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All results from a given calculation for HOCN (cyanic acid)

using model chemistry: B3LYPultrafine/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-168.647320
Energy at 298.15K-168.648226
Nuclear repulsion energy57.888858
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/6-31+G**
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' 3769 3628 156.52      
2 A' 2377 2288 138.07      
3 A' 1219 1173 92.52      
4 A' 1100 1059 79.94      
5 A' 442 426 15.21      
6 A" 501 482 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 4703.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 4527.8 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/6-31+G**
ABC
22.59023 0.35076 0.34540

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.029 1.344 0.000
C2 0.000 0.180 0.000
O3 -0.119 -1.117 0.000
H4 0.752 -1.547 0.000

Atom - Atom Distances (Å)
  N1 C2 O3 H4
N11.16472.46592.9799
C21.16471.30261.8831
O32.46591.30260.9711
H42.97991.88310.9711

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 176.167 C2 O3 H4 110.991
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.358      
2 C 0.497      
3 O -0.531      
4 H 0.392      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.612 -3.678 0.000 4.016
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.388 -3.186 0.003
y -3.186 -18.951 -0.003
z 0.003 -0.003 -17.100
Traceless
 xyz
x 2.638 -3.186 0.003
y -3.186 -2.707 -0.003
z 0.003 -0.003 0.069
Polar
3z2-r20.139
x2-y23.563
xy-3.186
xz0.003
yz-0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.083 -0.075 0.000
y -0.075 4.743 0.004
z 0.000 0.004 1.938


<r2> (average value of r2) Å2
<r2> 36.614
(<r2>)1/2 6.051