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

using model chemistry: TPSSh/6-31G**

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/6-31G**
 hartrees
Energy at 0K-317.198026
Energy at 298.15K 
HF Energy-317.198026
Nuclear repulsion energy211.402128
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/6-31G**
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' 3522 3377 84.47 489.14 0.31 0.48
2 A' 2331 2234 6.84 203.47 0.13 0.23
3 A' 2153 2064 496.82 9.00 0.32 0.49
4 A' 1329 1274 5.25 42.27 0.22 0.36
5 A' 864 828 463.55 10.65 0.74 0.85
6 A' 656 629 2.15 14.44 0.10 0.19
7 A' 610 585 10.57 6.16 0.71 0.83
8 A' 583 559 0.38 0.10 0.36 0.53
9 A' 430 413 27.06 1.27 0.39 0.56
10 A' 174 167 7.02 0.20 0.69 0.81
11 A' 132 126 8.04 9.87 0.73 0.84
12 A" 2318 2222 23.88 179.10 0.75 0.86
13 A" 1218 1168 1.76 6.70 0.75 0.86
14 A" 734 704 91.99 1.92 0.75 0.86
15 A" 620 594 2.11 0.94 0.75 0.86
16 A" 416 399 8.66 6.63 0.75 0.86
17 A" 382 366 0.29 0.33 0.75 0.86
18 A" 128 122 0.00 11.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9300.2 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 8916.1 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/6-31G**
ABC
0.09319 0.09313 0.04675

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 -0.060 0.000
C2 -0.009 1.286 0.000
N3 0.142 2.485 0.000
C4 -0.009 -0.763 1.244
C5 -0.009 -0.763 -1.244
N6 -0.009 -1.337 2.261
N7 -0.009 -1.337 -2.261
H8 -0.646 3.134 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34612.54981.42931.42932.59682.59683.2567
C21.34611.20872.39732.39733.46303.46301.9544
N32.54981.20873.48173.48174.44344.44341.0203
C41.42932.39733.48172.48901.16753.55244.1399
C51.42932.39733.48172.48903.55241.16754.1399
N62.59683.46304.44341.16753.55244.52255.0503
N72.59683.46304.44343.55241.16754.52255.0503
H83.25671.95441.02034.13994.13995.05035.0503

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.812 C1 C4 N6 179.985
C1 C5 N7 179.985 C2 C1 C4 119.456
C2 C1 C5 119.456 C2 N3 H8 122.285
C4 C1 C5 121.087
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.021      
2 C 0.500      
3 N -0.595      
4 C 0.371      
5 C 0.371      
6 N -0.477      
7 N -0.477      
8 H 0.327      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.403 5.193 0.000 5.380
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 3.598 -0.035 0.000
y -0.035 11.993 0.000
z 0.000 0.000 9.213


<r2> (average value of r2) Å2
<r2> 211.294
(<r2>)1/2 14.536