return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6N4 (Tetracyanoethylene)

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-446.313645
Energy at 298.15K-446.311901
HF Energy-444.911762
Nuclear repulsion energy374.900270
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 MP3=FULL/6-31G*
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 2458 2307 0.00      
2 Ag 1684 1580 0.00      
3 Ag 614 576 0.00      
4 Ag 545 511 0.00      
5 Ag 119 111 0.00      
6 Au 458 429 0.00      
7 Au 79 74 0.00      
8 B1g 376 353 0.00      
9 B1u 2467 2315 7.26      
10 B1u 988 927 13.52      
11 B1u 593 556 1.31      
12 B1u 147 138 14.63      
13 B2g 653 613 0.00      
14 B2g 256 240 0.00      
15 B2u 2460 2309 28.27      
16 B2u 1197 1123 37.85      
17 B2u 440 413 0.00      
18 B2u 107 100 3.96      
19 B3g 2455 2304 0.00      
20 B3g 1342 1259 0.00      
21 B3g 522 490 0.00      
22 B3g 250 235 0.00      
23 B3u 585 549 2.23      
24 B3u 154 145 28.30      

Unscaled Zero Point Vibrational Energy (zpe) 10473.4 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 9827.2 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 MP3=FULL/6-31G*
ABC
0.04925 0.04869 0.02448

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.678
C2 0.000 0.000 -0.678
C3 0.000 1.226 1.434
C4 0.000 -1.226 1.434
C5 0.000 1.226 -1.434
C6 0.000 -1.226 -1.434
N7 0.000 2.205 2.053
N8 0.000 -2.205 2.053
N9 0.000 2.205 -2.053
N10 0.000 -2.205 -2.053

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.35581.44091.44092.44252.44252.59882.59883.51013.5101
C21.35582.44252.44251.44091.44093.51013.51012.59882.5988
C31.44092.44252.45282.86873.77431.15793.48693.62224.8926
C41.44092.44252.45283.77432.86873.48691.15794.89263.6222
C52.44251.44092.86873.77432.45283.62224.89261.15793.4869
C62.44251.44093.77432.86872.45284.89263.62223.48691.1579
N72.59883.51011.15793.48693.62224.89264.41034.10616.0259
N82.59883.51013.48691.15794.89263.62224.41036.02594.1061
N93.51012.59883.62224.89261.15793.48694.10616.02594.4103
N103.51012.59884.89263.62223.48691.15796.02594.10614.4103

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.667 C1 C2 C6 121.667
C1 C3 N7 179.368 C1 C4 N8 179.368
C2 C1 C3 121.667 C2 C1 C4 121.667
C2 C5 N9 179.368 C2 C6 N10 179.368
C3 C1 C4 116.667 C5 C2 C6 116.667
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability