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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-316.823392
Energy at 298.15K 
HF Energy-316.823392
Nuclear repulsion energy210.453070
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 PBEPBE/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' 3447 3400 65.14 544.00 0.32 0.48
2 A' 2269 2238 3.86 207.87 0.13 0.23
3 A' 2120 2090 430.71 8.42 0.31 0.48
4 A' 1302 1284 5.36 38.69 0.21 0.35
5 A' 846 835 424.89 11.09 0.73 0.84
6 A' 647 638 1.98 16.03 0.10 0.19
7 A' 598 590 8.47 4.91 0.71 0.83
8 A' 567 559 0.36 0.15 0.44 0.61
9 A' 414 408 22.48 1.11 0.36 0.53
10 A' 169 167 6.22 0.18 0.66 0.80
11 A' 128 126 7.34 10.05 0.73 0.84
12 A" 2256 2225 18.83 183.07 0.75 0.86
13 A" 1198 1182 0.73 5.54 0.75 0.86
14 A" 707 698 86.32 2.34 0.75 0.86
15 A" 601 592 1.90 0.61 0.75 0.86
16 A" 405 399 8.53 5.88 0.75 0.86
17 A" 370 365 0.30 0.37 0.75 0.86
18 A" 123 122 0.01 11.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9083.3 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 8958.9 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 PBEPBE/6-31G**
ABC
0.09250 0.09230 0.04637

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 -0.062 0.000
C2 -0.010 1.291 0.000
N3 0.149 2.496 0.000
C4 -0.010 -0.765 1.246
C5 -0.010 -0.765 -1.246
N6 -0.010 -1.345 2.270
N7 -0.010 -1.345 -2.270
H8 -0.643 3.152 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.35302.56311.43091.43092.60752.60753.2749
C21.35301.21562.40422.40423.47873.47871.9647
N32.56311.21563.49483.49484.46464.46461.0272
C41.43092.40423.49482.49261.17663.56384.1581
C51.43092.40423.49482.49263.56381.17664.1581
N62.60753.47874.46461.17663.56384.54015.0763
N72.60753.47874.46463.56381.17664.54015.0763
H83.27491.96471.02724.15814.15815.07635.0763

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.477 C1 C4 N6 179.890
C1 C5 N7 179.890 C2 C1 C4 119.425
C2 C1 C5 119.425 C2 N3 H8 122.105
C4 C1 C5 121.150
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.009      
2 C 0.470      
3 N -0.557      
4 C 0.342      
5 C 0.342      
6 N -0.451      
7 N -0.451      
8 H 0.313      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.355 5.134 0.000 5.310
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.365 -4.561 0.000
y -4.561 -33.736 0.000
z 0.000 0.000 -51.045
Traceless
 xyz
x 5.025 -4.561 0.000
y -4.561 10.469 0.000
z 0.000 0.000 -15.495
Polar
3z2-r2-30.989
x2-y2-3.629
xy-4.561
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.633 -0.037 0.000
y -0.037 12.266 0.000
z 0.000 0.000 9.512


<r2> (average value of r2) Å2
<r2> 212.701
(<r2>)1/2 14.584