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: B3LYPultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/TZVP
 hartrees
Energy at 0K-207.958216
Energy at 298.15K 
HF Energy-207.958216
Nuclear repulsion energy104.689422
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 B3LYPultrafine/TZVP
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' 3251 3132 0.58 59.99 0.68 0.81
2 A' 3161 3045 4.02 173.10 0.15 0.26
3 A' 3145 3030 4.86 23.22 0.72 0.84
4 A' 1679 1617 1.56 34.06 0.10 0.18
5 A' 1575 1517 137.85 68.17 0.36 0.53
6 A' 1421 1369 23.85 21.57 0.39 0.56
7 A' 1293 1246 1.09 9.74 0.35 0.52
8 A' 1143 1101 75.89 27.43 0.45 0.62
9 A' 890 858 39.06 0.67 0.75 0.86
10 A' 616 593 1.17 8.36 0.21 0.34
11 A' 355 342 1.47 0.84 0.71 0.83
12 A" 1016 979 18.24 2.78 0.75 0.86
13 A" 1007 970 42.46 0.33 0.75 0.86
14 A" 685 660 0.96 3.67 0.75 0.86
15 A" 181 175 0.09 0.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10708.3 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 10316.4 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 B3LYPultrafine/TZVP
ABC
1.79047 0.16956 0.15489

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.202 1.222 0.000
C2 0.000 0.649 0.000
N3 -0.045 -0.776 0.000
O4 -1.170 -1.234 0.000
H5 2.092 0.605 0.000
H6 1.322 2.297 0.000
H7 -0.951 1.176 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33172.35583.41491.08341.08172.1532
C21.33171.42632.21722.09292.11301.0869
N32.35581.42631.21492.54503.36412.1524
O43.41492.21721.21493.74544.32242.4201
H51.08342.09292.54503.74541.85933.0962
H61.08172.11303.36414.32241.85932.5344
H72.15321.08692.15242.42013.09622.5344

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.293 C1 C2 H7 125.512
C2 C1 H5 119.780 C2 C1 H6 121.868
C2 N3 O4 113.927 N3 C2 H7 117.195
H5 C1 H6 118.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.169      
2 C -0.121      
3 N 0.053      
4 O -0.167      
5 H 0.141      
6 H 0.141      
7 H 0.122      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.452 3.054 0.000 3.381
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.963 -0.125 0.000
y -0.125 -23.704 0.000
z 0.000 0.000 -23.832
Traceless
 xyz
x 0.805 -0.125 0.000
y -0.125 -0.306 0.000
z 0.000 0.000 -0.499
Polar
3z2-r2-0.998
x2-y20.741
xy-0.125
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.988 2.266 0.000
y 2.266 6.505 0.000
z 0.000 0.000 3.009


<r2> (average value of r2) Å2
<r2> 76.272
(<r2>)1/2 8.733