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All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: CCD/TZVP

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/TZVP
 hartrees
Energy at 0K-446.455593
Energy at 298.15K 
HF Energy-445.040461
Nuclear repulsion energy375.750285
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/TZVP
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 2371 2247 0.00      
2 Ag 1669 1583 0.00      
3 Ag 608 577 0.00      
4 Ag 542 513 0.00      
5 Ag 119 113 0.00      
6 Au 413 392 0.00      
7 Au 73 69 0.00      
8 B1g 350 332 0.00      
9 B1u 2384 2260 13.65      
10 B1u 971 921 15.99      
11 B1u 577 547 0.21      
12 B1u 147 139 13.77      
13 B2g 294 278 0.00      
14 B2g 420i 398i 0.00      
15 B2u 2378 2255 43.15      
16 B2u 1173 1112 35.15      
17 B2u 441 418 0.01      
18 B2u 106 101 3.72      
19 B3g 2375 2251 0.00      
20 B3g 1319 1251 0.00      
21 B3g 517 490 0.00      
22 B3g 249 236 0.00      
23 B3u 525 497 0.68      
24 B3u 143 136 26.96      

Unscaled Zero Point Vibrational Energy (zpe) 9661.6 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 9159.2 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/TZVP
ABC
0.04948 0.04889 0.02459

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.675
C2 0.000 0.000 -0.675
C3 0.000 1.223 1.432
C4 0.000 -1.223 1.432
C5 0.000 1.223 -1.432
C6 0.000 -1.223 -1.432
N7 0.000 2.201 2.043
N8 0.000 -2.201 2.043
N9 0.000 2.201 -2.043
N10 0.000 -2.201 -2.043

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.35101.43831.43832.43672.43672.59112.59113.49763.4976
C21.35102.43672.43671.43831.43833.49763.49762.59112.5911
C31.43832.43672.44662.86383.76661.15283.47833.60974.8784
C41.43832.43672.44663.76662.86383.47831.15284.87843.6097
C52.43671.43832.86383.76662.44663.60974.87841.15283.4783
C62.43671.43833.76662.86382.44664.87843.60973.47831.1528
N72.59113.49761.15283.47833.60974.87844.40184.08586.0058
N82.59113.49763.47831.15284.87843.60974.40186.00584.0858
N93.49762.59113.60974.87841.15283.47834.08586.00584.4018
N103.49762.59114.87843.60973.47831.15286.00584.08584.4018

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.729 C1 C2 C6 121.729
C1 C3 N7 179.723 C1 C4 N8 179.723
C2 C1 C3 121.729 C2 C1 C4 121.729
C2 C5 N9 179.723 C2 C6 N10 179.723
C3 C1 C4 116.541 C5 C2 C6 116.541
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability