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 HOCN (cyanic acid)

using model chemistry: B97D3/aug-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 B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-168.607198
Energy at 298.15K-168.608100
HF Energy-168.607198
Nuclear repulsion energy57.920858
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 B97D3/aug-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' 3679 3622 122.84      
2 A' 2296 2261 118.52      
3 A' 1220 1202 81.17      
4 A' 1063 1047 76.67      
5 A' 440 434 12.31      
6 A" 495 488 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 4597.1 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 4526.7 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 B97D3/aug-cc-pVTZ
ABC
22.41676 0.35125 0.34583

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.014 1.343 0.000
C2 0.000 0.179 0.000
O3 -0.108 -1.118 0.000
H4 0.770 -1.531 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.16392.46472.9725
C21.16391.30241.8762
O32.46471.30240.9708
H42.97251.87620.9708

picture of cyanic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 O3 175.907 C2 O3 H4 110.401
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.252      
2 C 0.175      
3 O -0.121      
4 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.430 -3.668 0.000 3.937
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.233 -2.839 0.000
y -2.839 -18.598 0.000
z 0.000 0.000 -16.934
Traceless
 xyz
x 2.532 -2.839 0.000
y -2.839 -2.514 0.000
z 0.000 0.000 -0.018
Polar
3z2-r2-0.036
x2-y23.364
xy-2.839
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.765 -0.128 0.000
y -0.128 4.972 0.000
z 0.000 0.000 2.628


<r2> (average value of r2) Å2
<r2> 36.434
(<r2>)1/2 6.036