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

using model chemistry: MP3/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-408.625521
Energy at 298.15K-408.624327
HF Energy-407.166205
Nuclear repulsion energy324.255676
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/cc-pVTZ
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 2478 2341 0.00      
2 A1 595 562 0.00      
3 E 587 554 0.00      
3 E 587 554 0.00      
4 E 114 107 0.00      
4 E 114 107 0.00      
5 T1 340 321 0.00      
5 T1 340 321 0.00      
5 T1 340 321 0.00      
6 T2 2464 2328 7.53      
6 T2 2464 2328 7.53      
6 T2 2464 2328 7.53      
7 T2 1120 1058 35.51      
7 T2 1120 1058 35.51      
7 T2 1120 1058 35.51      
8 T2 569 538 0.20      
8 T2 569 538 0.20      
8 T2 569 538 0.20      
9 T2 149 140 14.67      
9 T2 149 140 14.67      
9 T2 149 140 14.67      

Unscaled Zero Point Vibrational Energy (zpe) 9200.4 cm-1
Scaled (by 0.9447) Zero Point Vibrational Energy (zpe) 8691.6 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/cc-pVTZ
ABC
0.05135 0.05135 0.05135

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

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
C11.48301.48301.48301.48302.62812.62812.62812.6281
C21.48302.42182.42182.42181.14513.42123.42123.4212
C31.48302.42182.42182.42183.42121.14513.42123.4212
C41.48302.42182.42182.42183.42123.42121.14513.4212
C51.48302.42182.42182.42183.42123.42123.42121.1451
N62.62811.14513.42123.42123.42124.29164.29164.2916
N72.62813.42121.14513.42123.42124.29164.29164.2916
N82.62813.42123.42121.14513.42124.29164.29164.2916
N92.62813.42123.42123.42121.14514.29164.29164.2916

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