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

using model chemistry: LSDA/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 LSDA/6-31G**
 hartrees
Energy at 0K-407.051072
Energy at 298.15K-407.049597
HF Energy-407.051072
Nuclear repulsion energy323.505763
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 LSDA/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 2345 2301 0.00      
2 A1 590 579 0.00      
3 E 547 536 0.00      
3 E 547 536 0.00      
4 E 104 102 0.00      
4 E 104 102 0.00      
5 T1 336 330 0.00      
5 T1 336 330 0.00      
5 T1 336 330 0.00      
6 T2 2340 2296 7.62      
6 T2 2340 2296 7.62      
6 T2 2340 2296 7.62      
7 T2 1076 1056 22.88      
7 T2 1076 1056 22.88      
7 T2 1076 1056 22.88      
8 T2 536 526 0.01      
8 T2 536 526 0.01      
8 T2 536 526 0.01      
9 T2 138 135 11.14      
9 T2 138 135 11.14      
9 T2 138 135 11.14      

Unscaled Zero Point Vibrational Energy (zpe) 8756.2 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 8592.5 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 LSDA/6-31G**
ABC
0.05127 0.05127 0.05127

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

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.850 0.850 0.850
C3 -0.850 -0.850 0.850
C4 -0.850 0.850 -0.850
C5 0.850 -0.850 -0.850
N6 1.522 1.522 1.522
N7 -1.522 -1.522 1.522
N8 -1.522 1.522 -1.522
N9 1.522 -1.522 -1.522

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.47161.47161.47161.47162.63632.63632.63632.6363
C21.47162.40312.40312.40311.16463.42083.42083.4208
C31.47162.40312.40312.40313.42081.16463.42083.4208
C41.47162.40312.40312.40313.42083.42081.16463.4208
C51.47162.40312.40312.40313.42083.42083.42081.1646
N62.63631.16463.42083.42083.42084.30504.30504.3050
N72.63633.42081.16463.42083.42084.30504.30504.3050
N82.63633.42083.42081.16463.42084.30504.30504.3050
N92.63633.42083.42083.42081.16464.30504.30504.3050

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 LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.199      
2 C 0.411      
3 C 0.411      
4 C 0.411      
5 C 0.411      
6 N -0.361      
7 N -0.361      
8 N -0.361      
9 N -0.361      


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 -55.568 0.000 0.000
y 0.000 -55.568 0.000
z 0.000 0.000 -55.568
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 8.844 0.000 0.000
y 0.000 8.844 0.000
z 0.000 0.000 8.844


<r2> (average value of r2) Å2
<r2> 281.279
(<r2>)1/2 16.771