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All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-445.456719
Energy at 298.15K-445.455275
HF Energy-444.703168
Nuclear repulsion energy374.706681
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 CISD/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 2443 2291 0.00      
2 Ag 1738 1629 0.00      
3 Ag 641 601 0.00      
4 Ag 571 535 0.00      
5 Ag 129 121 0.00      
6 Au 456 428 0.00      
7 Au 80 75 0.00      
8 B1g 370 347 0.00      
9 B1u 2449 2297 0.01      
10 B1u 1019 956 19.89      
11 B1u 630 591 0.50      
12 B1u 161 151 13.52      
13 B2g 775 727 0.00      
14 B2g 258 242 0.00      
15 B2u 2447 2295 15.75      
16 B2u 1208 1133 51.28      
17 B2u 473 444 0.28      
18 B2u 114 107 3.59      
19 B3g 2442 2290 0.00      
20 B3g 1366 1281 0.00      
21 B3g 553 518 0.00      
22 B3g 272 255 0.00      
23 B3u 622 583 0.25      
24 B3u 159 150 26.97      

Unscaled Zero Point Vibrational Energy (zpe) 10686.8 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 10022.1 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 CISD/6-31G
ABC
0.04966 0.04832 0.02449

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.677
C2 0.000 0.000 -0.677
C3 0.000 1.225 1.435
C4 0.000 -1.225 1.435
C5 0.000 1.225 -1.435
C6 0.000 -1.225 -1.435
N7 0.000 2.217 2.038
N8 0.000 -2.217 2.038
N9 0.000 2.217 -2.038
N10 0.000 -2.217 -2.038

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.35481.44001.44002.44162.44162.60132.60133.50543.5054
C21.35482.44162.44161.44001.44003.50543.50542.60132.6013
C31.44002.44162.44952.86963.77291.16133.49443.61164.8894
C41.44002.44162.44953.77292.86963.49441.16134.88943.6116
C52.44161.44002.86963.77292.44953.61164.88941.16133.4944
C62.44161.44003.77292.86962.44954.88943.61163.49441.1613
N72.60133.50541.16133.49443.61164.88944.43454.07556.0228
N82.60133.50543.49441.16134.88943.61164.43456.02284.0755
N93.50542.60133.61164.88941.16133.49444.07556.02284.4345
N103.50542.60134.88943.61163.49441.16136.02284.07554.4345

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.734 C1 C2 C6 121.734
C1 C3 N7 179.545 C1 C4 N8 179.545
C2 C1 C3 121.734 C2 C1 C4 121.734
C2 C5 N9 179.545 C2 C6 N10 179.545
C3 C1 C4 116.532 C5 C2 C6 116.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability