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: B1B95/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/daug-cc-pVTZ
 hartrees
Energy at 0K-207.873801
Energy at 298.15K 
HF Energy-207.873801
Nuclear repulsion energy105.382449
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 B1B95/daug-cc-pVTZ
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' 3275 3275 0.38 58.48 0.66 0.80
2 A' 3185 3185 4.47 174.53 0.13 0.23
3 A' 3168 3168 2.75 18.74 0.49 0.66
4 A' 1704 1704 7.05 29.81 0.05 0.09
5 A' 1632 1632 138.76 94.21 0.37 0.54
6 A' 1415 1415 23.87 21.11 0.38 0.55
7 A' 1285 1285 2.41 7.80 0.25 0.41
8 A' 1153 1153 77.11 26.73 0.40 0.57
9 A' 899 899 28.03 0.32 0.64 0.78
10 A' 616 616 1.52 9.40 0.10 0.18
11 A' 345 345 1.15 0.70 0.67 0.80
12 A" 1019 1019 6.70 3.49 0.75 0.86
13 A" 1009 1009 47.89 0.28 0.75 0.86
14 A" 690 690 1.07 0.72 0.75 0.86
15 A" 178 178 0.08 0.26 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10785.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10785.4 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 B1B95/daug-cc-pVTZ
ABC
1.79981 0.17216 0.15713

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.203 1.205 0.000
C2 0.000 0.647 0.000
N3 -0.050 -0.771 0.000
O4 -1.167 -1.218 0.000
H5 2.079 0.574 0.000
H6 1.336 2.275 0.000
H7 -0.946 1.176 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.32552.33903.38901.08041.07852.1483
C21.32551.41892.20042.08082.10581.0833
N32.33901.41891.20362.51813.34622.1429
O43.38902.20041.20363.70824.29742.4042
H51.08042.08082.51813.70821.85653.0844
H61.07852.10583.34624.29741.85652.5326
H72.14831.08332.14292.40423.08442.5326

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 116.876 C1 C2 H7 125.928
C2 C1 H5 119.392 C2 C1 H6 121.983
C2 N3 O4 113.827 N3 C2 H7 117.197
H5 C1 H6 118.625
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.427      
2 C -0.243      
3 N -0.400      
4 O -0.678      
5 H 0.668      
6 H 0.605      
7 H 1.475      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.410 2.909 0.000 3.233
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.667 -0.010 0.000
y -0.010 -23.335 0.000
z 0.000 0.000 -23.700
Traceless
 xyz
x 0.851 -0.010 0.000
y -0.010 -0.151 0.000
z 0.000 0.000 -0.699
Polar
3z2-r2-1.399
x2-y20.668
xy-0.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.326 1.998 0.000
y 1.998 6.999 0.000
z 0.000 0.000 3.848


<r2> (average value of r2) Å2
<r2> 75.245
(<r2>)1/2 8.674