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All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at CBS-Q
 hartrees
Energy at 0K-446.873579
Energy at 298.15K-446.863523
HF Energy-444.919359
Nuclear repulsion energy378.036342
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 2629 2629 0.00      
2 Ag 1822 1822 0.00      
3 Ag 660 660 0.00      
4 Ag 580 580 0.00      
5 Ag 134 134 0.00      
6 Au 521 521 0.00      
7 Au 86 86 0.00      
8 B1g 425 425 0.00      
9 B1u 2641 2641 1.28      
10 B1u 1037 1037 12.24      
11 B1u 649 649 5.89      
12 B1u 163 163 16.13      
13 B2g 812 812 0.00      
14 B2g 294 294 0.00      
15 B2u 2636 2636 4.75      
16 B2u 1234 1234 57.80      
17 B2u 495 495 0.24      
18 B2u 119 119 5.24      
19 B3g 2634 2634 0.00      
20 B3g 1400 1400 0.00      
21 B3g 562 562 0.00      
22 B3g 282 282 0.00      
23 B3u 660 660 3.28      
24 B3u 169 169 35.41      

Unscaled Zero Point Vibrational Energy (zpe) 11321.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11321.7 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 CBS-Q
ABC
0.04929 0.04759 0.02421

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.669
C2 0.000 0.000 -0.669
C3 0.000 1.225 1.429
C4 0.000 -1.225 1.429
C5 0.000 1.225 -1.429
C6 0.000 -1.225 -1.429
N7 0.000 2.178 2.042
N8 0.000 -2.178 2.042
N9 0.000 2.178 -2.042
N10 0.000 -2.178 -2.042

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.33781.44181.44182.42932.42932.57482.57483.47763.4776
C21.33782.42932.42931.44181.44183.47763.47762.57482.5748
C31.44182.42932.45062.85753.76441.13313.45823.59934.8611
C41.44182.42932.45063.76442.85753.45821.13314.86113.5993
C52.42931.44182.85753.76442.45063.59934.86111.13313.4582
C62.42931.44183.76442.85752.45064.86113.59933.45821.1331
N72.57483.47761.13313.45823.59934.86114.35604.08445.9713
N82.57483.47763.45821.13314.86113.59934.35605.97134.0844
N93.47762.57483.59934.86111.13313.45824.08445.97134.3560
N103.47762.57484.86113.59933.45821.13315.97134.08444.3560

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.805 C1 C2 C6 121.805
C1 C3 N7 179.027 C1 C4 N8 179.027
C2 C1 C3 121.805 C2 C1 C4 121.805
C2 C5 N9 179.027 C2 C6 N10 179.027
C3 C1 C4 116.391 C5 C2 C6 116.391
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability