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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-409.246953
Energy at 298.15K-409.245646
HF Energy-409.246953
Nuclear repulsion energy323.610637
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 B1B95/6-31G*
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 2426 2303 0.00      
2 A1 593 563 0.00      
3 E 572 543 0.00      
3 E 572 543 0.00      
4 E 110 105 0.00      
4 E 110 105 0.00      
5 T1 350 332 0.00      
5 T1 350 332 0.00      
5 T1 350 332 0.00      
6 T2 2420 2298 6.09      
6 T2 2420 2298 6.09      
6 T2 2420 2298 6.09      
7 T2 1099 1043 34.30      
7 T2 1099 1043 34.30      
7 T2 1099 1043 34.30      
8 T2 556 527 0.04      
8 T2 556 527 0.04      
8 T2 556 527 0.04      
9 T2 145 138 12.54      
9 T2 145 138 12.54      
9 T2 145 138 12.54      

Unscaled Zero Point Vibrational Energy (zpe) 9046.1 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 8587.4 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 B1B95/6-31G*
ABC
0.05122 0.05122 0.05122

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.854 0.854 0.854
C3 -0.854 -0.854 0.854
C4 -0.854 0.854 -0.854
C5 0.854 -0.854 -0.854
N6 1.521 1.521 1.521
N7 -1.521 -1.521 1.521
N8 -1.521 1.521 -1.521
N9 1.521 -1.521 -1.521

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.47941.47941.47941.47942.63422.63422.63422.6342
C21.47942.41592.41592.41591.15483.42433.42433.4243
C31.47942.41592.41592.41593.42431.15483.42433.4243
C41.47942.41592.41592.41593.42433.42431.15483.4243
C51.47942.41592.41592.41593.42433.42433.42431.1548
N62.63421.15483.42433.42433.42434.30164.30164.3016
N72.63423.42431.15483.42433.42434.30164.30164.3016
N82.63423.42433.42431.15483.42434.30164.30164.3016
N92.63423.42433.42433.42431.15484.30164.30164.3016

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 B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.211      
2 C 0.431      
3 C 0.431      
4 C 0.431      
5 C 0.431      
6 N -0.378      
7 N -0.378      
8 N -0.378      
9 N -0.378      


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 -55.780 0.000 0.000
y 0.000 -55.780 0.000
z 0.000 0.000 -55.780
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 8.540 0.000 0.000
y 0.000 8.540 0.000
z 0.000 0.000 8.540


<r2> (average value of r2) Å2
<r2> 281.658
(<r2>)1/2 16.783