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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-65.920203
Energy at 298.15K-65.924116
HF Energy-65.920203
Nuclear repulsion energy31.774779
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 mPW1PW91/6-31G*
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' 3121 2959 12.94      
2 A' 3020 2864 3.36      
3 A' 2610 2475 108.37      
4 A' 1510 1432 2.73      
5 A' 1365 1294 69.25      
6 A' 1261 1196 24.07      
7 A' 1092 1036 74.80      
8 A' 981 930 11.26      
9 A' 569 540 0.65      
10 A" 3171 3007 15.37      
11 A" 2683 2544 156.87      
12 A" 1472 1396 4.69      
13 A" 1072 1017 21.50      
14 A" 686 650 0.37      
15 A" 147 139 2.16      

Unscaled Zero Point Vibrational Energy (zpe) 12379.0 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 11739.0 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 mPW1PW91/6-31G*
ABC
3.20198 0.71666 0.65471

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.684 0.000
B2 -0.018 0.873 0.000
H3 1.052 -0.960 0.000
H4 -0.444 -1.143 0.896
H5 -0.444 -1.143 -0.896
H6 0.015 1.491 -1.027
H7 0.015 1.491 1.027

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55691.10481.09341.09342.40572.4057
B21.55692.12242.24732.24731.19951.1995
H31.10482.12241.75371.75372.85292.8529
H41.09342.24731.75371.79153.29392.6774
H51.09342.24731.75371.79152.67743.2939
H62.40571.19952.85293.29392.67742.0549
H72.40571.19952.85292.67743.29392.0549

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.015 C1 B2 H7 121.015
B2 C1 H3 104.478 B2 C1 H4 114.846
B2 C1 H5 114.846 H3 C1 H4 105.833
H3 C1 H5 105.833 H4 C1 H5 110.014
H6 B2 H7 117.874
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.670      
2 B 0.132      
3 H 0.191      
4 H 0.187      
5 H 0.187      
6 H -0.014      
7 H -0.014      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.133 -0.698 0.000 0.711
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.384 -0.180 0.000
y -0.180 -15.970 0.000
z 0.000 0.000 -15.268
Traceless
 xyz
x 2.236 -0.180 0.000
y -0.180 -1.644 0.000
z 0.000 0.000 -0.591
Polar
3z2-r2-1.183
x2-y22.586
xy-0.180
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.721 -0.016 0.000
y -0.016 4.129 0.000
z 0.000 0.000 3.653


<r2> (average value of r2) Å2
<r2> 29.112
(<r2>)1/2 5.396