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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HSEh1PBE/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 HSEh1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-65.873389
Energy at 298.15K-65.877330
HF Energy-65.873389
Nuclear repulsion energy31.893718
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 HSEh1PBE/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' 3088 2970 11.65      
2 A' 2984 2870 3.90      
3 A' 2565 2467 110.02      
4 A' 1468 1411 2.81      
5 A' 1317 1267 72.90      
6 A' 1241 1194 15.82      
7 A' 1079 1037 57.98      
8 A' 979 942 11.88      
9 A' 547 526 0.57      
10 A" 3140 3020 13.17      
11 A" 2634 2534 150.18      
12 A" 1419 1364 4.81      
13 A" 1057 1017 18.36      
14 A" 679 653 0.89      
15 A" 169 163 1.54      

Unscaled Zero Point Vibrational Energy (zpe) 12182.2 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 11716.8 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 HSEh1PBE/aug-cc-pVTZ
ABC
3.21352 0.72429 0.66086

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.680 0.000
B2 -0.019 0.868 0.000
H3 1.054 -0.939 0.000
H4 -0.434 -1.144 0.895
H5 -0.434 -1.144 -0.895
H6 0.014 1.484 -1.026
H7 0.014 1.484 1.026

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.54821.10401.09051.09052.39542.3954
B21.54822.10162.24142.24141.19751.1975
H31.10402.10161.74861.74862.82922.8292
H41.09052.24141.74861.79083.28682.6696
H51.09052.24141.74861.79082.66963.2868
H62.39541.19752.82923.28682.66962.0529
H72.39541.19752.82922.66963.28682.0529

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.950 C1 B2 H7 120.950
B2 C1 H3 103.545 B2 C1 H4 115.203
B2 C1 H5 115.203 H3 C1 H4 105.649
H3 C1 H5 105.649 H4 C1 H5 110.393
H6 B2 H7 117.998
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.661      
2 B -0.065      
3 H 0.249      
4 H 0.234      
5 H 0.234      
6 H 0.004      
7 H 0.004      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.098 -0.694 0.000 0.701
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.739 -0.184 0.000
y -0.184 -16.456 0.000
z 0.000 0.000 -15.661
Traceless
 xyz
x 2.319 -0.184 0.000
y -0.184 -1.756 0.000
z 0.000 0.000 -0.563
Polar
3z2-r2-1.127
x2-y22.716
xy-0.184
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.799 -0.038 0.000
y -0.038 5.082 0.000
z 0.000 0.000 4.401


<r2> (average value of r2) Å2
<r2> 29.198
(<r2>)1/2 5.404