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All results from a given calculation for HN=C=C(CN)2 (Dicyanoketenimine)

using model chemistry: B3PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-317.155159
Energy at 298.15K 
HF Energy-317.155159
Nuclear repulsion energy213.245469
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 B3PW91/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3552 3400 140.91 381.87 0.30 0.46
2 A' 2354 2254 8.33 283.03 0.09 0.16
3 A' 2170 2078 604.00 8.91 0.37 0.53
4 A' 1342 1285 1.84 43.26 0.18 0.30
5 A' 827 792 446.24 7.26 0.46 0.63
6 A' 660 631 2.62 18.88 0.06 0.11
7 A' 609 583 13.08 3.21 0.60 0.75
8 A' 591 566 0.43 0.53 0.59 0.74
9 A' 450 431 31.50 1.24 0.27 0.42
10 A' 176 168 7.36 0.19 0.66 0.79
11 A' 136 130 9.60 7.83 0.72 0.84
12 A" 2342 2242 33.00 191.28 0.75 0.86
13 A" 1229 1176 0.88 10.68 0.75 0.86
14 A" 736 705 77.80 0.63 0.75 0.86
15 A" 632 605 4.71 0.69 0.75 0.86
16 A" 420 402 7.40 2.63 0.75 0.86
17 A" 395 378 0.65 0.17 0.75 0.86
18 A" 133 127 0.00 8.69 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9377.4 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 8977.0 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 B3PW91/6-311+G(3df,2p)
ABC
0.09483 0.09457 0.04751

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 -0.060 0.000
C2 -0.007 1.276 0.000
N3 0.128 2.462 0.000
C4 -0.007 -0.759 1.238
C5 -0.007 -0.759 -1.238
N6 -0.007 -1.324 2.243
N7 -0.007 -1.324 -2.243
H8 -0.643 3.122 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33602.52621.42181.42182.57422.57423.2458
C21.33601.19422.38202.38203.43333.43331.9533
N32.52621.19423.45383.45384.40264.40261.0155
C41.42182.38203.45382.47621.15243.52634.1237
C51.42182.38203.45382.47623.52631.15244.1237
N62.57423.43334.40261.15243.52634.48545.0204
N72.57423.43334.40263.52631.15244.48545.0204
H83.24581.95331.01554.12374.12375.02045.0204

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.509 C1 C4 N6 179.897
C1 C5 N7 179.897 C2 C1 C4 119.445
C2 C1 C5 119.445 C2 N3 H8 124.056
C4 C1 C5 121.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.008      
2 C 0.687      
3 N -1.036      
4 C 0.652      
5 C 0.652      
6 N -1.097      
7 N -1.097      
8 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.260 5.385 0.000 5.531
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.968 -4.411 0.000
y -4.411 -34.569 0.000
z 0.000 0.000 -53.003
Traceless
 xyz
x 5.818 -4.411 0.000
y -4.411 10.916 0.000
z 0.000 0.000 -16.734
Polar
3z2-r2-33.468
x2-y2-3.399
xy-4.411
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.661 0.032 0.000
y 0.032 13.226 0.000
z 0.000 0.000 10.621


<r2> (average value of r2) Å2
<r2> 208.907
(<r2>)1/2 14.454