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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: TPSSh/aug-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 TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-65.975884
Energy at 298.15K-65.979819
HF Energy-65.975884
Nuclear repulsion energy31.817364
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/aug-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' 3055 2949 15.61      
2 A' 2956 2853 5.35      
3 A' 2571 2482 114.98      
4 A' 1485 1434 1.82      
5 A' 1333 1286 64.44      
6 A' 1261 1218 22.95      
7 A' 1089 1051 58.26      
8 A' 969 935 14.49      
9 A' 551 532 0.69      
10 A" 3103 2995 20.21      
11 A" 2637 2545 160.43      
12 A" 1438 1388 3.70      
13 A" 1069 1032 17.69      
14 A" 678 654 1.24      
15 A" 161 155 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 12177.8 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 11754.1 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/aug-cc-pVTZ
ABC
3.21166 0.71865 0.65638

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.682 0.000
B2 -0.019 0.873 0.000
H3 1.054 -0.950 0.000
H4 -0.437 -1.147 0.895
H5 -0.437 -1.147 -0.895
H6 0.014 1.487 -1.026
H7 0.014 1.487 1.026

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55541.10551.09201.09202.39972.3997
B21.55542.11502.24862.24861.19591.1959
H31.10552.11501.75051.75052.84092.8409
H41.09202.24861.75051.79053.29092.6751
H51.09202.24861.75051.79052.67513.2909
H62.39971.19592.84093.29092.67512.0519
H72.39971.19592.84092.67513.29092.0519

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.873 C1 B2 H7 120.873
B2 C1 H3 104.003 B2 C1 H4 115.169
B2 C1 H5 115.169 H3 C1 H4 105.612
H3 C1 H5 105.612 H4 C1 H5 110.136
H6 B2 H7 118.156
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.322      
2 B -0.083      
3 H 0.142      
4 H 0.132      
5 H 0.132      
6 H -0.001      
7 H -0.001      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.086 -0.658 0.000 0.664
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 3.808 -0.041 0.000
y -0.041 5.124 0.000
z 0.000 0.000 4.409


<r2> (average value of r2) Å2
<r2> 29.309
(<r2>)1/2 5.414