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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-65.898088
Energy at 298.15K-65.902030
HF Energy-65.898088
Nuclear repulsion energy31.910277
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 B1B95/6-311G*
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' 3100 2971 16.37      
2 A' 2997 2873 4.76      
3 A' 2563 2457 120.07      
4 A' 1495 1434 4.72      
5 A' 1347 1291 81.41      
6 A' 1246 1194 22.88      
7 A' 1077 1033 70.17      
8 A' 982 941 12.53      
9 A' 546 524 0.65      
10 A" 3153 3022 19.94      
11 A" 2634 2525 168.31      
12 A" 1454 1394 6.18      
13 A" 1065 1021 21.83      
14 A" 683 655 0.88      
15 A" 172 165 2.14      

Unscaled Zero Point Vibrational Energy (zpe) 12256.8 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 11749.4 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 B1B95/6-311G*
ABC
3.22182 0.72475 0.66135

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.679 0.000
B2 -0.020 0.868 0.000
H3 1.052 -0.943 0.000
H4 -0.434 -1.146 0.894
H5 -0.434 -1.146 -0.894
H6 0.015 1.484 -1.026
H7 0.015 1.484 1.026

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.54681.10321.09001.09002.39412.3941
B21.54682.10382.24162.24161.19721.1972
H31.10322.10381.74541.74542.83122.8312
H41.09002.24161.74541.78733.28662.6711
H51.09002.24161.74541.78732.67113.2866
H62.39411.19722.83123.28662.67112.0518
H72.39411.19722.83122.67113.28662.0518

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.971 C1 B2 H7 120.971
B2 C1 H3 103.835 B2 C1 H4 115.357
B2 C1 H5 115.357 H3 C1 H4 105.461
H3 C1 H5 105.461 H4 C1 H5 110.143
H6 B2 H7 117.948
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.847      
2 B 0.065      
3 H 0.228      
4 H 0.230      
5 H 0.230      
6 H 0.047      
7 H 0.047      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.121 -0.692 0.000 0.702
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.745 -0.190 0.000
y -0.190 -16.518 0.000
z 0.000 0.000 -15.654
Traceless
 xyz
x 2.341 -0.190 0.000
y -0.190 -1.819 0.000
z 0.000 0.000 -0.522
Polar
3z2-r2-1.045
x2-y22.773
xy-0.190
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.985 -0.028 0.000
y -0.028 4.554 0.000
z 0.000 0.000 4.036


<r2> (average value of r2) Å2
<r2> 29.199
(<r2>)1/2 5.404