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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HF/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 HF/aug-cc-pVTZ
 hartrees
Energy at 0K-65.466994
Energy at 298.15K-65.471000
HF Energy-65.466994
Nuclear repulsion energy31.818350
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 HF/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' 3186 2900 23.38      
2 A' 3099 2821 9.11      
3 A' 2646 2409 132.70      
4 A' 1591 1448 2.05      
5 A' 1445 1316 49.28      
6 A' 1341 1221 41.17      
7 A' 1158 1054 73.76      
8 A' 989 901 12.71      
9 A' 639 582 1.61      
10 A" 3227 2938 31.65      
11 A" 2702 2460 202.88      
12 A" 1552 1413 3.43      
13 A" 1141 1039 21.35      
14 A" 725 660 2.33      
15 A" 135 123 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 12788.0 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 11642.2 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 HF/aug-cc-pVTZ
ABC
3.24388 0.71136 0.65158

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.689 0.000
B2 -0.014 0.879 0.000
H3 1.040 -0.981 0.000
H4 -0.455 -1.131 0.886
H5 -0.455 -1.131 -0.886
H6 0.012 1.492 -1.022
H7 0.012 1.492 1.022

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56771.09401.08341.08342.40922.4092
B21.56772.13772.23962.23961.19231.1923
H31.09402.13771.74411.74412.86692.8669
H41.08342.23961.74411.77153.27692.6679
H51.08342.23961.74411.77152.66793.2769
H62.40921.19232.86693.27692.66792.0434
H72.40921.19232.86692.66793.27692.0434

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.994 C1 B2 H7 120.994
B2 C1 H3 105.477 B2 C1 H4 114.055
B2 C1 H5 114.055 H3 C1 H4 106.453
H3 C1 H5 106.453 H4 C1 H5 109.684
H6 B2 H7 117.948
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.888      
2 B -0.064      
3 H 0.302      
4 H 0.323      
5 H 0.323      
6 H 0.002      
7 H 0.002      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.040 -0.496 0.000 0.497
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.670 -0.144 0.000
y -0.144 -16.696 0.000
z 0.000 0.000 -15.856
Traceless
 xyz
x 2.606 -0.144 0.000
y -0.144 -1.933 0.000
z 0.000 0.000 -0.674
Polar
3z2-r2-1.347
x2-y23.026
xy-0.144
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.582 -0.015 0.000
y -0.015 4.582 0.000
z 0.000 0.000 4.145


<r2> (average value of r2) Å2
<r2> 29.461
(<r2>)1/2 5.428