Energy at 298.15K-65.470668
HF Energy-65.466661
Nuclear repulsion energy31.817545
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 HF/cc-pVTZ
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' 3186 2900 23.77      
2 A' 3099 2820 9.24      
3 A' 2647 2409 133.19      
4 A' 1591 1448 1.94      
5 A' 1447 1317 49.31      
6 A' 1342 1221 40.86      
7 A' 1158 1054 76.61      
8 A' 990 901 13.13      
9 A' 640 582 1.65      
10 A" 3227 2937 32.02      
11 A" 2703 2460 204.43      
12 A" 1553 1413 3.25      
13 A" 1142 1040 22.27      
14 A" 726 661 2.28      
15 A" 136 123 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 12792.3 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 11642.3 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 HF/cc-pVTZ
ABC
3.24387 0.71132 0.65155

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.689 0.000
B2 -0.014 0.879 0.000
H3 1.040 -0.981 0.000
H4 -0.455 -1.131 0.886
H5 -0.455 -1.131 -0.886
H6 0.012 1.493 -1.022
H7 0.012 1.493 1.022

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56771.09401.08351.08352.40932.4093
B21.56772.13782.23962.23961.19231.1923
H31.09402.13781.74421.74422.86712.8671
H41.08352.23961.74421.77173.27692.6680
H51.08352.23961.74421.77172.66803.2769
H62.40931.19232.86713.27692.66802.0432
H72.40931.19232.86712.66803.27692.0432

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.003 C1 B2 H7 121.003
B2 C1 H3 105.481 B2 C1 H4 114.047
B2 C1 H5 114.047 H3 C1 H4 106.456
H3 C1 H5 106.456 H4 C1 H5 109.689
H6 B2 H7 117.931
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.355      
2 B 0.026      
3 H 0.090      
4 H 0.106      
5 H 0.106      
6 H 0.014      
7 H 0.014      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.042 -0.503 0.000 0.504
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.667 -0.149 0.000
y -0.149 -16.719 0.000
z 0.000 0.000 -15.883
Traceless
 xyz
x 2.633 -0.149 0.000
y -0.149 -1.943 0.000
z 0.000 0.000 -0.690
Polar
3z2-r2-1.380
x2-y23.051
xy-0.149
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.300 -0.012 0.000
y -0.012 4.394 0.000
z 0.000 0.000 4.007


<r2> (average value of r2) Å2
<r2> 29.472
(<r2>)1/2 5.429