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: CCSD(T)=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCSD(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-133.133336
Energy at 298.15K-133.137119
HF Energy-132.524185
Nuclear repulsion energy64.219812
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 CCSD(T)=FULL/aug-cc-pVTZ
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' 3143 3029        
2 A' 3056 2945        
3 A' 3013 2904        
4 A' 1741 1678        
5 A' 1491 1437        
6 A' 1408 1357        
7 A' 1251 1205        
8 A' 1063 1024        
9 A' 914 881        
10 A' 424 409        
11 A" 3117 3004        
12 A" 1492 1437        
13 A" 1065 1026        
14 A" 744 717        
15 A" 137 132        

Unscaled Zero Point Vibrational Energy (zpe) 12028.4 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 11591.8 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 CCSD(T)=FULL/aug-cc-pVTZ
ABC
1.89598 0.35010 0.31271

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.486 0.000
C2 -0.840 -0.765 0.000
N3 1.248 0.491 0.000
H4 -0.527 1.443 0.000
H5 -0.207 -1.649 0.000
H6 -1.480 -0.778 0.882
H7 -1.480 -0.778 -0.882

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.50681.24761.09302.14472.13662.1366
C21.50682.43672.23081.08711.08951.0895
N31.24762.43672.01352.58783.13513.1351
H41.09302.23082.01353.10892.57332.5733
H52.14471.08712.58783.10891.77661.7766
H62.13661.08953.13512.57331.77661.7634
H72.13661.08953.13512.57331.77661.7634

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 110.496 C1 C2 H6 109.709
C1 C2 H7 109.709 C2 C1 N3 124.144
C2 C1 H4 117.313 N3 C1 H4 118.543
H5 C2 H6 109.418 H5 C2 H7 109.418
H6 C2 H7 108.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability