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 CuCN (Copper cyanide)

using model chemistry: wB97X-D/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
2 1 yes CS 3Π

State 1 (1Σ)

Jump to S2C1
Energy calculated at wB97X-D/6-311G**
 hartrees
Energy at 0K-1733.252363
Energy at 298.15K 
HF Energy-1733.252363
Nuclear repulsion energy106.489056
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 wB97X-D/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2310 2210 4.83      
2 Σ 518 495 11.49      
3 Π 241 231 8.90      
3 Π 241 231 8.90      

Unscaled Zero Point Vibrational Energy (zpe) 1655.4 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 1583.3 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 wB97X-D/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cu1 0.000 0.000 0.753
C2 0.000 0.000 -1.058
N3 0.000 0.000 -2.214

Atom - Atom Distances (Å)
  Cu1 C2 N3
Cu11.81122.9678
C21.81121.1565
N32.96781.1565

picture of Copper cyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cu1 C2 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cu 0.710      
2 C -0.415      
3 N -0.296      


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 7.698 7.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.887 0.000 0.000
y 0.000 -22.887 0.000
z 0.000 0.000 -28.562
Traceless
 xyz
x 2.837 0.000 0.000
y 0.000 2.837 0.000
z 0.000 0.000 -5.675
Polar
3z2-r2-11.349
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.929 0.000 0.000
y 0.000 1.929 0.000
z 0.000 0.000 6.827


<r2> (average value of r2) Å2
<r2> 72.717
(<r2>)1/2 8.527

State 2 (3Π)

Jump to S1C1
Energy calculated at wB97X-D/6-311G**
 hartrees
Energy at 0K-1733.161307
Energy at 298.15K 
HF Energy-1733.161307
Nuclear repulsion energy102.117366
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 wB97X-D/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2305 2205 16.72      
2 Σ 440 421 46.04      
3 Π 200 191 0.01      
3 Π 200 191 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 1572.1 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 1503.7 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 wB97X-D/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cu1 0.000 0.000 0.784
C2 0.000 0.000 -1.126
N3 0.000 0.000 -2.282

Atom - Atom Distances (Å)
  Cu1 C2 N3
Cu11.91003.0662
C21.91001.1562
N33.06621.1562

picture of Copper cyanide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cu 0.659      
2 C -0.374      
3 N -0.285      


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 5.450 5.450
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.219 0.000 0.000
y 0.000 -24.219 0.000
z 0.000 0.000 -33.655
Traceless
 xyz
x 4.718 0.000 0.000
y 0.000 4.718 0.000
z 0.000 0.000 -9.436
Polar
3z2-r2-18.872
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.817 0.000 0.000
y 0.000 1.817 0.000
z 0.000 0.000 5.799


<r2> (average value of r2) Å2
<r2> 79.417
(<r2>)1/2 8.912