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: BLYP/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 BLYP/cc-pVDZ
 hartrees
Energy at 0K-207.843295
Energy at 298.15K 
HF Energy-207.843295
Nuclear repulsion energy103.182524
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 BLYP/cc-pVDZ
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 3180 1.75 73.49 0.70 0.82
2 A' 3073 3078 2.67 167.06 0.12 0.22
3 A' 3045 3049 14.13 57.09 0.48 0.65
4 A' 1614 1617 0.98 20.17 0.13 0.22
5 A' 1477 1480 92.95 31.76 0.40 0.57
6 A' 1349 1351 21.13 18.15 0.46 0.63
7 A' 1226 1228 2.81 8.16 0.59 0.74
8 A' 1079 1081 61.67 19.89 0.45 0.62
9 A' 841 842 35.57 0.12 0.52 0.69
10 A' 585 586 0.48 9.22 0.25 0.40
11 A' 330 330 1.67 1.05 0.75 0.86
12 A" 975 977 22.39 0.59 0.75 0.86
13 A" 959 961 11.52 1.27 0.75 0.86
14 A" 649 650 0.36 8.09 0.75 0.86
15 A" 181 181 0.03 1.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10279.2 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 10295.7 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 BLYP/cc-pVDZ
ABC
1.72543 0.16541 0.15094

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.218 1.239 0.000
C2 0.000 0.654 0.000
N3 -0.039 -0.789 0.000
O4 -1.191 -1.244 0.000
H5 2.115 0.602 0.000
H6 1.343 2.330 0.000
H7 -0.967 1.189 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.35112.38633.45971.10041.09842.1857
C21.35111.44412.24102.11552.14811.1051
N32.38631.44411.23862.56403.41232.1852
O43.45972.24101.23863.78634.38182.4432
H51.10042.11552.56403.78631.89293.1375
H61.09842.14813.41234.38181.89292.5772
H72.18571.10512.18522.44323.13752.5772

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.201 C1 C2 H7 125.413
C2 C1 H5 118.947 C2 C1 H6 122.218
C2 N3 O4 113.082 N3 C2 H7 117.386
H5 C1 H6 118.835
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.088      
2 C 0.048      
3 N -0.001      
4 O -0.165      
5 H 0.024      
6 H 0.034      
7 H -0.028      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.318 2.638 0.000 2.949
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.711 0.031 0.000
y 0.031 -23.166 0.000
z 0.000 0.000 -23.173
Traceless
 xyz
x 0.459 0.031 0.000
y 0.031 -0.224 0.000
z 0.000 0.000 -0.235
Polar
3z2-r2-0.469
x2-y20.456
xy0.031
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.734 2.085 0.000
y 2.085 6.352 0.000
z 0.000 0.000 2.162


<r2> (average value of r2) Å2
<r2> 77.578
(<r2>)1/2 8.808