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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: TPSSh/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-65.980481
Energy at 298.15K-65.984416
HF Energy-65.980481
Nuclear repulsion energy31.840364
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/cc-pVQZ
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' 3054 3054 15.84      
2 A' 2953 2953 5.67      
3 A' 2574 2574 112.91      
4 A' 1487 1487 1.77      
5 A' 1334 1334 64.85      
6 A' 1263 1263 22.31      
7 A' 1090 1090 58.86      
8 A' 970 970 14.21      
9 A' 550 550 0.71      
10 A" 3103 3103 20.49      
11 A" 2639 2639 157.39      
12 A" 1439 1439 3.63      
13 A" 1071 1071 18.02      
14 A" 680 680 1.08      
15 A" 162 162 1.37      

Unscaled Zero Point Vibrational Energy (zpe) 12183.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12183.7 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/cc-pVQZ
ABC
3.21705 0.71962 0.65732

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.682 0.000
B2 -0.019 0.872 0.000
H3 1.053 -0.949 0.000
H4 -0.437 -1.146 0.895
H5 -0.437 -1.146 -0.895
H6 0.014 1.486 -1.025
H7 0.014 1.486 1.025

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55431.10491.09131.09132.39792.3979
B21.55432.11322.24722.24721.19471.1947
H31.10492.11321.74951.74952.83832.8383
H41.09132.24721.74951.78943.28862.6734
H51.09132.24721.74951.78942.67343.2886
H62.39791.19472.83833.28862.67342.0495
H72.39791.19472.83832.67343.28862.0495

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.888 C1 B2 H7 120.888
B2 C1 H3 103.966 B2 C1 H4 115.180
B2 C1 H5 115.180 H3 C1 H4 105.612
H3 C1 H5 105.612 H4 C1 H5 110.143
H6 B2 H7 118.126
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.659      
2 B 0.554      
3 H 0.152      
4 H 0.168      
5 H 0.168      
6 H -0.192      
7 H -0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.088 -0.660 0.000 0.666
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 3.655 -0.033 0.000
y -0.033 4.992 0.000
z 0.000 0.000 4.298


<r2> (average value of r2) Å2
<r2> 29.264
(<r2>)1/2 5.410