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

using model chemistry: PBE1PBE/3-21G

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/3-21G
 hartrees
Energy at 0K-315.073241
Energy at 298.15K 
HF Energy-315.073241
Nuclear repulsion energy213.293258
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/3-21G
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 3059 2937 15.76 82.69 0.18 0.31
2 A1 2398 2303 0.27 66.01 0.06 0.12
3 A1 878 844 8.61 7.55 0.18 0.30
4 A1 610 586 0.08 3.41 0.01 0.02
5 A1 196 188 14.57 2.89 0.71 0.83
6 A2 456 438 0.00 0.00 0.75 0.86
7 E 2392 2297 1.57 24.30 0.75 0.86
7 E 2392 2297 1.57 24.30 0.75 0.86
8 E 1330 1278 0.25 5.01 0.75 0.86
8 E 1330 1278 0.25 5.01 0.75 0.86
9 E 1050 1008 22.42 3.15 0.75 0.86
9 E 1050 1008 22.42 3.15 0.75 0.86
10 E 646 620 0.07 3.43 0.75 0.86
10 E 646 620 0.07 3.43 0.75 0.86
11 E 455 437 0.04 3.82 0.75 0.86
11 E 455 437 0.04 3.82 0.75 0.86
12 E 159 152 5.00 4.87 0.75 0.86
12 E 159 152 5.00 4.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9829.1 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 9439.9 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/3-21G
ABC
0.09610 0.09610 0.05092

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.537
H2 0.000 0.000 1.640
C3 0.000 1.391 0.070
C4 1.204 -0.695 0.070
C5 -1.204 -0.695 0.070
N6 0.000 2.495 -0.291
N7 2.160 -1.247 -0.291
N8 -2.160 -1.247 -0.291

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.10381.46701.46701.46702.62842.62842.6284
H21.10382.09782.09782.09783.15503.15503.1550
C31.46702.09782.40902.40901.16143.42893.4289
C41.46702.09782.40902.40903.42891.16143.4289
C51.46702.09782.40902.40903.42893.42891.1614
N62.62843.15501.16143.42893.42894.32084.3208
N72.62843.15503.42891.16143.42894.32084.3208
N82.62843.15503.42893.42891.16144.32084.3208

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 179.565 C1 C4 N7 179.565
C1 C5 N8 179.565 H2 C1 C3 108.549
H2 C1 C4 108.549 H2 C1 C5 108.549
C3 C1 C4 110.378 C3 C1 C5 110.378
C4 C1 C5 110.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.556      
2 H 0.391      
3 C 0.484      
4 C 0.484      
5 C 0.484      
6 N -0.429      
7 N -0.429      
8 N -0.429      


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 2.805 2.805
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.666 0.000 0.000
y 0.000 -48.666 0.000
z 0.000 0.000 -35.467
Traceless
 xyz
x -6.599 0.000 0.000
y 0.000 -6.599 0.000
z 0.000 0.000 13.199
Polar
3z2-r226.398
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 6.967 0.000 0.000
y 0.000 6.967 0.000
z 0.000 0.000 4.044


<r2> (average value of r2) Å2
<r2> 199.441
(<r2>)1/2 14.122