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

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-51.501097
Energy at 298.15K 
HF Energy-51.501097
Nuclear repulsion energy102.018479
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 HF/CEP-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 A1 3315 2977 4.23 85.41 0.15 0.26
2 A1 2642 2373 0.13 125.91 0.04 0.07
3 A1 920 826 13.82 8.90 0.11 0.21
4 A1 609 547 0.59 3.50 0.01 0.01
5 A1 186 167 26.26 3.12 0.70 0.82
6 A2 401 360 0.00 0.00 0.75 0.86
7 E 2640 2371 3.07 25.23 0.75 0.86
7 E 2640 2371 3.07 25.23 0.75 0.86
8 E 1422 1277 11.75 3.57 0.75 0.86
8 E 1422 1277 11.75 3.57 0.75 0.86
9 E 1111 997 39.78 3.38 0.75 0.86
9 E 1111 997 39.78 3.38 0.75 0.86
10 E 628 564 0.12 3.87 0.75 0.86
10 E 628 564 0.12 3.87 0.75 0.86
11 E 399 359 0.33 4.56 0.75 0.86
11 E 399 359 0.33 4.56 0.75 0.86
12 E 147 132 8.53 5.34 0.75 0.86
12 E 147 132 8.53 5.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10383.4 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 9324.3 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 HF/CEP-31G*
ABC
0.09463 0.09463 0.04989

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.523
H2 0.000 0.000 1.610
C3 0.000 1.417 0.058
C4 1.227 -0.708 0.058
C5 -1.227 -0.708 0.058
N6 0.000 2.515 -0.276
N7 2.178 -1.257 -0.276
N8 -2.178 -1.257 -0.276

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.08601.49101.49101.49102.63872.63872.6387
H21.08602.10072.10072.10073.14313.14313.1431
C31.49102.10072.45362.45361.14793.46473.4647
C41.49102.10072.45362.45363.46471.14793.4647
C51.49102.10072.45362.45363.46473.46471.1479
N62.63873.14311.14793.46473.46474.35554.3555
N72.63873.14313.46471.14793.46474.35554.3555
N82.63873.14313.46473.46471.14794.35554.3555

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 178.763 C1 C4 N7 178.763
C1 C5 N8 178.763 H2 C1 C3 108.178
H2 C1 C4 108.179 H2 C1 C5 108.179
C3 C1 C4 110.732 C3 C1 C5 110.732
C4 C1 C5 110.732
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.181      
2 H 0.245      
3 C -0.556      
4 C -0.556      
5 C -0.556      
6 N 0.413      
7 N 0.413      
8 N 0.413      


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 3.054 3.054
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.562 0.000 0.000
y 0.000 -50.562 0.000
z 0.000 0.000 -35.770
Traceless
 xyz
x -7.396 0.000 0.000
y 0.000 -7.396 0.000
z 0.000 0.000 14.792
Polar
3z2-r229.584
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 7.805 0.000 0.000
y 0.000 7.805 0.000
z 0.000 0.000 4.818


<r2> (average value of r2) Å2
<r2> 152.305
(<r2>)1/2 12.341