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All results from a given calculation for C2H3NO (Nitrosoethylene)

using model chemistry: CCSD/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/6-31G*
 hartrees
Energy at 0K-207.289845
Energy at 298.15K 
HF Energy-206.672650
Nuclear repulsion energy104.019417
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*
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' 3293 3110 2.33      
2 A' 3219 3040 3.96      
3 A' 3196 3018 1.40      
4 A' 1719 1623 1.47      
5 A' 1623 1532 59.44      
6 A' 1452 1371 10.83      
7 A' 1314 1241 0.72      
8 A' 1183 1117 45.15      
9 A' 917 866 22.00      
10 A' 618 583 1.43      
11 A' 353 333 1.46      
12 A" 1004 948 46.32      
13 A" 978 923 13.05      
14 A" 679 641 0.87      
15 A" 164 155 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 10855.4 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 10250.8 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 CCSD/6-31G*
ABC
1.74353 0.16819 0.15339

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.205 1.232 0.000
C2 0.000 0.649 0.000
N3 -0.035 -0.791 0.000
O4 -1.181 -1.231 0.000
H5 2.106 0.624 0.000
H6 1.318 2.312 0.000
H7 -0.961 1.164 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33812.37233.42861.08731.08622.1663
C21.33811.44062.22022.10642.12211.0896
N32.37231.44061.22762.56643.38532.1627
O43.42862.22021.22763.77444.33582.4046
H51.08732.10642.56643.77441.86283.1139
H61.08622.12213.38534.33581.86282.5520
H72.16631.08962.16272.40463.11392.5520

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.198 C1 C2 H7 126.019
C2 C1 H5 120.204 C2 C1 H6 121.825
C2 N3 O4 112.385 N3 C2 H7 116.784
H5 C1 H6 117.971
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability