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 C2H3NO (Nitrosoethylene)

using model chemistry: B3PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-207.813060
Energy at 298.15K 
HF Energy-207.813060
Nuclear repulsion energy104.541785
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 B3PW91/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3278 3163 0.22      
2 A' 3173 3062 3.87      
3 A' 3154 3044 4.81      
4 A' 1699 1639 6.18      
5 A' 1631 1574 115.88      
6 A' 1386 1338 23.46      
7 A' 1262 1218 3.38      
8 A' 1140 1100 66.33      
9 A' 889 858 26.04      
10 A' 612 591 1.62      
11 A' 338 326 1.60      
12 A" 1003 968 29.85      
13 A" 995 961 16.22      
14 A" 679 655 0.77      
15 A" 182 176 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 10710.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 10335.7 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 B3PW91/cc-pVDZ
ABC
1.76514 0.16969 0.15481

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.211 1.217 0.000
C2 0.000 0.647 0.000
N3 -0.048 -0.780 0.000
O4 -1.177 -1.223 0.000
H5 2.098 0.579 0.000
H6 1.343 2.300 0.000
H7 -0.957 1.183 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33792.36033.41391.09331.09152.1678
C21.33791.42812.21002.09922.12981.0970
N32.36031.42811.21312.53963.37972.1638
O43.41392.21001.21313.73794.33192.4168
H51.09332.09922.53963.73791.88023.1144
H61.09152.12983.37974.33191.88022.5567
H72.16781.09702.16382.41683.11442.5567

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.114 C1 C2 H7 125.535
C2 C1 H5 119.069 C2 C1 H6 122.164
C2 N3 O4 113.346 N3 C2 H7 117.352
H5 C1 H6 118.767
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.009      
2 C 0.011      
3 N -0.005      
4 O -0.182      
5 H 0.068      
6 H 0.074      
7 H 0.025      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.342 2.716 0.000 3.029
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.302 -0.047 0.000
y -0.047 -22.931 0.000
z 0.000 0.000 -23.192
Traceless
 xyz
x 0.760 -0.047 0.000
y -0.047 -0.184 0.000
z 0.000 0.000 -0.576
Polar
3z2-r2-1.152
x2-y20.629
xy-0.047
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.521 2.067 0.000
y 2.067 5.959 0.000
z 0.000 0.000 2.162


<r2> (average value of r2) Å2
<r2> 75.914
(<r2>)1/2 8.713