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All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: MP2/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/cc-pVDZ
 hartrees
Energy at 0K-446.316687
Energy at 298.15K-446.314809
HF Energy-444.920578
Nuclear repulsion energy370.783050
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/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 2127 2026 0.00      
2 Ag 1583 1508 0.00      
3 Ag 596 568 0.00      
4 Ag 521 496 0.00      
5 Ag 110 105 0.00      
6 Au 445 424 0.00      
7 Au 77 73 0.00      
8 B1g 360 343 0.00      
9 B1u 2150 2048 53.70      
10 B1u 959 913 10.23      
11 B1u 574 547 0.02      
12 B1u 141 134 11.93      
13 B2g 681 648 0.00      
14 B2g 247 235 0.00      
15 B2u 2145 2044 98.63      
16 B2u 1172 1116 21.77      
17 B2u 416 396 0.14      
18 B2u 99 94 2.93      
19 B3g 2141 2039 0.00      
20 B3g 1299 1237 0.00      
21 B3g 508 484 0.00      
22 B3g 242 231 0.00      
23 B3u 568 541 1.77      
24 B3u 145 138 21.15      

Unscaled Zero Point Vibrational Energy (zpe) 9651.7 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 9193.2 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 MP2/cc-pVDZ
ABC
0.04901 0.04723 0.02405

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.686
C2 0.000 0.000 -0.686
C3 0.000 1.229 1.441
C4 0.000 -1.229 1.441
C5 0.000 1.229 -1.441
C6 0.000 -1.229 -1.441
N7 0.000 2.226 2.071
N8 0.000 -2.226 2.071
N9 0.000 2.226 -2.071
N10 0.000 -2.226 -2.071

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.37151.44221.44222.45592.45592.62142.62143.54293.5429
C21.37152.45592.45591.44221.44223.54293.54292.62142.6214
C31.44222.45592.45782.88113.78701.17933.51153.65024.9258
C41.44222.45592.45783.78702.88113.51151.17934.92583.6502
C52.45591.44222.88113.78702.45783.65024.92581.17933.5115
C62.45591.44223.78702.88112.45784.92583.65023.51151.1793
N72.62143.54291.17933.51153.65024.92584.45114.14186.0800
N82.62143.54293.51151.17934.92583.65024.45116.08004.1418
N93.54292.62143.65024.92581.17933.51154.14186.08004.4511
N103.54292.62144.92583.65023.51151.17936.08004.14184.4511

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.559 C1 C2 C6 121.559
C1 C3 N7 179.249 C1 C4 N8 179.249
C2 C1 C3 121.559 C2 C1 C4 121.559
C2 C5 N9 179.249 C2 C6 N10 179.249
C3 C1 C4 116.882 C5 C2 C6 116.882
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability