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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: TPSSh/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-311G*
 hartrees
Energy at 0K-65.962537
Energy at 298.15K-65.966460
HF Energy-65.962537
Nuclear repulsion energy31.763483
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 TPSSh/6-311G*
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' 3060 2947 21.99      
2 A' 2964 2855 6.84      
3 A' 2563 2468 119.78      
4 A' 1507 1452 3.47      
5 A' 1356 1306 67.75      
6 A' 1258 1212 29.04      
7 A' 1089 1049 70.02      
8 A' 968 933 14.13      
9 A' 560 539 0.54      
10 A" 3108 2994 28.74      
11 A" 2630 2534 171.75      
12 A" 1468 1414 4.92      
13 A" 1075 1035 20.53      
14 A" 682 657 1.01      
15 A" 153 147 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 12220.2 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 11770.5 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 TPSSh/6-311G*
ABC
3.20538 0.71581 0.65386

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.683 0.000
B2 -0.018 0.875 0.000
H3 1.053 -0.960 0.000
H4 -0.440 -1.148 0.895
H5 -0.440 -1.148 -0.895
H6 0.015 1.490 -1.028
H7 0.015 1.490 1.028

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55761.10631.09361.09362.40432.4043
B21.55762.12452.25222.25221.19871.1987
H31.10632.12451.75091.75092.85282.8528
H41.09362.25221.75091.79033.29672.6809
H51.09362.25221.75091.79032.68093.2967
H62.40431.19872.85283.29672.68092.0560
H72.40431.19872.85282.68093.29672.0560

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.901 C1 B2 H7 120.901
B2 C1 H3 104.509 B2 C1 H4 115.189
B2 C1 H5 115.189 H3 C1 H4 105.478
H3 C1 H5 105.478 H4 C1 H5 109.879
H6 B2 H7 118.098
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.805      
2 B 0.067      
3 H 0.214      
4 H 0.215      
5 H 0.215      
6 H 0.047      
7 H 0.047      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.109 -0.648 0.000 0.657
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.993 -0.032 0.000
y -0.032 4.576 0.000
z 0.000 0.000 4.028


<r2> (average value of r2) Å2
<r2> 29.391
(<r2>)1/2 5.421