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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-52.702865
Energy at 298.15K 
HF Energy-52.702865
Nuclear repulsion energy99.986291
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3538 3447 129.63 518.70 0.32 0.48
2 A' 2226 2169 8.43 267.41 0.10 0.18
3 A' 2110 2056 541.65 12.75 0.35 0.52
4 A' 1291 1258 4.48 50.18 0.21 0.35
5 A' 702 684 652.55 15.25 0.47 0.64
6 A' 636 620 5.77 19.08 0.09 0.17
7 A' 626 610 2.57 8.88 0.75 0.86
8 A' 583 568 0.18 0.03 0.65 0.79
9 A' 428 417 18.31 0.73 0.24 0.39
10 A' 177 172 4.41 0.27 0.72 0.84
11 A' 136 133 6.27 11.09 0.73 0.84
12 A" 2218 2161 33.61 213.77 0.75 0.86
13 A" 1193 1162 4.75 8.02 0.75 0.86
14 A" 745 726 129.56 0.93 0.75 0.86
15 A" 619 603 2.98 0.67 0.75 0.86
16 A" 409 399 8.66 6.31 0.75 0.86
17 A" 381 371 0.11 0.36 0.75 0.86
18 A" 133 130 0.20 12.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9073.7 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 8842.3 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 B3LYP/CEP-121G
ABC
0.09163 0.09029 0.04560

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.057 0.000
C2 -0.014 1.306 0.000
N3 0.152 2.513 0.000
C4 -0.014 -0.772 1.254
C5 -0.014 -0.772 -1.254
N6 -0.014 -1.364 2.281
N7 -0.014 -1.364 -2.281
H8 -0.517 3.283 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.36342.57551.44311.44312.62902.62903.3780
C21.36341.21822.42702.42703.51193.51192.0399
N32.57551.21823.52003.52004.50134.50131.0201
C41.44312.42703.52002.50731.18593.58414.2742
C51.44312.42703.52002.50733.58411.18594.2742
N62.62903.51194.50131.18593.58414.56255.2012
N72.62903.51194.50133.58411.18594.56255.2012
H83.37802.03991.02014.27424.27425.20125.2012

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.142 C1 C4 N6 179.749
C1 C5 N7 179.749 C2 C1 C4 119.690
C2 C1 C5 119.690 C2 N3 H8 131.184
C4 C1 C5 120.619
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.324      
2 C -0.289      
3 N 0.103      
4 C -0.531      
5 C -0.531      
6 N 0.290      
7 N 0.290      
8 H 0.345      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.472 5.932 0.000 6.112
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.806 -5.014 0.000
y -5.014 -33.422 0.000
z 0.000 0.000 -53.923
Traceless
 xyz
x 4.867 -5.014 0.000
y -5.014 12.942 0.000
z 0.000 0.000 -17.809
Polar
3z2-r2-35.618
x2-y2-5.384
xy-5.014
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.932 0.172 0.000
y 0.172 12.981 0.000
z 0.000 0.000 9.657


<r2> (average value of r2) Å2
<r2> 163.827
(<r2>)1/2 12.799