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All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: CCSD/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 CCSD/6-31G*
 hartrees
Energy at 0K-446.299754
Energy at 298.15K-446.297867
HF Energy-444.906091
Nuclear repulsion energy373.234170
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 CCSD/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 2350 2219 0.00      
2 Ag 1673 1580 0.00      
3 Ag 603 570 0.00      
4 Ag 534 504 0.00      
5 Ag 116 110 0.00      
6 Au 440 416 0.00      
7 Au 77 73 0.00      
8 B1g 361 341 0.00      
9 B1u 2361 2230 11.42      
10 B1u 971 917 11.22      
11 B1u 582 550 0.92      
12 B1u 144 136 13.55      
13 B2g 622 588 0.00      
14 B2g 247 233 0.00      
15 B2u 2357 2226 43.82      
16 B2u 1176 1110 32.20      
17 B2u 430 406 0.01      
18 B2u 104 99 3.75      
19 B3g 2354 2222 0.00      
20 B3g 1320 1247 0.00      
21 B3g 513 484 0.00      
22 B3g 246 232 0.00      
23 B3u 567 535 1.74      
24 B3u 149 141 27.01      

Unscaled Zero Point Vibrational Energy (zpe) 10148.4 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 9583.2 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 CCSD/6-31G*
ABC
0.04893 0.04822 0.02429

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.679
C2 0.000 0.000 -0.679
C3 0.000 1.230 1.438
C4 0.000 -1.230 1.438
C5 0.000 1.230 -1.438
C6 0.000 -1.230 -1.438
N7 0.000 2.215 2.060
N8 0.000 -2.215 2.060
N9 0.000 2.215 -2.060
N10 0.000 -2.215 -2.060

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.35821.44501.44502.44852.44852.61002.61003.52263.5226
C21.35822.44852.44851.44501.44503.52263.52262.61002.6100
C31.44502.44852.45922.87643.78441.16503.49993.63464.9094
C41.44502.44852.45923.78442.87643.49991.16504.90943.6346
C52.44851.44502.87643.78442.45923.63464.90941.16503.4999
C62.44851.44503.78442.87642.45924.90943.63463.49991.1650
N72.61003.52261.16503.49993.63464.90944.42924.12076.0496
N82.61003.52263.49991.16504.90943.63464.42926.04964.1207
N93.52262.61003.63464.90941.16503.49994.12076.04964.4292
N103.52262.61004.90943.63463.49991.16506.04964.12074.4292

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.689 C1 C2 C6 121.689
C1 C3 N7 179.413 C1 C4 N8 179.413
C2 C1 C3 121.689 C2 C1 C4 121.689
C2 C5 N9 179.413 C2 C6 N10 179.413
C3 C1 C4 116.621 C5 C2 C6 116.621
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability