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: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-133.257940
Energy at 298.15K-133.261790
HF Energy-133.257940
Nuclear repulsion energy63.969126
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 B3PW91/6-31G**
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' 3177 3045 6.87      
2 A' 3060 2933 7.29      
3 A' 2998 2874 20.58      
4 A' 1755 1682 1.23      
5 A' 1480 1419 9.89      
6 A' 1390 1333 4.24      
7 A' 1252 1200 1.19      
8 A' 1059 1015 10.78      
9 A' 921 882 3.07      
10 A' 428 411 16.92      
11 A" 3135 3005 8.93      
12 A" 1486 1424 10.22      
13 A" 1065 1020 0.12      
14 A" 745 714 10.97      
15 A" 186 178 1.22      

Unscaled Zero Point Vibrational Energy (zpe) 12068.8 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 11566.7 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 B3PW91/6-31G**
ABC
1.89942 0.34630 0.30986

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.482 0.000
C2 -0.840 -0.772 0.000
N3 1.251 0.505 0.000
H4 -0.544 1.442 0.000
H5 -0.205 -1.660 0.000
H6 -1.486 -0.789 0.884
H7 -1.486 -0.789 -0.884

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.50931.25141.10342.15202.14582.1458
C21.50932.44962.23371.09111.09501.0950
N31.25142.44962.02552.60893.15353.1535
H41.10342.23372.02553.12052.57782.5778
H52.15201.09112.60893.12051.78301.7830
H62.14581.09503.15352.57781.78301.7679
H72.14581.09503.15352.57781.78301.7679

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 110.669 C1 C2 H6 109.938
C1 C2 H7 109.938 C2 C1 N3 124.816
C2 C1 H4 116.651 N3 C1 H4 118.534
H5 C2 H6 109.291 H5 C2 H7 109.291
H6 C2 H7 107.656
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.094      
2 C -0.432      
3 N -0.297      
4 H 0.147      
5 H 0.167      
6 H 0.160      
7 H 0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.765 -0.444 0.000 2.800
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.325 -1.215 0.000
y -1.215 -17.126 0.000
z 0.000 0.000 -18.567
Traceless
 xyz
x -3.479 -1.215 0.000
y -1.215 2.820 0.000
z 0.000 0.000 0.659
Polar
3z2-r21.318
x2-y2-4.200
xy-1.215
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.997 0.320 0.000
y 0.320 3.797 0.000
z 0.000 0.000 2.732


<r2> (average value of r2) Å2
<r2> 46.206
(<r2>)1/2 6.798