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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B1B95/aug-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 B1B95/aug-cc-pVDZ
 hartrees
Energy at 0K-65.890825
Energy at 298.15K-65.894761
HF Energy-65.890825
Nuclear repulsion energy31.823979
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 B1B95/aug-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' 3112 2981 13.04      
2 A' 2998 2872 4.39      
3 A' 2565 2457 117.05      
4 A' 1446 1385 2.59      
5 A' 1303 1248 80.14      
6 A' 1227 1175 11.21      
7 A' 1067 1022 56.93      
8 A' 983 941 11.15      
9 A' 518 496 0.80      
10 A" 3171 3037 14.55      
11 A" 2638 2527 159.91      
12 A" 1393 1334 4.15      
13 A" 1048 1003 18.66      
14 A" 670 642 1.21      
15 A" 186 178 1.46      

Unscaled Zero Point Vibrational Energy (zpe) 12161.0 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 11649.0 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 B1B95/aug-cc-pVDZ
ABC
3.18243 0.72391 0.65962

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.021 -0.680 0.000
B2 -0.021 0.868 0.000
H3 1.061 -0.925 0.000
H4 -0.429 -1.151 0.900
H5 -0.429 -1.151 -0.900
H6 0.014 1.485 -1.033
H7 0.014 1.485 1.033

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.54791.10911.09481.09482.39942.3994
B21.54792.09342.24752.24751.20381.2038
H31.10912.09341.75561.75562.82312.8231
H41.09482.24751.75561.80063.29872.6763
H51.09482.24751.75561.80062.67633.2987
H62.39941.20382.82313.29872.67632.0654
H72.39941.20382.82312.67633.29872.0654

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.868 C1 B2 H7 120.868
B2 C1 H3 102.722 B2 C1 H4 115.453
B2 C1 H5 115.453 H3 C1 H4 105.609
H3 C1 H5 105.609 H4 C1 H5 110.643
H6 B2 H7 118.154
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.731      
2 B -0.854      
3 H -0.262      
4 H -0.326      
5 H -0.326      
6 H 0.519      
7 H 0.519      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.102 -0.705 0.000 0.713
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.790 -0.185 0.000
y -0.185 -16.517 0.000
z 0.000 0.000 -15.739
Traceless
 xyz
x 2.339 -0.185 0.000
y -0.185 -1.753 0.000
z 0.000 0.000 -0.586
Polar
3z2-r2-1.171
x2-y22.728
xy-0.185
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.811 -0.043 0.000
y -0.043 5.125 0.000
z 0.000 0.000 4.454


<r2> (average value of r2) Å2
<r2> 29.296
(<r2>)1/2 5.413