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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-316.834678
Energy at 298.15K 
HF Energy-316.834678
Nuclear repulsion energy212.884939
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/6-31G(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' 3581 3427 137.59 384.05 0.31 0.47
2 A' 2383 2281 9.07 206.34 0.11 0.20
3 A' 2196 2102 557.53 7.42 0.37 0.54
4 A' 1355 1296 1.59 39.94 0.21 0.35
5 A' 832 796 445.84 7.40 0.71 0.83
6 A' 666 637 2.25 14.29 0.09 0.16
7 A' 634 607 17.38 3.92 0.68 0.81
8 A' 594 569 0.18 0.25 0.47 0.64
9 A' 459 439 35.79 1.29 0.43 0.60
10 A' 180 172 7.89 0.24 0.70 0.83
11 A' 135 130 9.18 8.06 0.73 0.84
12 A" 2373 2271 27.56 163.94 0.75 0.86
13 A" 1244 1190 0.88 7.34 0.75 0.86
14 A" 743 711 82.36 1.13 0.75 0.86
15 A" 634 606 3.39 0.82 0.75 0.86
16 A" 435 417 8.08 3.86 0.75 0.86
17 A" 401 384 0.58 0.18 0.75 0.86
18 A" 131 126 0.02 9.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9488.2 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 9080.3 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/6-31G(2df,p)
ABC
0.09476 0.09407 0.04737

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 -0.062 0.000
C2 -0.006 1.275 0.000
N3 0.126 2.466 0.000
C4 -0.006 -0.760 1.240
C5 -0.006 -0.760 -1.240
N6 -0.006 -1.324 2.249
N7 -0.006 -1.324 -2.249
H8 -0.658 3.111 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33702.53101.42271.42272.57902.57903.2399
C21.33701.19782.38262.38263.43703.43701.9489
N32.53101.19783.45773.45774.40854.40851.0158
C41.42272.38263.45772.48001.15633.53464.1168
C51.42272.38263.45772.48003.53461.15634.1168
N62.57903.43704.40851.15633.53464.49855.0156
N72.57903.43704.40853.53461.15634.49855.0156
H83.23991.94891.01584.11684.11685.01565.0156

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.702 C1 C4 N6 179.850
C1 C5 N7 179.850 C2 C1 C4 119.358
C2 C1 C5 119.358 C2 N3 H8 123.185
C4 C1 C5 121.284
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.214      
2 C 0.466      
3 N -0.498      
4 C 0.285      
5 C 0.285      
6 N -0.330      
7 N -0.330      
8 H 0.335      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.316 5.229 0.000 5.392
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.070 -4.464 0.000
y -4.464 -33.858 0.000
z 0.000 0.000 -51.582
Traceless
 xyz
x 5.650 -4.464 0.000
y -4.464 10.468 0.000
z 0.000 0.000 -16.118
Polar
3z2-r2-32.236
x2-y2-3.212
xy-4.464
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.206 -0.064 0.000
y -0.064 11.907 0.000
z 0.000 0.000 9.280


<r2> (average value of r2) Å2
<r2> 208.796
(<r2>)1/2 14.450