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

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-315.366800
Energy at 298.15K 
HF Energy-315.366800
Nuclear repulsion energy213.724172
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/aug-cc-pVDZ
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' 3753 3418 232.50 242.27 0.28 0.44
2 A' 2585 2354 30.26 251.94 0.08 0.15
3 A' 2267 2064 943.46 8.22 0.72 0.84
4 A' 1439 1310 0.34 45.12 0.18 0.31
5 A' 923 840 448.83 8.16 0.54 0.70
6 A' 691 629 1.94 16.35 0.05 0.10
7 A' 669 609 31.66 7.18 0.56 0.72
8 A' 644 586 0.37 0.10 0.54 0.70
9 A' 496 451 50.46 1.57 0.31 0.48
10 A' 187 170 10.36 0.28 0.71 0.83
11 A' 151 137 11.97 7.06 0.72 0.84
12 A" 2580 2349 55.30 147.81 0.75 0.86
13 A" 1314 1197 5.79 8.24 0.75 0.86
14 A" 798 727 89.82 0.13 0.75 0.86
15 A" 690 628 5.38 1.68 0.75 0.86
16 A" 463 422 8.69 3.86 0.75 0.86
17 A" 433 395 0.88 0.19 0.75 0.86
18 A" 149 136 0.27 7.80 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10115.5 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 9211.2 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/aug-cc-pVDZ
ABC
0.09536 0.09430 0.04759

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -0.055 0.000
C2 0.001 1.276 0.000
N3 0.098 2.460 0.000
C4 0.001 -0.762 1.249
C5 0.001 -0.762 -1.249
N6 0.001 -1.317 2.241
N7 0.001 -1.317 -2.241
H8 -0.720 3.046 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33102.51671.43551.43552.57232.57233.1839
C21.33101.18792.39072.39073.42763.42761.9115
N32.51671.18793.45743.45744.39324.39321.0067
C41.43552.39073.45742.49801.13683.53414.0727
C51.43552.39073.45742.49803.53411.13684.0727
N62.57233.42764.39321.13683.53414.48254.9582
N72.57233.42764.39323.53411.13684.48254.9582
H83.18391.91151.00674.07274.07274.95824.9582

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.317 C1 C4 N6 179.681
C1 C5 N7 179.681 C2 C1 C4 119.532
C2 C1 C5 119.532 C2 N3 H8 120.935
C4 C1 C5 120.937
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 2.305      
2 C -0.388      
3 N -0.196      
4 C -0.652      
5 C -0.652      
6 N -0.271      
7 N -0.271      
8 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.455 5.387 0.000 5.580
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.428 -4.943 0.000
y -4.943 -36.648 0.000
z 0.000 0.000 -54.638
Traceless
 xyz
x 7.216 -4.943 0.000
y -4.943 9.885 0.000
z 0.000 0.000 -17.100
Polar
3z2-r2-34.200
x2-y2-1.779
xy-4.943
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.480 -0.055 0.000
y -0.055 12.357 0.000
z 0.000 0.000 9.673


<r2> (average value of r2) Å2
<r2> 209.335
(<r2>)1/2 14.468