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

using model chemistry: PBE1PBE/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 PBE1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-316.917427
Energy at 298.15K 
HF Energy-316.917427
Nuclear repulsion energy213.423793
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/6-311+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' 3574 3574 154.16 366.90 0.29 0.45
2 A' 2374 2374 9.66 281.03 0.09 0.16
3 A' 2186 2186 625.88 8.77 0.38 0.55
4 A' 1354 1354 1.50 42.91 0.18 0.30
5 A' 824 824 444.46 7.28 0.46 0.63
6 A' 664 664 2.80 18.66 0.06 0.11
7 A' 613 613 15.41 3.32 0.59 0.74
8 A' 595 595 0.50 0.52 0.56 0.72
9 A' 454 454 34.46 1.30 0.27 0.43
10 A' 176 176 7.40 0.20 0.66 0.80
11 A' 136 136 9.70 7.74 0.72 0.84
12 A" 2363 2363 34.31 188.24 0.75 0.86
13 A" 1242 1242 0.84 10.59 0.75 0.86
14 A" 740 740 78.46 0.58 0.75 0.86
15 A" 636 636 4.93 0.74 0.75 0.86
16 A" 424 424 7.52 2.68 0.75 0.86
17 A" 398 398 0.68 0.17 0.75 0.86
18 A" 133 133 0.00 8.58 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9442.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9442.3 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 PBE1PBE/6-311+G(3df,2p)
ABC
0.09508 0.09463 0.04759

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 -0.061 0.000
C2 -0.006 1.274 0.000
N3 0.126 2.460 0.000
C4 -0.006 -0.759 1.238
C5 -0.006 -0.759 -1.238
N6 -0.006 -1.322 2.242
N7 -0.006 -1.322 -2.242
H8 -0.649 3.116 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33482.52401.42091.42092.57222.57223.2408
C21.33481.19302.37982.37983.42983.42981.9505
N32.52401.19303.45073.45074.39804.39801.0148
C41.42092.37983.45072.47551.15133.52494.1177
C51.42092.37983.45072.47553.52491.15134.1177
N62.57223.42984.39801.15133.52494.48395.0129
N72.57223.42984.39803.52491.15134.48395.0129
H83.24081.95051.01484.11774.11775.01295.0129

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.653 C1 C4 N6 179.865
C1 C5 N7 179.865 C2 C1 C4 119.413
C2 C1 C5 119.413 C2 N3 H8 123.924
C4 C1 C5 121.174
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.869      
2 C 0.741      
3 N -1.042      
4 C 0.717      
5 C 0.717      
6 N -1.114      
7 N -1.114      
8 H 0.226      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.273 5.394 0.000 5.542
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.075 -4.445 0.000
y -4.445 -34.647 0.000
z 0.000 0.000 -53.103
Traceless
 xyz
x 5.800 -4.445 0.000
y -4.445 10.942 0.000
z 0.000 0.000 -16.742
Polar
3z2-r2-33.483
x2-y2-3.428
xy-4.445
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.650 0.027 0.000
y 0.027 13.136 0.000
z 0.000 0.000 10.548


<r2> (average value of r2) Å2
<r2> 208.661
(<r2>)1/2 14.445