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: HF/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-132.493614
Energy at 298.15K-132.497586
HF Energy-132.493614
Nuclear repulsion energy63.982324
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3279 2986 16.82      
2 A' 3200 2914 12.72      
3 A' 3175 2891 19.60      
4 A' 1662 1513 6.90      
5 A' 1563 1423 5.34      
6 A' 1501 1367 2.89      
7 A' 1330 1211 3.15      
8 A' 1152 1049 12.77      
9 A' 965 879 3.47      
10 A' 470 428 20.93      
11 A" 3241 2951 20.07      
12 A" 1571 1431 7.99      
13 A" 1141 1039 1.59      
14 A" 787 716 10.31      
15 A" 193 176 2.46      

Unscaled Zero Point Vibrational Energy (zpe) 12614.1 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 11486.4 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/aug-cc-pVDZ
ABC
1.87822 0.34806 0.31060

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.488 0.000
C2 -0.850 -0.757 0.000
N3 1.259 0.477 0.000
H4 -0.501 1.458 0.000
H5 -0.227 -1.648 0.000
H6 -1.492 -0.768 0.882
H7 -1.492 -0.768 -0.882

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.50771.25941.09202.14822.14042.1404
C21.50772.44412.24271.08741.09071.0907
N31.25942.44412.01532.59343.14613.1461
H41.09202.24272.01533.11852.59152.5915
H52.14821.08742.59343.11851.77561.7756
H62.14041.09073.14612.59151.77561.7637
H72.14041.09073.14612.59151.77561.7637

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 110.699 C1 C2 H6 109.881
C1 C2 H7 109.881 C2 C1 N3 123.834
C2 C1 H4 118.359 N3 C1 H4 117.807
H5 C2 H6 109.213 H5 C2 H7 109.213
H6 C2 H7 107.900
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.509      
2 C 0.202      
3 N -0.584      
4 H -0.087      
5 H -0.052      
6 H 0.006      
7 H 0.006      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.825 -0.336 0.000 2.845
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.344 -1.256 0.000
y -1.256 -17.568 0.000
z 0.000 0.000 -19.220
Traceless
 xyz
x -3.950 -1.256 0.000
y -1.256 3.214 0.000
z 0.000 0.000 0.736
Polar
3z2-r21.473
x2-y2-4.776
xy-1.256
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.542 0.339 0.000
y 0.339 4.387 0.000
z 0.000 0.000 3.724


<r2> (average value of r2) Å2
<r2> 46.544
(<r2>)1/2 6.822