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All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: CCD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-446.302420
Energy at 298.15K-446.300675
HF Energy-444.939601
Nuclear repulsion energy371.950704
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/cc-pVDZ
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 2344 2243 0.00      
2 Ag 1674 1601 0.00      
3 Ag 604 578 0.00      
4 Ag 533 510 0.00      
5 Ag 117 112 0.00      
6 Au 451 432 0.00      
7 Au 78 75 0.00      
8 B1g 365 349 0.00      
9 B1u 2357 2255 16.29      
10 B1u 971 929 13.70      
11 B1u 586 561 0.59      
12 B1u 145 139 12.76      
13 B2g 702 672 0.00      
14 B2g 253 242 0.00      
15 B2u 2353 2251 44.58      
16 B2u 1177 1127 33.43      
17 B2u 432 413 0.02      
18 B2u 105 100 3.48      
19 B3g 2350 2248 0.00      
20 B3g 1316 1259 0.00      
21 B3g 514 492 0.00      
22 B3g 249 238 0.00      
23 B3u 578 553 1.30      
24 B3u 150 143 23.37      

Unscaled Zero Point Vibrational Energy (zpe) 10201.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9759.9 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/cc-pVDZ
ABC
0.04855 0.04789 0.02411

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.683
C2 0.000 0.000 -0.683
C3 0.000 1.236 1.445
C4 0.000 -1.236 1.445
C5 0.000 1.236 -1.445
C6 0.000 -1.236 -1.445
N7 0.000 2.221 2.069
N8 0.000 -2.221 2.069
N9 0.000 2.221 -2.069
N10 0.000 -2.221 -2.069

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.36561.45171.45172.46032.46032.61822.61823.53663.5366
C21.36562.46032.46031.45171.45173.53663.53662.61822.6182
C31.45172.46032.47152.88923.80211.16663.51263.64954.9292
C41.45172.46032.47153.80212.88923.51261.16664.92923.6495
C52.46031.45172.88923.80212.47153.64954.92921.16663.5126
C62.46031.45173.80212.88922.47154.92923.64953.51261.1666
N72.61823.53661.16663.51263.64954.92924.44184.13896.0712
N82.61823.53663.51261.16664.92923.64954.44186.07124.1389
N93.53662.61823.64954.92921.16663.51264.13896.07124.4418
N103.53662.61824.92923.64953.51261.16666.07124.13894.4418

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.653 C1 C2 C6 121.653
C1 C3 N7 179.268 C1 C4 N8 179.268
C2 C1 C3 121.653 C2 C1 C4 121.653
C2 C5 N9 179.268 C2 C6 N10 179.268
C3 C1 C4 116.694 C5 C2 C6 116.694
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability