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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-65.956297
Energy at 298.15K-65.960217
HF Energy-65.956297
Nuclear repulsion energy31.746645
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 B3LYP/6-31+G**
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' 3074 2964 16.37      
2 A' 2974 2867 4.70      
3 A' 2584 2492 120.89      
4 A' 1483 1430 3.81      
5 A' 1337 1290 77.30      
6 A' 1254 1209 22.68      
7 A' 1091 1052 68.63      
8 A' 968 933 12.65      
9 A' 564 544 0.40      
10 A" 3123 3011 19.22      
11 A" 2650 2555 177.63      
12 A" 1438 1387 5.99      
13 A" 1063 1025 19.80      
14 A" 685 660 1.10      
15 A" 152 147 1.92      

Unscaled Zero Point Vibrational Energy (zpe) 12220.0 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 11782.5 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 B3LYP/6-31+G**
ABC
3.19835 0.71517 0.65348

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.684 0.000
B2 -0.018 0.875 0.000
H3 1.055 -0.958 0.000
H4 -0.443 -1.146 0.897
H5 -0.443 -1.146 -0.897
H6 0.014 1.491 -1.027
H7 0.014 1.491 1.027

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55911.10701.09481.09482.40562.4056
B21.55912.12372.25132.25131.19801.1980
H31.10702.12371.75591.75592.85222.8522
H41.09482.25131.75591.79443.29602.6792
H51.09482.25131.75591.79442.67923.2960
H62.40561.19802.85223.29602.67922.0537
H72.40561.19802.85222.67923.29602.0537

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.954 C1 B2 H7 120.954
B2 C1 H3 104.323 B2 C1 H4 114.933
B2 C1 H5 114.933 H3 C1 H4 105.777
H3 C1 H5 105.777 H4 C1 H5 110.066
H6 B2 H7 117.999
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.605      
2 B 0.189      
3 H 0.159      
4 H 0.160      
5 H 0.160      
6 H -0.032      
7 H -0.032      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.114 -0.662 0.000 0.671
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.813 -0.169 0.000
y -0.169 -16.682 0.000
z 0.000 0.000 -15.855
Traceless
 xyz
x 2.456 -0.169 0.000
y -0.169 -1.848 0.000
z 0.000 0.000 -0.608
Polar
3z2-r2-1.215
x2-y22.869
xy-0.169
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.053 -0.029 0.000
y -0.029 4.717 0.000
z 0.000 0.000 4.072


<r2> (average value of r2) Å2
<r2> 29.503
(<r2>)1/2 5.432