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

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-131.732338
Energy at 298.15K-131.736246
HF Energy-131.732338
Nuclear repulsion energy63.634219
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 HF/3-21G
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' 3292 2981 10.69      
2 A' 3225 2921 12.63      
3 A' 3201 2899 14.72      
4 A' 1659 1502 11.63      
5 A' 1578 1429 9.58      
6 A' 1505 1363 1.28      
7 A' 1322 1197 1.53      
8 A' 1160 1051 16.15      
9 A' 929 841 2.07      
10 A' 464 420 17.83      
11 A" 3255 2948 13.83      
12 A" 1654 1498 12.45      
13 A" 1170 1059 0.04      
14 A" 787 713 19.70      
15 A" 162 146 1.51      

Unscaled Zero Point Vibrational Energy (zpe) 12681.5 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 11484.4 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 HF/3-21G
ABC
1.87194 0.34258 0.30594

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.492 0.000
C2 -0.864 -0.754 0.000
N3 1.277 0.472 0.000
H4 -0.510 1.445 0.000
H5 -0.248 -1.643 0.000
H6 -1.499 -0.766 0.879
H7 -1.499 -0.766 -0.879

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.51641.27711.08062.14902.14542.1454
C21.51642.46722.22731.08121.08431.0843
N31.27712.46722.03452.60703.16433.1643
H41.08062.22732.03453.09852.57662.5766
H52.14901.08122.60703.09851.76261.7626
H62.14541.08433.16432.57661.76261.7570
H72.14541.08433.16432.57661.76261.7570

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 110.528 C1 C2 H6 110.052
C1 C2 H7 110.052 C2 C1 N3 123.833
C2 C1 H4 117.114 N3 C1 H4 119.053
H5 C2 H6 108.968 H5 C2 H7 108.968
H6 C2 H7 108.226
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.004      
2 C -0.651      
3 N -0.302      
4 H 0.246      
5 H 0.241      
6 H 0.231      
7 H 0.231      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.650 -0.263 0.000 2.663
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.281 -1.143 0.000
y -1.143 -17.474 0.000
z 0.000 0.000 -19.100
Traceless
 xyz
x -3.994 -1.143 0.000
y -1.143 3.217 0.000
z 0.000 0.000 0.778
Polar
3z2-r21.556
x2-y2-4.807
xy-1.143
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.241 0.176 0.000
y 0.176 3.276 0.000
z 0.000 0.000 2.356


<r2> (average value of r2) Å2
<r2> 46.892
(<r2>)1/2 6.848