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

using model chemistry: PBE1PBE/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-316.924502
Energy at 298.15K 
HF Energy-316.924502
Nuclear repulsion energy213.389997
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/aug-cc-pVTZ
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' 3562 3425 152.90 374.41 0.29 0.45
2 A' 2373 2281 9.59 286.24 0.09 0.16
3 A' 2184 2100 622.08 8.49 0.37 0.54
4 A' 1353 1301 1.48 42.86 0.18 0.30
5 A' 829 797 443.44 7.52 0.43 0.60
6 A' 664 638 2.54 19.03 0.05 0.10
7 A' 615 591 14.88 3.33 0.59 0.74
8 A' 595 572 0.49 0.55 0.59 0.74
9 A' 453 436 33.48 1.24 0.28 0.43
10 A' 175 168 7.48 0.21 0.68 0.81
11 A' 135 130 9.66 7.58 0.72 0.84
12 A" 2362 2271 34.23 186.91 0.75 0.86
13 A" 1242 1194 0.86 10.46 0.75 0.86
14 A" 738 710 77.70 0.55 0.75 0.86
15 A" 635 611 4.90 0.70 0.75 0.86
16 A" 422 406 7.44 2.47 0.75 0.86
17 A" 397 381 0.64 0.16 0.75 0.86
18 A" 132 127 0.00 8.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9431.9 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 9068.7 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/aug-cc-pVTZ
ABC
0.09512 0.09453 0.04758

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

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 0.127 2.459 0.000
C4 -0.006 -0.759 1.238
C5 -0.006 -0.759 -1.238
N6 -0.006 -1.321 2.243
N7 -0.006 -1.321 -2.243
H8 -0.649 3.113 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33502.52441.42121.42122.57262.57263.2393
C21.33501.19332.37992.37993.42993.42991.9489
N32.52441.19333.45083.45084.39794.39791.0147
C41.42122.37993.45082.47661.15153.52664.1160
C51.42122.37993.45082.47663.52661.15154.1160
N62.57263.42994.39791.15153.52664.48645.0110
N72.57263.42994.39793.52661.15154.48645.0110
H83.23931.94891.01474.11604.11605.01105.0110

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.597 C1 C4 N6 179.840
C1 C5 N7 179.840 C2 C1 C4 119.387
C2 C1 C5 119.387 C2 N3 H8 123.731
C4 C1 C5 121.226
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.133      
2 C 0.081      
3 N -0.417      
4 C 0.023      
5 C 0.023      
6 N -0.525      
7 N -0.525      
8 H 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.267 5.381 0.000 5.528
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.004 -4.421 0.000
y -4.421 -34.680 0.000
z 0.000 0.000 -53.104
Traceless
 xyz
x 5.889 -4.421 0.000
y -4.421 10.873 0.000
z 0.000 0.000 -16.762
Polar
3z2-r2-33.524
x2-y2-3.323
xy-4.421
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.718 0.019 0.000
y 0.019 13.185 0.000
z 0.000 0.000 10.602


<r2> (average value of r2) Å2
<r2> 208.703
(<r2>)1/2 14.447