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: ROMP2/aug-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 ROMP2/aug-cc-pVDZ
 hartrees
Energy at 0K-132.908382
Energy at 298.15K-132.912246
HF Energy-132.482971
Nuclear repulsion energy63.547050
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 ROMP2/aug-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' 3195 3195        
2 A' 3077 3077        
3 A' 3069 3069        
4 A' 1688 1688        
5 A' 1466 1466        
6 A' 1373 1373        
7 A' 1240 1240        
8 A' 1066 1066        
9 A' 924 924        
10 A' 425 425        
11 A" 3167 3167        
12 A" 1470 1470        
13 A" 1055 1055        
14 A" 732 732        
15 A" 192 192        

Unscaled Zero Point Vibrational Energy (zpe) 12068.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12068.8 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 ROMP2/aug-cc-pVDZ
ABC
1.84882 0.34397 0.30692

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.489 0.000
C2 -0.856 -0.761 0.000
N3 1.267 0.479 0.000
H4 -0.507 1.473 0.000
H5 -0.223 -1.658 0.000
H6 -1.502 -0.768 0.891
H7 -1.502 -0.768 -0.891

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.51521.26741.10642.15922.15192.1519
C21.51522.45892.26081.09831.10081.1008
N31.26742.45892.03352.60573.16533.1653
H41.10642.26082.03353.14402.60842.6084
H52.15921.09832.60573.14401.79571.7957
H62.15191.10083.16532.60841.79571.7823
H72.15191.10083.16532.60841.79571.7823

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 110.398 C1 C2 H6 109.673
C1 C2 H7 109.673 C2 C1 N3 123.942
C2 C1 H4 118.334 N3 C1 H4 117.725
H5 C2 H6 109.483 H5 C2 H7 109.483
H6 C2 H7 108.093
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability