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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3LYP/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-65.979929
Energy at 298.15K-65.983870
HF Energy-65.979929
Nuclear repulsion energy31.901262
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/cc-pVQZ
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' 3057 2961 13.43      
2 A' 2957 2865 5.30      
3 A' 2572 2491 110.04      
4 A' 1478 1432 2.23      
5 A' 1330 1288 67.41      
6 A' 1257 1218 21.23      
7 A' 1091 1057 60.62      
8 A' 971 941 12.99      
9 A' 565 547 0.54      
10 A" 3104 3007 17.48      
11 A" 2636 2554 153.97      
12 A" 1429 1385 4.36      
13 A" 1068 1035 18.58      
14 A" 689 668 1.09      
15 A" 158 153 1.42      

Unscaled Zero Point Vibrational Energy (zpe) 12180.4 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 11800.4 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 B3LYP/cc-pVQZ
ABC
3.22919 0.72249 0.66005

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.681 0.000
B2 -0.018 0.870 0.000
H3 1.051 -0.951 0.000
H4 -0.438 -1.142 0.893
H5 -0.438 -1.142 -0.893
H6 0.013 1.484 -1.022
H7 0.013 1.484 1.022

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55081.10291.08971.08972.39372.3937
B21.55082.11152.24152.24151.19241.1924
H31.10292.11151.74721.74722.83692.8369
H41.08972.24151.74721.78663.28142.6675
H51.08972.24151.74721.78662.66753.2814
H62.39371.19242.83693.28142.66752.0440
H72.39371.19242.83692.66753.28142.0440

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 104.170 B2 C1 H4 115.065
B2 C1 H5 115.065 H3 C1 H4 105.660
H3 C1 H5 105.660 H4 C1 H5 110.123
H6 B2 H7 117.980
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.414      
2 B 0.291      
3 H 0.091      
4 H 0.098      
5 H 0.098      
6 H -0.081      
7 H -0.081      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.090 -0.664 0.000 0.670
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.801 -0.189 0.000
y -0.189 -16.603 0.000
z 0.000 0.000 -15.831
Traceless
 xyz
x 2.417 -0.189 0.000
y -0.189 -1.787 0.000
z 0.000 0.000 -0.629
Polar
3z2-r2-1.259
x2-y22.802
xy-0.189
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.651 -0.031 0.000
y -0.031 4.962 0.000
z 0.000 0.000 4.305


<r2> (average value of r2) Å2
<r2> 29.285
(<r2>)1/2 5.412