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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-317.105806
Energy at 298.15K 
HF Energy-317.105806
Nuclear repulsion energy212.266075
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 mPW1PW91/6-31+G**
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' 3596 3423 147.92 380.53 0.31 0.47
2 A' 2382 2267 11.41 277.26 0.10 0.18
3 A' 2193 2087 628.61 10.12 0.32 0.48
4 A' 1361 1295 3.05 48.40 0.18 0.30
5 A' 820 781 466.41 8.65 0.69 0.82
6 A' 665 633 3.75 16.50 0.07 0.12
7 A' 620 591 12.23 5.52 0.64 0.78
8 A' 590 562 0.68 0.18 0.34 0.50
9 A' 443 421 31.82 1.35 0.20 0.33
10 A' 175 167 6.88 0.15 0.60 0.75
11 A' 135 128 8.77 10.17 0.73 0.84
12 A" 2371 2257 35.97 205.13 0.75 0.86
13 A" 1247 1187 1.43 11.45 0.75 0.86
14 A" 739 703 95.99 0.43 0.75 0.86
15 A" 630 599 3.48 1.08 0.75 0.86
16 A" 424 404 9.12 5.73 0.75 0.86
17 A" 389 371 0.38 0.39 0.75 0.86
18 A" 131 125 0.00 10.69 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9455.2 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 8999.4 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 mPW1PW91/6-31+G**
ABC
0.09403 0.09372 0.04710

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.008 -0.061 0.000
C2 -0.008 1.280 0.000
N3 0.134 2.473 0.000
C4 -0.008 -0.762 1.242
C5 -0.008 -0.762 -1.242
N6 -0.008 -1.330 2.254
N7 -0.008 -1.330 -2.254
H8 -0.641 3.130 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34142.53821.42581.42582.58652.58653.2533
C21.34141.20132.39022.39023.44873.44871.9551
N32.53821.20133.46823.46824.42324.42321.0160
C41.42582.39023.46822.48311.16073.54124.1341
C51.42582.39023.46822.48313.54121.16074.1341
N62.58653.44874.42321.16073.54124.50755.0371
N72.58653.44874.42323.54121.16074.50755.0371
H83.25331.95511.01604.13414.13415.03715.0371

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.228 C1 C4 N6 179.846
C1 C5 N7 179.846 C2 C1 C4 119.452
C2 C1 C5 119.452 C2 N3 H8 123.498
C4 C1 C5 121.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.707      
2 C 0.084      
3 N -0.476      
4 C 0.101      
5 C 0.101      
6 N -0.434      
7 N -0.434      
8 H 0.351      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.432 5.425 0.000 5.610
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.275 -4.889 0.000
y -4.889 -34.810 0.000
z 0.000 0.000 -53.216
Traceless
 xyz
x 5.738 -4.889 0.000
y -4.889 10.936 0.000
z 0.000 0.000 -16.674
Polar
3z2-r2-33.347
x2-y2-3.465
xy-4.889
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.797 0.106 0.000
y 0.106 12.920 0.000
z 0.000 0.000 10.197


<r2> (average value of r2) Å2
<r2> 210.652
(<r2>)1/2 14.514