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: MP4=FULL/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 MP4=FULL/cc-pVDZ
 hartrees
Energy at 0K-132.936385
Energy at 298.15K-132.940366
HF Energy-132.485346
Nuclear repulsion energy63.929165
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 MP4=FULL/cc-pVDZ
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' 3197 3086        
2 A' 3077 2970        
3 A' 3030 2924        
4 A' 2013 1943        
5 A' 1476 1425        
6 A' 1380 1332        
7 A' 1257 1213        
8 A' 1071 1034        
9 A' 933 900        
10 A' 434 419        
11 A" 3165 3054        
12 A" 1483 1431        
13 A" 1118 1079        
14 A" 780 753        
15 A" 247 239        

Unscaled Zero Point Vibrational Energy (zpe) 12330.7 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 11900.4 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 MP4=FULL/cc-pVDZ
ABC
1.88179 0.34651 0.30996

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.486 0.000
C2 -0.831 -0.787 0.000
N3 1.239 0.519 0.000
H4 -0.558 1.449 0.000
H5 -0.173 -1.669 0.000
H6 -1.478 -0.806 0.894
H7 -1.478 -0.806 -0.894

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.51961.23921.11312.16202.15732.1573
C21.51962.44702.25211.10071.10391.1039
N31.23922.44702.02312.60423.15243.1524
H41.11312.25212.02313.14182.59472.5947
H52.16201.10072.60423.14181.80191.8019
H62.15731.10393.15242.59471.80191.7880
H72.15731.10393.15242.59471.80191.7880

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 110.166 C1 C2 H6 109.612
C1 C2 H7 109.612 C2 C1 N3 124.683
C2 C1 H4 116.769 N3 C1 H4 118.548
H5 C2 H6 109.632 H5 C2 H7 109.632
H6 C2 H7 108.155
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability