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

using model chemistry: B3LYP/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 B3LYP/6-31G**
 hartrees
Energy at 0K-409.391293
Energy at 298.15K-409.389973
HF Energy-409.391293
Nuclear repulsion energy322.148308
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 B3LYP/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 2391 2298 0.00      
2 A1 583 560 0.00      
3 E 567 545 0.00      
3 E 567 545 0.00      
4 E 112 107 0.00      
4 E 112 107 0.00      
5 T1 344 331 0.00      
5 T1 344 331 0.00      
5 T1 344 331 0.00      
6 T2 2382 2289 7.55      
6 T2 2382 2289 7.55      
6 T2 2382 2289 7.55      
7 T2 1072 1030 38.09      
7 T2 1072 1030 38.09      
7 T2 1072 1030 38.09      
8 T2 552 531 0.07      
8 T2 552 531 0.07      
8 T2 552 531 0.07      
9 T2 147 141 12.63      
9 T2 147 141 12.63      
9 T2 147 141 12.63      

Unscaled Zero Point Vibrational Energy (zpe) 8912.6 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 8563.2 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 B3LYP/6-31G**
ABC
0.05074 0.05074 0.05074

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.859 0.859 0.859
C3 -0.859 -0.859 0.859
C4 -0.859 0.859 -0.859
C5 0.859 -0.859 -0.859
N6 1.528 1.528 1.528
N7 -1.528 -1.528 1.528
N8 -1.528 1.528 -1.528
N9 1.528 -1.528 -1.528

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48761.48761.48761.48762.64592.64592.64592.6459
C21.48762.42922.42922.42921.15843.44063.44063.4406
C31.48762.42922.42922.42923.44061.15843.44063.4406
C41.48762.42922.42922.42923.44063.44061.15843.4406
C51.48762.42922.42922.42923.44063.44063.44061.1584
N62.64591.15843.44063.44063.44064.32084.32084.3208
N72.64593.44061.15843.44063.44064.32084.32084.3208
N82.64593.44063.44061.15843.44064.32084.32084.3208
N92.64593.44063.44063.44061.15844.32084.32084.3208

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 B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.144      
2 C 0.426      
3 C 0.426      
4 C 0.426      
5 C 0.426      
6 N -0.390      
7 N -0.390      
8 N -0.390      
9 N -0.390      


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 -56.114 0.000 0.000
y 0.000 -56.114 0.000
z 0.000 0.000 -56.114
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 8.605 0.000 0.000
y 0.000 8.605 0.000
z 0.000 0.000 8.605


<r2> (average value of r2) Å2
<r2> 284.185
(<r2>)1/2 16.858