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All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: CCD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-443.407031
Energy at 298.15K-443.405868
HF Energy-442.416305
Nuclear repulsion energy372.792175
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 CCD/3-21G*
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 2310 2209 0.00      
2 Ag 1619 1549 0.00      
3 Ag 625 597 0.00      
4 Ag 543 520 0.00      
5 Ag 132 127 0.00      
6 Au 545 521 0.00      
7 Au 85 81 0.00      
8 B1g 462 442 0.00      
9 B1u 2320 2219 16.49      
10 B1u 971 929 18.05      
11 B1u 622 595 0.02      
12 B1u 170 163 11.16      
13 B2g 839 802 0.00      
14 B2g 295 282 0.00      
15 B2u 2316 2216 45.79      
16 B2u 1128 1079 28.51      
17 B2u 490 469 0.24      
18 B2u 113 108 3.07      
19 B3g 2310 2210 0.00      
20 B3g 1286 1230 0.00      
21 B3g 554 530 0.00      
22 B3g 295 282 0.00      
23 B3u 691 661 0.16      
24 B3u 167 159 19.22      

Unscaled Zero Point Vibrational Energy (zpe) 10443.3 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 9989.0 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 CCD/3-21G*
ABC
0.04892 0.04805 0.02424

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.680
C2 0.000 0.000 -0.680
C3 0.000 1.230 1.437
C4 0.000 -1.230 1.437
C5 0.000 1.230 -1.437
C6 0.000 -1.230 -1.437
N7 0.000 2.218 2.059
N8 0.000 -2.218 2.059
N9 0.000 2.218 -2.059
N10 0.000 -2.218 -2.059

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.35931.44421.44422.44792.44792.61202.61203.52443.5244
C21.35932.44792.44791.44421.44423.52443.52442.61202.6120
C31.44422.44792.45952.87383.78261.16783.50333.63334.9102
C41.44422.44792.45953.78262.87383.50331.16784.91023.6333
C52.44791.44422.87383.78262.45953.63334.91021.16783.5033
C62.44791.44423.78262.87382.45954.91023.63333.50331.1678
N72.61203.52441.16783.50333.63334.91024.43564.11896.0531
N82.61203.52443.50331.16784.91023.63334.43566.05314.1189
N93.52442.61203.63334.91021.16783.50334.11896.05314.4356
N103.52442.61204.91023.63333.50331.16786.05314.11894.4356

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.623 C1 C2 C6 121.623
C1 C3 N7 179.411 C1 C4 N8 179.411
C2 C1 C3 121.623 C2 C1 C4 121.623
C2 C5 N9 179.411 C2 C6 N10 179.411
C3 C1 C4 116.753 C5 C2 C6 116.753
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability