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All results from a given calculation for C(CN)4 (tetracyanomethane)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-407.186285
Energy at 298.15K-407.185591
HF Energy-407.186285
Nuclear repulsion energy327.056101
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 HF/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2635 2389 0.00      
2 A1 617 559 0.00      
3 E 651 590 0.00      
3 E 651 590 0.00      
4 E 128 116 0.00      
4 E 128 116 0.00      
5 T1 395 358 0.00      
5 T1 395 358 0.00      
5 T1 395 358 0.00      
6 T2 2628 2382 1.11      
6 T2 2628 2382 1.11      
6 T2 2628 2382 1.11      
7 T2 1184 1073 49.29      
7 T2 1184 1073 49.29      
7 T2 1184 1073 49.29      
8 T2 620 562 2.46      
8 T2 620 562 2.46      
8 T2 620 562 2.46      
9 T2 170 154 18.63      
9 T2 170 154 18.63      
9 T2 170 154 18.63      

Unscaled Zero Point Vibrational Energy (zpe) 9899.6 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 8973.0 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 HF/Def2TZVPP
ABC
0.05210 0.05210 0.05210

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.856 0.856 0.856
C3 -0.856 -0.856 0.856
C4 -0.856 0.856 -0.856
C5 0.856 -0.856 -0.856
N6 1.503 1.503 1.503
N7 -1.503 -1.503 1.503
N8 -1.503 1.503 -1.503
N9 1.503 -1.503 -1.503

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48191.48191.48191.48192.60392.60392.60392.6039
C21.48192.41992.41992.41991.12203.39833.39833.3983
C31.48192.41992.41992.41993.39831.12203.39833.3983
C41.48192.41992.41992.41993.39833.39831.12203.3983
C51.48192.41992.41992.41993.39833.39833.39831.1220
N62.60391.12203.39833.39833.39834.25224.25224.2522
N72.60393.39831.12203.39833.39834.25224.25224.2522
N82.60393.39833.39831.12203.39834.25224.25224.2522
N92.60393.39833.39833.39831.12204.25224.25224.2522

picture of tetracyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 180.000 C1 C3 N7 180.000
C1 C4 N8 180.000 C1 C5 N9 180.000
C2 C1 C3 109.471 C2 C1 C4 109.471
C2 C1 C5 109.471 C3 C1 C4 109.471
C3 C1 C5 109.471 C4 C1 C5 109.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.919      
2 C -0.203      
3 C -0.203      
4 C -0.203      
5 C -0.203      
6 N -0.026      
7 N -0.026      
8 N -0.026      
9 N -0.026      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.189 0.000 0.000
y 0.000 -58.189 0.000
z 0.000 0.000 -58.189
Traceless
 xyz
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000
Polar
3z2-r20.000
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 9.197 0.000 0.000
y 0.000 9.197 0.000
z 0.000 0.000 9.197


<r2> (average value of r2) Å2
<r2> 278.960
(<r2>)1/2 16.702