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All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-446.339865
Energy at 298.15K-446.338006
HF Energy-444.921421
Nuclear repulsion energy371.110650
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 MP2=FULL/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 2132 2026 0.00      
2 Ag 1586 1508 0.00      
3 Ag 597 567 0.00      
4 Ag 522 496 0.00      
5 Ag 110 105 0.00      
6 Au 447 425 0.00      
7 Au 77 73 0.00      
8 B1g 362 344 0.00      
9 B1u 2155 2048 53.29      
10 B1u 961 914 10.09      
11 B1u 575 547 0.02      
12 B1u 141 134 11.95      
13 B2g 687 653 0.00      
14 B2g 248 236 0.00      
15 B2u 2150 2044 98.13      
16 B2u 1175 1117 21.63      
17 B2u 417 396 0.14      
18 B2u 99 94 2.93      
19 B3g 2145 2039 0.00      
20 B3g 1302 1237 0.00      
21 B3g 509 484 0.00      
22 B3g 243 231 0.00      
23 B3u 570 542 1.79      
24 B3u 146 139 21.20      

Unscaled Zero Point Vibrational Energy (zpe) 9677.9 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 9197.9 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 MP2=FULL/cc-pVDZ
ABC
0.04910 0.04731 0.02410

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.685
C2 0.000 0.000 -0.685
C3 0.000 1.228 1.439
C4 0.000 -1.228 1.439
C5 0.000 1.228 -1.439
C6 0.000 -1.228 -1.439
N7 0.000 2.224 2.069
N8 0.000 -2.224 2.069
N9 0.000 2.224 -2.069
N10 0.000 -2.224 -2.069

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.37031.44061.44062.45352.45352.61932.61933.53993.5399
C21.37032.45352.45351.44061.44063.53993.53992.61932.6193
C31.44062.45352.45512.87833.78311.17873.50853.64694.9213
C41.44062.45352.45513.78312.87833.50851.17874.92133.6469
C52.45351.44062.87833.78312.45513.64694.92131.17873.5085
C62.45351.44063.78312.87832.45514.92133.64693.50851.1787
N72.61933.53991.17873.50853.64694.92134.44784.13796.0750
N82.61933.53993.50851.17874.92133.64694.44786.07504.1379
N93.53992.61933.64694.92131.17873.50854.13796.07504.4478
N103.53992.61934.92133.64693.50851.17876.07504.13794.4478

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.560 C1 C2 C6 121.560
C1 C3 N7 179.262 C1 C4 N8 179.262
C2 C1 C3 121.560 C2 C1 C4 121.560
C2 C5 N9 179.262 C2 C6 N10 179.262
C3 C1 C4 116.881 C5 C2 C6 116.881
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability