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: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-447.416033
Energy at 298.15K-447.414510
HF Energy-447.416033
Nuclear repulsion energy371.431457
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 B3LYP/SDD
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 2261 2173 0.00      
2 Ag 1598 1536 0.00      
3 Ag 610 587 0.00      
4 Ag 536 515 0.00      
5 Ag 122 117 0.00      
6 Au 483 464 0.00      
7 Au 78 75 0.00      
8 B1g 402 387 0.00      
9 B1u 2286 2198 3.24      
10 B1u 981 943 16.10      
11 B1u 603 579 0.05      
12 B1u 155 149 8.49      
13 B2g 761 731 0.00      
14 B2g 280 269 0.00      
15 B2u 2273 2185 30.75      
16 B2u 1165 1120 40.33      
17 B2u 458 440 0.58      
18 B2u 108 103 2.92      
19 B3g 2266 2179 0.00      
20 B3g 1297 1247 0.00      
21 B3g 532 511 0.00      
22 B3g 269 259 0.00      
23 B3u 616 592 0.38      
24 B3u 161 154 20.48      

Unscaled Zero Point Vibrational Energy (zpe) 10150.1 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 9757.3 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 B3LYP/SDD
ABC
0.04836 0.04790 0.02406

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.687
C2 0.000 0.000 -0.687
C3 0.000 1.221 1.448
C4 0.000 -1.221 1.448
C5 0.000 1.221 -1.448
C6 0.000 -1.221 -1.448
N7 0.000 2.211 2.083
N8 0.000 -2.211 2.083
N9 0.000 2.211 -2.083
N10 0.000 -2.211 -2.083

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 N8 N9 N10
C11.37361.43941.43942.45992.45992.61512.61513.54403.5440
C21.37362.45992.45991.43941.43943.54403.54402.61512.6151
C31.43942.45992.44282.89693.78931.17573.49093.66724.9247
C41.43942.45992.44283.78932.89693.49091.17574.92473.6672
C52.45991.43942.89693.78932.44283.66724.92471.17573.4909
C62.45991.43943.78932.89692.44284.92473.66723.49091.1757
N72.61513.54401.17573.49093.66724.92474.42284.16526.0754
N82.61513.54403.49091.17574.92473.66724.42286.07544.1652
N93.54402.61513.66724.92471.17573.49094.16526.07544.4228
N103.54402.61514.92473.66723.49091.17576.07544.16524.4228

picture of Tetracyanoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 121.947 C1 C2 C6 121.947
C1 C3 N7 179.305 C1 C4 N8 179.305
C2 C1 C3 121.947 C2 C1 C4 121.947
C2 C5 N9 179.305 C2 C6 N10 179.305
C3 C1 C4 116.106 C5 C2 C6 116.106
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.262      
2 C 0.262      
3 C -0.198      
4 C -0.198      
5 C -0.198      
6 C -0.198      
7 N 0.068      
8 N 0.068      
9 N 0.068      
10 N 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.889 0.000 0.000
y 0.000 -75.471 0.000
z 0.000 0.000 -66.654
Traceless
 xyz
x 18.173 0.000 0.000
y 0.000 -15.700 0.000
z 0.000 0.000 -2.474
Polar
3z2-r2-4.947
x2-y222.582
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.846 0.000 0.000
y 0.000 15.779 0.000
z 0.000 0.000 16.687


<r2> (average value of r2) Å2
<r2> 390.817
(<r2>)1/2 19.769