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

using model chemistry: B2PLYP=FULLultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULLultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-316.976590
Energy at 298.15K 
HF Energy-316.582376
Nuclear repulsion energy212.377477
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 B2PLYP=FULLultrafine/6-31G(2df,p)
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 132.66 395.68 0.31 0.48
2 A' 2295 2295 5.73 191.48 0.11 0.19
3 A' 2165 2165 489.89 7.62 0.25 0.40
4 A' 1333 1333 1.45 44.87 0.23 0.37
5 A' 835 835 475.89 8.93 0.66 0.80
6 A' 657 657 1.38 14.37 0.09 0.17
7 A' 648 648 17.29 4.35 0.66 0.79
8 A' 587 587 0.17 0.25 0.50 0.67
9 A' 462 462 35.53 1.50 0.41 0.58
10 A' 181 181 7.66 0.33 0.72 0.83
11 A' 137 137 9.11 7.83 0.73 0.84
12 A" 2290 2290 13.41 154.77 0.75 0.86
13 A" 1225 1225 0.83 7.42 0.75 0.86
14 A" 746 746 82.31 1.27 0.75 0.86
15 A" 631 631 2.97 0.67 0.75 0.86
16 A" 440 440 7.47 3.82 0.75 0.86
17 A" 400 400 0.57 0.15 0.75 0.86
18 A" 134 134 0.02 9.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9369.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9369.2 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 B2PLYP=FULLultrafine/6-31G(2df,p)
ABC
0.09425 0.09379 0.04717

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 -0.060 0.000
C2 -0.006 1.277 0.000
N3 0.127 2.472 0.000
C4 -0.006 -0.760 1.240
C5 -0.006 -0.760 -1.240
N6 -0.006 -1.329 2.254
N7 -0.006 -1.329 -2.254
H8 -0.652 3.123 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33702.53511.42341.42342.58662.58663.2478
C21.33701.20202.38432.38433.44563.44561.9556
N32.53511.20203.46353.46354.42084.42081.0151
C41.42342.38433.46352.47911.16323.53944.1266
C51.42342.38433.46352.47913.53941.16324.1266
N62.58663.44564.42081.16323.53944.50755.0318
N72.58663.44564.42083.53941.16324.50755.0318
H83.24781.95561.01514.12664.12665.03185.0318

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.644 C1 C4 N6 179.873
C1 C5 N7 179.873 C2 C1 C4 119.445
C2 C1 C5 119.445 C2 N3 H8 123.571
C4 C1 C5 121.110
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.199      
2 C 0.401      
3 N -0.435      
4 C 0.212      
5 C 0.212      
6 N -0.260      
7 N -0.260      
8 H 0.328      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.303 5.241 0.000 5.400
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.253 -4.434 0.000
y -4.434 -34.087 0.045
z 0.000 0.045 -51.940
Traceless
 xyz
x 5.761 -4.434 0.000
y -4.434 10.509 0.045
z 0.000 0.045 -16.270
Polar
3z2-r2-32.541
x2-y2-3.165
xy-4.434
xz0.000
yz0.045


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.177 -0.047 -0.000
y -0.047 12.003 -0.003
z -0.000 -0.003 9.107


<r2> (average value of r2) Å2
<r2> 209.738
(<r2>)1/2 14.482