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All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: TPSSh/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at TPSSh/6-31G*
 hartrees
Energy at 0K-447.537334
Energy at 298.15K-447.535587
HF Energy-447.537334
Nuclear repulsion energy374.218580
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 TPSSh/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 Ag 2314 2220 0.00      
2 Ag 1566 1503 0.00      
3 Ag 606 581 0.00      
4 Ag 531 509 0.00      
5 Ag 115 111 0.00      
6 Au 471 452 0.00      
7 Au 74 71 0.00      
8 B1g 385 369 0.00      
9 B1u 2340 2245 6.82      
10 B1u 977 937 10.07      
11 B1u 593 569 1.38      
12 B1u 143 138 10.53      
13 B2g 721 692 0.00      
14 B2g 264 253 0.00      
15 B2u 2319 2225 32.89      
16 B2u 1165 1117 31.61      
17 B2u 429 412 0.02      
18 B2u 102 98 3.38      
19 B3g 2314 2220 0.00      
20 B3g 1296 1243 0.00      
21 B3g 517 496 0.00      
22 B3g 250 240 0.00      
23 B3u 597 573 3.25      
24 B3u 151 145 25.05      

Unscaled Zero Point Vibrational Energy (zpe) 10119.7 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9708.8 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 TPSSh/6-31G*
ABC
0.04911 0.04849 0.02440

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.684
C2 0.000 0.000 -0.684
C3 0.000 1.218 1.440
C4 0.000 -1.218 1.440
C5 0.000 1.218 -1.440
C6 0.000 -1.218 -1.440
N7 0.000 2.194 2.074
N8 0.000 -2.194 2.074
N9 0.000 2.194 -2.074
N10 0.000 -2.194 -2.074

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.36871.43381.43382.44922.44922.59732.59733.52473.5247
C21.36872.44922.44921.43381.43383.52473.52472.59732.5973
C31.43382.44922.43642.88093.77301.16363.47083.64754.8986
C41.43382.44922.43643.77302.88093.47081.16364.89863.6475
C52.44921.43382.88093.77302.43643.64754.89861.16363.4708
C62.44921.43383.77302.88092.43644.89863.64753.47081.1636
N72.59733.52471.16363.47083.64754.89864.38844.14826.0387
N82.59733.52473.47081.16364.89863.64754.38846.03874.1482
N93.52472.59733.64754.89861.16363.47084.14826.03874.3884
N103.52472.59734.89863.64753.47081.16366.03874.14824.3884

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.826 C1 C2 C6 121.826
C1 C3 N7 178.833 C1 C4 N8 178.833
C2 C1 C3 121.826 C2 C1 C4 121.826
C2 C5 N9 178.833 C2 C6 N10 178.833
C3 C1 C4 116.348 C5 C2 C6 116.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability