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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-445.942945
Energy at 298.15K-445.941534
HF Energy-444.916684
Nuclear repulsion energy377.254017
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 2530 2342 0.00      
2 Ag 1777 1645 0.00      
3 Ag 641 593 0.00      
4 Ag 570 527 0.00      
5 Ag 127 117 0.00      
6 Au 492 456 0.00      
7 Au 83 77 0.00      
8 B1g 402 373 0.00      
9 B1u 2539 2351 0.98      
10 B1u 1022 946 11.30      
11 B1u 626 580 3.13      
12 B1u 156 144 15.26      
13 B2g 736 681 0.00      
14 B2g 275 255 0.00      
15 B2u 2534 2346 18.42      
16 B2u 1229 1138 46.69      
17 B2u 472 437 0.04      
18 B2u 113 105 4.46      
19 B3g 2532 2344 0.00      
20 B3g 1385 1282 0.00      
21 B3g 546 506 0.00      
22 B3g 268 248 0.00      
23 B3u 628 582 3.02      
24 B3u 162 150 31.74      

Unscaled Zero Point Vibrational Energy (zpe) 10922.2 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 10111.8 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 CISD/6-31G*
ABC
0.04965 0.04940 0.02476

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 0.671
C2 0.000 0.000 -0.671
C3 0.000 1.222 1.425
C4 0.000 -1.222 1.425
C5 0.000 1.222 -1.425
C6 0.000 -1.222 -1.425
N7 0.000 2.191 2.038
N8 0.000 -2.191 2.038
N9 0.000 2.191 -2.038
N10 0.000 -2.191 -2.038

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.34101.43591.43592.42582.42582.58262.58263.48353.4835
C21.34102.42582.42581.43591.43593.48353.48352.58262.5826
C31.43592.42582.44312.85053.75421.14673.46723.59604.8618
C41.43592.42582.44313.75422.85053.46721.14674.86183.5960
C52.42581.43592.85053.75422.44313.59604.86181.14673.4672
C62.42581.43593.75422.85052.44314.86183.59603.46721.1467
N72.58263.48351.14673.46723.59604.86184.38234.07515.9842
N82.58263.48353.46721.14674.86183.59604.38235.98424.0751
N93.48352.58263.59604.86181.14673.46724.07515.98424.3823
N103.48352.58264.86183.59603.46721.14675.98424.07514.3823

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.709 C1 C2 C6 121.709
C1 C3 N7 179.435 C1 C4 N8 179.435
C2 C1 C3 121.709 C2 C1 C4 121.709
C2 C5 N9 179.435 C2 C6 N10 179.435
C3 C1 C4 116.583 C5 C2 C6 116.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability