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

using model chemistry: MP3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at MP3/TZVP
 hartrees
Energy at 0K-408.429235
Energy at 298.15K-408.427980
HF Energy-407.155878
Nuclear repulsion energy324.300744
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 MP3/TZVP
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 2493 2331 0.00      
2 A1 600 561 0.00      
3 E 576 539 0.00      
3 E 576 539 0.00      
4 E 112 105 0.00      
4 E 112 105 0.00      
5 T1 330 309 0.00      
5 T1 330 309 0.00      
5 T1 330 309 0.00      
6 T2 2479 2318 8.40      
6 T2 2479 2318 8.40      
6 T2 2479 2318 8.40      
7 T2 1129 1056 39.20      
7 T2 1129 1056 39.20      
7 T2 1129 1056 39.20      
8 T2 571 534 0.08      
8 T2 571 534 0.08      
8 T2 571 534 0.08      
9 T2 146 137 13.70      
9 T2 146 137 13.70      
9 T2 146 137 13.70      

Unscaled Zero Point Vibrational Energy (zpe) 9216.9 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 8619.7 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 MP3/TZVP
ABC
0.05137 0.05137 0.05137

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/TZVP

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 1.517 1.517 1.517
N7 -1.517 -1.517 1.517
N8 -1.517 1.517 -1.517
N9 1.517 -1.517 -1.517

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48221.48221.48221.48222.62782.62782.62782.6278
C21.48222.42052.42052.42051.14553.42043.42043.4204
C31.48222.42052.42052.42053.42041.14553.42043.4204
C41.48222.42052.42052.42053.42043.42041.14553.4204
C51.48222.42052.42052.42053.42043.42043.42041.1455
N62.62781.14553.42043.42043.42044.29124.29124.2912
N72.62783.42041.14553.42043.42044.29124.29124.2912
N82.62783.42043.42041.14553.42044.29124.29124.2912
N92.62783.42043.42043.42041.14554.29124.29124.2912

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