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All results from a given calculation for CH(CN)3 (tricyanomethane)

using model chemistry: PBE1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-316.835431
Energy at 298.15K 
HF Energy-316.835431
Nuclear repulsion energy213.463404
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 PBE1PBE/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3050 2919 12.37 80.92 0.14 0.25
2 A1 2417 2314 0.01 115.86 0.06 0.11
3 A1 849 812 3.42 6.28 0.09 0.17
4 A1 582 557 0.81 3.34 0.00 0.00
5 A1 171 164 23.29 2.29 0.70 0.82
6 A2 371 355 0.00 0.00 0.75 0.86
7 E 2412 2308 0.49 32.37 0.75 0.86
7 E 2412 2308 0.49 32.37 0.75 0.86
8 E 1279 1224 2.92 3.13 0.75 0.86
8 E 1279 1224 2.92 3.13 0.75 0.86
9 E 1045 1000 15.62 1.62 0.75 0.86
9 E 1045 1000 15.62 1.62 0.75 0.86
10 E 584 559 0.05 2.03 0.75 0.86
10 E 584 559 0.05 2.03 0.75 0.86
11 E 372 356 0.37 2.84 0.75 0.86
11 E 372 356 0.37 2.84 0.75 0.86
12 E 134 128 7.40 4.23 0.75 0.86
12 E 134 128 7.40 4.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9545.5 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 9135.0 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 PBE1PBE/6-31G(2df,p)
ABC
0.09587 0.09587 0.05043

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.501
H2 0.000 0.000 1.602
C3 0.000 1.400 0.057
C4 1.213 -0.700 0.057
C5 -1.213 -0.700 0.057
N6 0.000 2.505 -0.268
N7 2.170 -1.253 -0.268
N8 -2.170 -1.253 -0.268

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.10061.46911.46911.46912.62082.62082.6208
H21.10062.08532.08532.08533.12623.12623.1262
C31.46912.08532.42522.42521.15193.44253.4425
C41.46912.08532.42522.42523.44251.15193.4425
C51.46912.08532.42522.42523.44253.44251.1519
N62.62083.12621.15193.44253.44254.33954.3395
N72.62083.12623.44251.15193.44254.33954.3395
N82.62083.12623.44253.44251.15194.33954.3395

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 178.748 C1 C4 N7 178.748
C1 C5 N8 178.748 H2 C1 C3 107.617
H2 C1 C4 107.617 H2 C1 C5 107.617
C3 C1 C4 111.261 C3 C1 C5 111.261
C4 C1 C5 111.261
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.452      
2 H 0.264      
3 C 0.348      
4 C 0.348      
5 C 0.348      
6 N -0.286      
7 N -0.286      
8 N -0.286      


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 2.712 2.712
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.381 0.000 0.000
y 0.000 -48.381 0.000
z 0.000 0.000 -34.857
Traceless
 xyz
x -6.762 0.000 0.000
y 0.000 -6.762 0.000
z 0.000 0.000 13.524
Polar
3z2-r227.048
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.222 0.000 0.000
y 0.000 8.222 0.000
z 0.000 0.000 5.029


<r2> (average value of r2) Å2
<r2> 200.150
(<r2>)1/2 14.147