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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: LSDA/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/6-311G*
 hartrees
Energy at 0K-65.543510
Energy at 298.15K-65.547409
HF Energy-65.543510
Nuclear repulsion energy31.919094
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 LSDA/6-311G*
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' 3015 2966 8.31      
2 A' 2898 2851 6.39      
3 A' 2498 2457 96.43      
4 A' 1423 1400 8.21      
5 A' 1283 1263 105.13      
6 A' 1182 1163 6.32      
7 A' 1034 1017 51.57      
8 A' 981 965 12.70      
9 A' 489 481 2.05      
10 A" 3074 3024 7.91      
11 A" 2576 2534 126.90      
12 A" 1372 1349 9.01      
13 A" 1023 1006 20.95      
14 A" 660 649 0.20      
15 A" 199 196 4.31      

Unscaled Zero Point Vibrational Energy (zpe) 11852.6 cm-1
Scaled (by 0.9837) Zero Point Vibrational Energy (zpe) 11659.4 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 LSDA/6-311G*
ABC
3.16699 0.73598 0.66869

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.025 -0.671 0.000
B2 -0.025 0.858 0.000
H3 1.068 -0.900 0.000
H4 -0.416 -1.159 0.905
H5 -0.416 -1.159 -0.905
H6 0.017 1.478 -1.036
H7 0.017 1.478 1.036

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.52951.11621.10021.10022.38592.3859
B21.52952.06992.24532.24531.20751.2075
H31.11622.06991.75711.75712.79822.7982
H41.10022.24531.75711.81083.30262.6752
H51.10022.24531.75711.81082.67523.3026
H62.38591.20752.79823.30262.67522.0712
H72.38591.20752.79822.67523.30262.0712

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.871 C1 B2 H7 120.871
B2 C1 H3 101.820 B2 C1 H4 116.315
B2 C1 H5 116.315 H3 C1 H4 104.891
H3 C1 H5 104.891 H4 C1 H5 110.761
H6 B2 H7 118.101
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.903      
2 B -0.028      
3 H 0.257      
4 H 0.255      
5 H 0.255      
6 H 0.082      
7 H 0.082      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.199 -0.863 0.000 0.885
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.057 -0.229 0.000
y -0.229 -16.569 0.000
z 0.000 0.000 -15.703
Traceless
 xyz
x 2.078 -0.229 0.000
y -0.229 -1.689 0.000
z 0.000 0.000 -0.390
Polar
3z2-r2-0.779
x2-y22.511
xy-0.229
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.125 -0.035 0.000
y -0.035 4.885 0.000
z 0.000 0.000 4.214


<r2> (average value of r2) Å2
<r2> 29.173
(<r2>)1/2 5.401