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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B2PLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/TZVP
 hartrees
Energy at 0K-65.875566
Energy at 298.15K-65.879521
HF Energy-65.793992
Nuclear repulsion energy31.869337
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 B2PLYP/TZVP
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' 3099 2958 14.60      
2 A' 2999 2862 4.34      
3 A' 2604 2485 110.69      
4 A' 1496 1428 3.40      
5 A' 1349 1288 73.30      
6 A' 1274 1216 22.41      
7 A' 1103 1053 68.99      
8 A' 978 934 12.58      
9 A' 567 541 0.79      
10 A" 3149 3005 17.58      
11 A" 2675 2553 158.36      
12 A" 1450 1384 5.23      
13 A" 1081 1031 19.16      
14 A" 695 663 1.29      
15 A" 159 152 1.65      

Unscaled Zero Point Vibrational Energy (zpe) 12339.2 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 11776.5 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 B2PLYP/TZVP
ABC
3.22336 0.72020 0.65821

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.683 0.000
B2 -0.018 0.872 0.000
H3 1.051 -0.952 0.000
H4 -0.442 -1.141 0.893
H5 -0.442 -1.141 -0.893
H6 0.014 1.485 -1.023
H7 0.014 1.485 1.023

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55451.10221.08961.08962.39702.3970
B21.55452.11392.24222.24221.19301.1930
H31.10222.11391.74981.74982.83912.8391
H41.08962.24221.74981.78633.28212.6679
H51.08962.24221.74981.78632.66793.2821
H62.39701.19302.83913.28212.66792.0459
H72.39701.19302.83912.66793.28212.0459

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.922 C1 B2 H7 120.922
B2 C1 H3 104.147 B2 C1 H4 114.851
B2 C1 H5 114.851 H3 C1 H4 105.943
H3 C1 H5 105.943 H4 C1 H5 110.109
H6 B2 H7 118.064
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.429      
2 B 0.159      
3 H 0.116      
4 H 0.123      
5 H 0.123      
6 H -0.045      
7 H -0.045      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.098 -0.599 0.000 0.607
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.793 -0.172 0.000
y -0.172 -16.713 0.000
z 0.000 0.000 -15.880
Traceless
 xyz
x 2.503 -0.172 0.000
y -0.172 -1.876 0.000
z 0.000 0.000 -0.627
Polar
3z2-r2-1.255
x2-y22.919
xy-0.172
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.116 -0.013 0.000
y -0.013 4.583 0.000
z 0.000 0.000 4.060


<r2> (average value of r2) Å2
<r2> 29.359
(<r2>)1/2 5.418