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: HF/SDD

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/SDD
 hartrees
Energy at 0K-65.421259
Energy at 298.15K-65.425247
HF Energy-65.421259
Nuclear repulsion energy31.710145
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/SDD
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' 3240 2917 38.50      
2 A' 3144 2831 12.60      
3 A' 2666 2401 152.94      
4 A' 1625 1463 7.95      
5 A' 1501 1352 78.81      
6 A' 1306 1176 42.33      
7 A' 1179 1062 71.94      
8 A' 1006 905 12.13      
9 A' 708 637 0.23      
10 A" 3287 2960 49.59      
11 A" 2741 2468 234.28      
12 A" 1592 1434 9.32      
13 A" 1163 1047 23.47      
14 A" 740 666 0.11      
15 A" 106 95 2.19      

Unscaled Zero Point Vibrational Energy (zpe) 13001.5 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 11706.6 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 HF/SDD
ABC
3.24266 0.70314 0.64501

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 -0.694 0.000
B2 -0.012 0.884 0.000
H3 1.036 -1.009 0.000
H4 -0.464 -1.126 0.885
H5 -0.464 -1.126 -0.885
H6 0.010 1.501 -1.021
H7 0.010 1.501 1.021

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57771.09431.08431.08432.42052.4205
B21.57772.16382.24282.24281.19281.1928
H31.09432.16381.74601.74602.89752.8975
H41.08432.24281.74601.77073.28032.6732
H51.08432.24281.74601.77072.67323.2803
H62.42051.19282.89753.28032.67322.0413
H72.42051.19282.89752.67323.28032.0413

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.148 C1 B2 H7 121.148
B2 C1 H3 106.753 B2 C1 H4 113.513
B2 C1 H5 113.513 H3 C1 H4 106.534
H3 C1 H5 106.534 H4 C1 H5 109.475
H6 B2 H7 117.661
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.692      
2 B 0.072      
3 H 0.189      
4 H 0.190      
5 H 0.190      
6 H 0.026      
7 H 0.026      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.114 -0.457 0.000 0.471
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.702 -0.119 0.000
y -0.119 -16.535 0.000
z 0.000 0.000 -15.827
Traceless
 xyz
x 2.479 -0.119 0.000
y -0.119 -1.770 0.000
z 0.000 0.000 -0.709
Polar
3z2-r2-1.418
x2-y22.833
xy-0.119
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.536 0.009 0.000
y 0.009 3.486 0.000
z 0.000 0.000 3.211


<r2> (average value of r2) Å2
<r2> 29.604
(<r2>)1/2 5.441