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All results from a given calculation for C2H3NO (Nitrosoethylene)

using model chemistry: CCSD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-207.427106
Energy at 298.15K 
HF Energy-206.696196
Nuclear repulsion energy104.607847
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/6-31G(2df,p)
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' 3310 3130 0.45      
2 A' 3237 3060 2.68      
3 A' 3208 3034 0.21      
4 A' 1711 1618 1.84      
5 A' 1646 1556 66.63      
6 A' 1438 1360 11.93      
7 A' 1302 1231 0.86      
8 A' 1173 1109 46.46      
9 A' 906 857 20.62      
10 A' 617 583 1.19      
11 A' 345 326 1.37      
12 A" 1024 969 31.08      
13 A" 1006 951 16.64      
14 A" 693 656 0.60      
15 A" 169 159 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 10892.7 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 10299.1 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 CCSD/6-31G(2df,p)
ABC
1.76211 0.16979 0.15486

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.201 1.226 0.000
C2 0.000 0.648 0.000
N3 -0.040 -0.790 0.000
O4 -1.172 -1.224 0.000
H5 2.093 0.612 0.000
H6 1.318 2.301 0.000
H7 -0.957 1.160 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33242.36683.41091.08321.08192.1585
C21.33241.43862.20922.09342.11411.0849
N32.36681.43861.21292.55223.37622.1543
O43.41092.20921.21293.74614.31642.3938
H51.08322.09342.55223.74611.85913.0987
H61.08192.11413.37624.31641.85912.5450
H72.15851.08492.15432.39383.09872.5450

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.275 C1 C2 H7 126.183
C2 C1 H5 119.778 C2 C1 H6 121.897
C2 N3 O4 112.586 N3 C2 H7 116.542
H5 C1 H6 118.325
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability