return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CHN (methylmethaniminyl radical)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-131.626985
Energy at 298.15K-131.630677
HF Energy-131.626985
Nuclear repulsion energy62.343802
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/STO-3G
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' 3490 3114 0.31      
2 A' 3303 2947 0.49      
3 A' 3301 2946 9.19      
4 A' 1716 1531 9.70      
5 A' 1649 1471 1.74      
6 A' 1541 1375 1.11      
7 A' 1317 1175 0.83      
8 A' 1125 1004 11.06      
9 A' 979 874 3.08      
10 A' 423 378 8.40      
11 A" 3457 3085 0.00      
12 A" 1657 1479 6.39      
13 A" 1132 1011 0.11      
14 A" 751 671 11.17      
15 A" 166 148 0.89      

Unscaled Zero Point Vibrational Energy (zpe) 13002.7 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 11603.6 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/STO-3G
ABC
1.79873 0.32897 0.29369

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.499 0.000
C2 -0.882 -0.767 0.000
N3 1.307 0.480 0.000
H4 -0.541 1.471 0.000
H5 -0.257 -1.672 0.000
H6 -1.530 -0.775 0.893
H7 -1.530 -0.775 -0.893

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.54311.30721.11192.18682.18202.1820
C21.54312.51932.26371.10031.10331.1033
N31.30722.51932.09682.66063.22793.2279
H41.11192.26372.09683.15602.61152.6115
H52.18681.10032.66063.15601.79511.7951
H62.18201.10333.22792.61151.79511.7865
H72.18201.10333.22792.61151.79511.7865

picture of methylmethaniminyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.520 C1 C2 H6 109.969
C1 C2 H7 109.969 C2 C1 N3 124.011
C2 C1 H4 116.039 N3 C1 H4 119.950
H5 C2 H6 109.106 H5 C2 H7 109.106
H6 C2 H7 108.123
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.017      
2 C -0.223      
3 N -0.129      
4 H 0.092      
5 H 0.094      
6 H 0.092      
7 H 0.092      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.056 -0.236 0.000 2.069
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.790 -0.846 0.000
y -0.846 -16.191 0.000
z 0.000 0.000 -17.212
Traceless
 xyz
x -3.088 -0.846 0.000
y -0.846 2.310 0.000
z 0.000 0.000 0.778
Polar
3z2-r21.556
x2-y2-3.599
xy-0.846
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.847 0.194 0.000
y 0.194 1.993 0.000
z 0.000 0.000 1.249


<r2> (average value of r2) Å2
<r2> 47.133
(<r2>)1/2 6.865