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: MP2=FULL/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 MP2=FULL/6-311G**
 hartrees
Energy at 0K-132.978105
Energy at 298.15K-132.982057
HF Energy-132.506561
Nuclear repulsion energy64.600799
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 MP2=FULL/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' 3220 3055 5.20      
2 A' 3101 2941 5.76      
3 A' 3056 2899 17.87      
4 A' 2112 2003 74.80      
5 A' 1500 1423 13.38      
6 A' 1407 1334 5.40      
7 A' 1277 1211 4.20      
8 A' 1083 1028 11.38      
9 A' 941 893 1.40      
10 A' 443 420 21.99      
11 A" 3191 3027 6.98      
12 A" 1503 1425 10.98      
13 A" 1143 1084 1.59      
14 A" 799 758 7.38      
15 A" 208 197 1.97      

Unscaled Zero Point Vibrational Energy (zpe) 12491.1 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 11849.1 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 MP2=FULL/6-311G**
ABC
1.92287 0.35320 0.31607

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.482 0.000
C2 -0.819 -0.786 0.000
N3 1.221 0.522 0.000
H4 -0.557 1.432 0.000
H5 -0.165 -1.657 0.000
H6 -1.458 -0.805 0.885
H7 -1.458 -0.805 -0.885

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.50981.22201.10082.14602.13692.1369
C21.50982.42362.23361.08921.09231.0923
N31.22202.42361.99722.58313.11833.1183
H41.10082.23361.99723.11412.56882.5688
H52.14601.08922.58313.11411.78421.7842
H62.13691.09233.11832.56881.78421.7706
H72.13691.09233.11832.56881.78421.7706

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 110.274 C1 C2 H6 109.367
C1 C2 H7 109.367 C2 C1 N3 124.711
C2 C1 H4 116.783 N3 C1 H4 118.506
H5 C2 H6 109.751 H5 C2 H7 109.751
H6 C2 H7 108.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability