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All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: MP2=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-440.021526
Energy at 298.15K-440.019082
HF Energy-439.188724
Nuclear repulsion energy360.538349
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/STO-3G
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 2049 1822 0.00      
2 Ag 1654 1470 0.00      
3 Ag 582 518 0.00      
4 Ag 520 462 0.00      
5 Ag 110 97 0.00      
6 Au 459 408 0.00      
7 Au 80 71 0.00      
8 B1g 357 318 0.00      
9 B1u 2044 1817 82.02      
10 B1u 943 838 3.77      
11 B1u 575 511 1.06      
12 B1u 143 127 8.94      
13 B2g 706 628 0.00      
14 B2g 243 216 0.00      
15 B2u 2059 1830 220.21      
16 B2u 1130 1004 2.99      
17 B2u 421 374 0.04      
18 B2u 93 83 2.27      
19 B3g 2049 1821 0.00      
20 B3g 1288 1145 0.00      
21 B3g 511 454 0.00      
22 B3g 251 223 0.00      
23 B3u 580 515 0.65      
24 B3u 141 126 16.19      

Unscaled Zero Point Vibrational Energy (zpe) 9494.3 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 8439.5 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/STO-3G
ABC
0.04677 0.04440 0.02278

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.688
C2 0.000 0.000 -0.688
C3 0.000 1.251 1.460
C4 0.000 -1.251 1.460
C5 0.000 1.251 -1.460
C6 0.000 -1.251 -1.460
N7 0.000 2.269 2.104
N8 0.000 -2.269 2.104
N9 0.000 2.269 -2.104
N10 0.000 -2.269 -2.104

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.37601.46961.46962.48542.48542.67472.67473.59793.5979
C21.37602.48542.48541.46961.46963.59793.59792.67472.6747
C31.46962.48542.50122.91963.84451.20523.57823.70665.0090
C41.46962.48542.50123.84452.91963.57821.20525.00903.7066
C52.48541.46962.91963.84452.50123.70665.00901.20523.5782
C62.48541.46963.84452.91962.50125.00903.70663.57821.2052
N72.67473.59791.20523.57823.70665.00904.53824.20826.1891
N82.67473.59793.57821.20525.00903.70664.53826.18914.2082
N93.59792.67473.70665.00901.20523.57824.20826.18914.5382
N103.59792.67475.00903.70663.57821.20526.18914.20824.5382

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.681 C1 C2 C6 121.681
C1 C3 N7 179.364 C1 C4 N8 179.364
C2 C1 C3 121.681 C2 C1 C4 121.681
C2 C5 N9 179.364 C2 C6 N10 179.364
C3 C1 C4 116.637 C5 C2 C6 116.637
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability