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

using model chemistry: PBEPBEultrafine/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/3-21G
 hartrees
Energy at 0K-315.072647
Energy at 298.15K 
HF Energy-315.072647
Nuclear repulsion energy210.631558
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 PBEPBEultrafine/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 A' 3377 3347 92.39 605.10 0.32 0.49
2 A' 2247 2227 0.34 156.54 0.13 0.23
3 A' 2167 2147 374.54 10.43 0.34 0.51
4 A' 1293 1281 1.85 36.75 0.25 0.40
5 A' 771 764 360.89 19.64 0.59 0.74
6 A' 733 726 208.28 2.84 0.38 0.55
7 A' 650 644 1.85 14.42 0.11 0.20
8 A' 605 600 0.38 0.09 0.05 0.09
9 A' 495 491 33.77 0.70 0.73 0.84
10 A' 180 179 2.57 0.41 0.73 0.85
11 A' 146 145 5.14 9.23 0.73 0.84
12 A" 2233 2212 16.53 146.80 0.75 0.86
13 A" 1178 1168 0.06 3.46 0.75 0.86
14 A" 735 728 100.20 1.57 0.75 0.86
15 A" 642 636 7.13 0.58 0.75 0.86
16 A" 492 487 14.02 5.14 0.75 0.86
17 A" 443 439 1.18 0.16 0.75 0.86
18 A" 142 140 0.54 11.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9264.2 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 9179.9 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 PBEPBEultrafine/3-21G
ABC
0.09370 0.09156 0.04644

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 -0.057 0.000
C2 -0.001 1.295 0.000
N3 0.097 2.499 0.000
C4 -0.001 -0.762 1.237
C5 -0.001 -0.762 -1.237
N6 -0.001 -1.358 2.257
N7 -0.001 -1.358 -2.257
H8 -0.633 3.229 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.35172.55751.42431.42432.60522.60523.3461
C21.35171.20792.40092.40093.48303.48302.0348
N32.55751.20793.48973.48974.46974.46971.0324
C41.42432.40093.48972.47391.18103.54444.2267
C51.42432.40093.48972.47393.54441.18104.2267
N62.60523.48304.46971.18103.54444.51425.1511
N72.60523.48304.46973.54441.18104.51425.1511
H83.34612.03481.03244.22674.22675.15115.1511

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.350 C1 C4 N6 179.459
C1 C5 N7 179.459 C2 C1 C4 119.715
C2 C1 C5 119.715 C2 N3 H8 130.376
C4 C1 C5 120.570
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.034      
2 C 0.592      
3 N -0.711      
4 C 0.367      
5 C 0.367      
6 N -0.466      
7 N -0.466      
8 H 0.352      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.464 5.600 0.000 5.788
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.016 -4.905 0.000
y -4.905 -32.223 0.000
z 0.000 0.000 -50.897
Traceless
 xyz
x 3.544 -4.905 0.000
y -4.905 12.233 0.000
z 0.000 0.000 -15.778
Polar
3z2-r2-31.555
x2-y2-5.793
xy-4.905
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.763 -0.105 0.000
y -0.105 11.470 0.000
z 0.000 0.000 8.475


<r2> (average value of r2) Å2
<r2> 212.381
(<r2>)1/2 14.573