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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-315.352347
Energy at 298.15K 
HF Energy-315.352347
Nuclear repulsion energy213.370458
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 mPW1PW91/3-21G*
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 3065 2911 15.34 82.28 0.18 0.31
2 A1 2400 2279 0.27 65.81 0.06 0.12
3 A1 879 835 8.75 7.54 0.18 0.30
4 A1 610 579 0.09 3.44 0.01 0.02
5 A1 196 186 14.75 2.88 0.71 0.83
6 A2 456 433 0.00 0.00 0.75 0.86
7 E 2393 2273 1.62 24.15 0.75 0.86
7 E 2393 2273 1.62 24.15 0.75 0.86
8 E 1335 1268 0.21 4.95 0.75 0.86
8 E 1335 1268 0.21 4.95 0.75 0.86
9 E 1049 996 23.09 3.16 0.75 0.86
9 E 1049 996 23.09 3.16 0.75 0.86
10 E 646 613 0.06 3.41 0.75 0.86
10 E 646 613 0.06 3.41 0.75 0.86
11 E 455 432 0.04 3.81 0.75 0.86
11 E 455 432 0.04 3.81 0.75 0.86
12 E 159 151 5.07 4.87 0.75 0.86
12 E 159 151 5.07 4.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9839.4 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 9343.5 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 mPW1PW91/3-21G*
ABC
0.09615 0.09615 0.05094

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.536
H2 0.000 0.000 1.638
C3 0.000 1.391 0.069
C4 1.205 -0.695 0.069
C5 -1.205 -0.695 0.069
N6 0.000 2.494 -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
C11.10231.46701.46701.46702.62742.62742.6274
H21.10232.09652.09652.09653.15283.15283.1528
C31.46702.09652.40922.40921.16043.42833.4283
C41.46702.09652.40922.40923.42831.16043.4283
C51.46702.09652.40922.40923.42833.42831.1604
N62.62743.15281.16043.42833.42834.31984.3198
N72.62743.15283.42831.16043.42834.31984.3198
N82.62743.15283.42833.42831.16044.31984.3198

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 179.549 C1 C4 N7 179.549
C1 C5 N8 179.549 H2 C1 C3 108.533
H2 C1 C4 108.533 H2 C1 C5 108.533
C3 C1 C4 110.393 C3 C1 C5 110.393
C4 C1 C5 110.393
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.548      
2 H 0.390      
3 C 0.482      
4 C 0.482      
5 C 0.482      
6 N -0.430      
7 N -0.430      
8 N -0.430      


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 2.810 2.810
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.650 0.000 0.000
y 0.000 -48.650 0.000
z 0.000 0.000 -35.405
Traceless
 xyz
x -6.623 0.000 0.000
y 0.000 -6.623 0.000
z 0.000 0.000 13.245
Polar
3z2-r226.490
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 6.955 0.000 0.000
y 0.000 6.955 0.000
z 0.000 0.000 4.032


<r2> (average value of r2) Å2
<r2> 199.343
(<r2>)1/2 14.119