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

using model chemistry: TPSSh/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/TZVP
 hartrees
Energy at 0K-317.301268
Energy at 298.15K 
HF Energy-317.301268
Nuclear repulsion energy212.549615
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 TPSSh/TZVP
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' 3506 3379 111.36 465.00 0.31 0.47
2 A' 2328 2243 6.72 254.96 0.11 0.20
3 A' 2151 2073 549.13 9.56 0.28 0.44
4 A' 1326 1278 3.69 45.96 0.18 0.31
5 A' 825 795 466.63 7.83 0.74 0.85
6 A' 655 631 2.91 16.33 0.08 0.15
7 A' 610 588 6.62 5.01 0.64 0.78
8 A' 593 571 0.87 0.10 0.58 0.73
9 A' 436 420 28.21 1.24 0.26 0.42
10 A' 174 168 7.10 0.16 0.68 0.81
11 A' 135 130 8.00 10.26 0.73 0.84
12 A" 2314 2230 28.20 195.64 0.75 0.86
13 A" 1211 1167 1.48 9.67 0.75 0.86
14 A" 736 709 91.92 0.96 0.75 0.86
15 A" 631 608 3.51 0.93 0.75 0.86
16 A" 416 400 8.61 5.56 0.75 0.86
17 A" 392 378 0.23 0.42 0.75 0.86
18 A" 131 126 0.00 11.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9284.6 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 8947.6 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 TPSSh/TZVP
ABC
0.09427 0.09400 0.04723

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 -0.058 0.000
C2 -0.010 1.281 0.000
N3 0.144 2.471 0.000
C4 -0.010 -0.761 1.239
C5 -0.010 -0.761 -1.239
N6 -0.010 -1.332 2.247
N7 -0.010 -1.332 -2.247
H8 -0.624 3.141 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33982.53421.42421.42422.58252.58253.2578
C21.33981.19962.38862.38863.44623.44621.9583
N32.53421.19963.46463.46464.41964.41961.0185
C41.42422.38863.46462.47791.15833.53224.1395
C51.42422.38863.46462.47793.53221.15834.1395
N62.58253.44624.41961.15833.53224.49355.0428
N72.58253.44624.41963.53221.15834.49355.0428
H83.25781.95831.01854.13954.13955.04285.0428

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.638 C1 C4 N6 179.984
C1 C5 N7 179.984 C2 C1 C4 119.548
C2 C1 C5 119.548 C2 N3 H8 123.769
C4 C1 C5 120.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.248      
2 C 0.218      
3 N -0.145      
4 C 0.011      
5 C 0.011      
6 N -0.056      
7 N -0.056      
8 H 0.264      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.375 5.394 0.000 5.567
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.565 0.066 0.000
y 0.066 12.786 0.000
z 0.000 0.000 10.041


<r2> (average value of r2) Å2
<r2> 209.995
(<r2>)1/2 14.491