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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP4=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-169.591127
Energy at 298.15K-169.594805
HF Energy-168.890861
Nuclear repulsion energy70.208582
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-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' 3156 3039        
2 A' 3057 2944        
3 A' 1520 1464        
4 A' 1465 1410        
5 A' 1380 1329        
6 A' 1153 1110        
7 A' 870 838        
8 A' 572 551        
9 A" 3137 3021        
10 A" 1479 1425        
11 A" 976 940        
12 A" 148 143        

Unscaled Zero Point Vibrational Energy (zpe) 9456.9 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 9106.0 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-pVTZ
ABC
2.01818 0.38345 0.34265

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.954 -0.557 0.000
N2 0.000 0.575 0.000
O3 1.165 0.213 0.000
H4 -0.428 -1.508 0.000
H5 -1.583 -0.440 0.879
H6 -1.583 -0.440 -0.879

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48022.25371.08681.08791.0879
N21.48021.21952.12712.07652.0765
O32.25371.21952.34522.95822.9582
H41.08682.12712.34521.80221.8022
H51.08792.07652.95821.80221.7588
H61.08792.07652.95821.80221.7588

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.830 N2 C1 H4 110.989
N2 C1 H5 106.918 N2 C1 H6 106.918
H4 C1 H5 111.934 H4 C1 H6 111.934
H5 C1 H6 107.873
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability