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

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-317.134148
Energy at 298.15K 
HF Energy-317.134148
Nuclear repulsion energy210.903293
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 BLYP/6-31G(2df,p)
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' 3405 3386 59.61 549.57 0.32 0.48
2 A' 2250 2238 2.92 215.23 0.11 0.21
3 A' 2090 2078 418.61 8.19 0.27 0.43
4 A' 1276 1269 3.51 38.69 0.21 0.34
5 A' 854 850 421.50 9.85 0.65 0.79
6 A' 638 634 1.30 16.65 0.09 0.16
7 A' 611 608 6.46 3.16 0.71 0.83
8 A' 567 564 0.12 0.38 0.63 0.77
9 A' 428 426 21.47 1.18 0.39 0.56
10 A' 177 176 7.32 0.23 0.67 0.80
11 A' 131 131 8.19 8.67 0.73 0.84
12 A" 2235 2222 18.29 175.20 0.75 0.86
13 A" 1166 1160 0.98 6.52 0.75 0.86
14 A" 715 711 74.96 2.40 0.75 0.86
15 A" 604 601 2.17 0.36 0.75 0.86
16 A" 415 413 7.31 3.53 0.75 0.86
17 A" 378 376 0.38 0.21 0.75 0.86
18 A" 128 127 0.01 10.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9034.3 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 8984.6 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 BLYP/6-31G(2df,p)
ABC
0.09296 0.09254 0.04654

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 -0.059 0.000
C2 -0.010 1.290 0.000
N3 0.146 2.492 0.000
C4 -0.010 -0.765 1.245
C5 -0.010 -0.765 -1.245
N6 -0.010 -1.343 2.263
N7 -0.010 -1.343 -2.263
H8 -0.638 3.154 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34932.55631.43131.43132.60212.60213.2745
C21.34931.21232.40262.40263.47223.47221.9673
N32.55631.21233.49023.49024.45604.45601.0264
C41.43132.40263.49022.49101.17083.55634.1598
C51.43132.40263.49022.49103.55631.17084.1598
N62.60213.47224.45601.17083.55634.52685.0739
N72.60213.47224.45603.55631.17084.52685.0739
H83.27451.96731.02644.15984.15985.07395.0739

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.591 C1 C4 N6 179.908
C1 C5 N7 179.908 C2 C1 C4 119.520
C2 C1 C5 119.520 C2 N3 H8 122.778
C4 C1 C5 120.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.061      
2 C 0.398      
3 N -0.458      
4 C 0.248      
5 C 0.248      
6 N -0.335      
7 N -0.335      
8 H 0.293      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.235 5.062 0.000 5.211
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.145 -4.243 0.000
y -4.243 -34.248 0.000
z 0.000 0.000 -51.434
Traceless
 xyz
x 5.696 -4.243 0.000
y -4.243 10.041 0.000
z 0.000 0.000 -15.737
Polar
3z2-r2-31.475
x2-y2-2.897
xy-4.243
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.242 -0.079 0.000
y -0.079 12.553 0.000
z 0.000 0.000 9.771


<r2> (average value of r2) Å2
<r2> 212.169
(<r2>)1/2 14.566