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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: TPSSh/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-65.953683
Energy at 298.15K-65.957627
HF Energy-65.953683
Nuclear repulsion energy31.618521
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-pVDZ
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' 3070 2985 16.94      
2 A' 2964 2882 4.43      
3 A' 2581 2510 121.24      
4 A' 1467 1426 0.98      
5 A' 1322 1285 60.86      
6 A' 1245 1211 20.56      
7 A' 1081 1051 59.66      
8 A' 974 947 15.04      
9 A' 541 526 0.91      
10 A" 3124 3038 19.17      
11 A" 2651 2578 173.66      
12 A" 1418 1378 2.47      
13 A" 1060 1030 17.97      
14 A" 675 657 0.94      
15 A" 177 172 1.81      

Unscaled Zero Point Vibrational Energy (zpe) 12174.4 cm-1
Scaled (by 0.9724) Zero Point Vibrational Energy (zpe) 11838.4 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-pVDZ
ABC
3.15165 0.71304 0.65036

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.685 0.000
B2 -0.020 0.875 0.000
H3 1.065 -0.941 0.000
H4 -0.436 -1.157 0.904
H5 -0.436 -1.157 -0.904
H6 0.016 1.495 -1.037
H7 0.016 1.495 1.037

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56001.11551.10151.10152.41382.4138
B21.56002.11602.26272.26271.20821.2082
H31.11552.11601.76591.76592.84762.8476
H41.10152.26271.76591.80843.31702.6932
H51.10152.26271.76591.80842.69323.3170
H62.41381.20822.84763.31702.69322.0731
H72.41381.20822.84762.69323.31702.0731

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.853 C1 B2 H7 120.853
B2 C1 H3 103.279 B2 C1 H4 115.381
B2 C1 H5 115.381 H3 C1 H4 105.598
H3 C1 H5 105.598 H4 C1 H5 110.343
H6 B2 H7 118.176
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.101      
2 B 0.026      
3 H 0.057      
4 H 0.039      
5 H 0.039      
6 H -0.030      
7 H -0.030      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.121 -0.736 0.000 0.746
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 3.043 -0.036 0.000
y -0.036 4.580 0.000
z 0.000 0.000 3.961


<r2> (average value of r2) Å2
<r2> 29.422
(<r2>)1/2 5.424