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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: CCSD(T)=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)=FULL/6-31G*
 hartrees
Energy at 0K-169.345374
Energy at 298.15K-169.349048
HF Energy-168.823861
Nuclear repulsion energy69.742441
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/6-31G*
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' 3175 3082        
2 A' 3057 2968        
3 A' 1596 1549        
4 A' 1499 1455        
5 A' 1415 1374        
6 A' 1171 1136        
7 A' 880 854        
8 A' 580 563        
9 A" 3147 3055        
10 A" 1499 1455        
11 A" 996 967        
12 A" 145 140        

Unscaled Zero Point Vibrational Energy (zpe) 9579.7 cm-1
Scaled (by 0.9707) Zero Point Vibrational Energy (zpe) 9299.0 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 CCSD(T)=FULL/6-31G*
ABC
1.97045 0.38006 0.33900

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.959 -0.559 0.000
N2 0.000 0.583 0.000
O3 1.170 0.209 0.000
H4 -0.426 -1.515 0.000
H5 -1.592 -0.445 0.889
H6 -1.592 -0.445 -0.889

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49082.26301.09511.09711.0971
N21.49081.22842.14112.09322.0932
O32.26301.22842.34952.97442.9744
H41.09512.14112.34951.81531.8153
H51.09712.09322.97441.81531.7771
H61.09712.09322.97441.81531.7771

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.293 N2 C1 H4 110.859
N2 C1 H5 106.978 N2 C1 H6 106.978
H4 C1 H5 111.801 H4 C1 H6 111.801
H5 C1 H6 108.175
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability