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: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-133.133485
Energy at 298.15K-133.137282
HF Energy-133.133485
Nuclear repulsion energy63.452619
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 PBEPBE/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' 3097 3079 5.46      
2 A' 2977 2960 7.77      
3 A' 2861 2845 23.12      
4 A' 1693 1683 0.94      
5 A' 1392 1384 10.44      
6 A' 1308 1301 2.58      
7 A' 1179 1172 1.13      
8 A' 1009 1003 8.58      
9 A' 890 885 3.84      
10 A' 404 402 15.32      
11 A" 3054 3036 6.02      
12 A" 1399 1391 9.25      
13 A" 1007 1001 0.08      
14 A" 712 708 10.10      
15 A" 197 196 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 11589.3 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 11522.1 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 PBEPBE/cc-pVDZ
ABC
1.87655 0.34076 0.30523

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.481 0.000
C2 -0.842 -0.780 0.000
N3 1.259 0.517 0.000
H4 -0.566 1.450 0.000
H5 -0.199 -1.679 0.000
H6 -1.498 -0.796 0.894
H7 -1.498 -0.796 -0.894

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.51591.25951.12222.16882.16212.1621
C21.51592.46902.24681.10551.10961.1096
N31.25952.46902.04932.63583.18223.1822
H41.12222.24682.04933.15032.59102.5910
H52.16881.10552.63583.15031.80801.8080
H62.16211.10963.18222.59101.80801.7888
H72.16211.10963.18222.59101.80801.7888

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 110.682 C1 C2 H6 109.912
C1 C2 H7 109.912 C2 C1 N3 125.391
C2 C1 H4 115.990 N3 C1 H4 118.619
H5 C2 H6 109.419 H5 C2 H7 109.419
H6 C2 H7 107.434
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.044      
2 C -0.047      
3 N -0.132      
4 H 0.041      
5 H 0.055      
6 H 0.063      
7 H 0.063      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.607 -0.480 0.000 2.651
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.233 -1.153 0.000
y -1.153 -17.498 0.000
z 0.000 0.000 -18.698
Traceless
 xyz
x -3.135 -1.153 0.000
y -1.153 2.468 0.000
z 0.000 0.000 0.667
Polar
3z2-r21.335
x2-y2-3.735
xy-1.153
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.220 0.383 0.000
y 0.383 4.208 0.000
z 0.000 0.000 2.929


<r2> (average value of r2) Å2
<r2> 46.849
(<r2>)1/2 6.845