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: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-132.938886
Energy at 298.15K-132.942741
HF Energy-132.501131
Nuclear repulsion energy63.766495
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 QCISD/6-311G*
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' 3154 3019 10.56      
2 A' 3052 2922 9.94      
3 A' 3006 2878 22.87      
4 A' 1730 1656 0.30      
5 A' 1510 1445 11.30      
6 A' 1427 1366 5.85      
7 A' 1273 1218 1.88      
8 A' 1081 1035 9.91      
9 A' 930 891 1.56      
10 A' 437 418 18.19      
11 A" 3125 2992 13.83      
12 A" 1510 1445 10.92      
13 A" 1087 1041 0.85      
14 A" 746 715 11.54      
15 A" 173 165 1.71      

Unscaled Zero Point Vibrational Energy (zpe) 12119.0 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 11602.7 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 QCISD/6-311G*
ABC
1.87754 0.34452 0.30797

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.488 0.000
C2 -0.846 -0.772 0.000
N3 1.256 0.499 0.000
H4 -0.532 1.454 0.000
H5 -0.206 -1.658 0.000
H6 -1.489 -0.791 0.887
H7 -1.489 -0.791 -0.887

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.51751.25621.10322.15572.15392.1539
C21.51752.45652.24811.09291.09571.0957
N31.25622.45652.02772.60583.16023.1602
H41.10322.24812.02773.12912.59642.5964
H52.15571.09292.60583.12911.78461.7846
H62.15391.09573.16022.59641.78461.7737
H72.15391.09573.16022.59641.78461.7737

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 110.279 C1 C2 H6 109.968
C1 C2 H7 109.968 C2 C1 N3 124.386
C2 C1 H4 117.264 N3 C1 H4 118.349
H5 C2 H6 109.258 H5 C2 H7 109.258
H6 C2 H7 108.071
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability