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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-65.935015
Energy at 298.15K-65.938955
HF Energy-65.935015
Nuclear repulsion energy31.832447
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 B3PW91/6-311G**
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' 3077 2964 14.24      
2 A' 2977 2867 3.73      
3 A' 2557 2462 113.69      
4 A' 1471 1417 3.69      
5 A' 1323 1274 76.21      
6 A' 1239 1194 18.39      
7 A' 1079 1039 65.90      
8 A' 976 940 12.29      
9 A' 556 535 0.79      
10 A" 3129 3014 16.16      
11 A" 2627 2530 155.72      
12 A" 1424 1371 5.24      
13 A" 1057 1018 20.28      
14 A" 684 658 0.66      
15 A" 166 160 2.16      

Unscaled Zero Point Vibrational Energy (zpe) 12171.0 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 11721.9 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 B3PW91/6-311G**
ABC
3.20438 0.72108 0.65818

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.681 0.000
B2 -0.019 0.870 0.000
H3 1.055 -0.944 0.000
H4 -0.437 -1.146 0.897
H5 -0.437 -1.146 -0.897
H6 0.014 1.487 -1.027
H7 0.014 1.487 1.027

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55171.10601.09291.09292.39942.3994
B21.55172.10892.24572.24571.19831.1983
H31.10602.10891.75231.75232.83722.8372
H41.09292.24571.75231.79393.29172.6741
H51.09292.24571.75231.79392.67413.2917
H62.39941.19832.83723.29172.67412.0540
H72.39941.19832.83722.67413.29172.0540

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.966 C1 B2 H7 120.966
B2 C1 H3 103.758 B2 C1 H4 115.144
B2 C1 H5 115.144 H3 C1 H4 105.666
H3 C1 H5 105.666 H4 C1 H5 110.306
H6 B2 H7 117.968
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.481      
2 B 0.118      
3 H 0.131      
4 H 0.132      
5 H 0.132      
6 H -0.016      
7 H -0.016      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.121 -0.685 0.000 0.695
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.679 -0.196 0.000
y -0.196 -16.377 0.000
z 0.000 0.000 -15.596
Traceless
 xyz
x 2.307 -0.196 0.000
y -0.196 -1.739 0.000
z 0.000 0.000 -0.568
Polar
3z2-r2-1.136
x2-y22.698
xy-0.196
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.063 -0.027 0.000
y -0.027 4.642 0.000
z 0.000 0.000 4.097


<r2> (average value of r2) Å2
<r2> 29.234
(<r2>)1/2 5.407