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 ClNO2 (Nitryl chloride)

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-665.113571
Energy at 298.15K-665.115491
HF Energy-664.813560
Nuclear repulsion energy153.456176
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 B2PLYP/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 A1 1309 1256 351.14      
2 A1 794 762 265.26      
3 A1 361 346 78.68      
4 B1 663 636 5.42      
5 B2 1774 1702 328.98      
6 B2 406 389 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 2653.2 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 2545.5 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 B2PLYP/cc-pVTZ
ABC
0.44218 0.16666 0.12104

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 1.284
N2 0.000 0.000 -0.620
O3 0.000 1.093 -1.093
O4 0.000 -1.093 -1.093

Atom - Atom Distances (Å)
  Cl1 N2 O3 O4
Cl11.90362.61622.6162
N21.90361.19121.1912
O32.61621.19122.1863
O42.61621.19122.1863

picture of Nitryl chloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 N2 O3 113.411 Cl1 N2 O4 113.411
O3 N2 O4 133.179
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl -0.071      
2 N 0.324      
3 O -0.127      
4 O -0.127      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.034 0.034
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.434 0.000 0.000
y 0.000 -30.373 0.000
z 0.000 0.000 -28.249
Traceless
 xyz
x 1.877 0.000 0.000
y 0.000 -2.532 0.000
z 0.000 0.000 0.654
Polar
3z2-r21.308
x2-y22.939
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.346 0.000 0.000
y 0.000 4.650 0.000
z 0.000 0.000 6.999


<r2> (average value of r2) Å2
<r2> 86.776
(<r2>)1/2 9.315