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

using model chemistry: BLYP/3-21G

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/3-21G
 hartrees
Energy at 0K-315.368438
Energy at 298.15K 
HF Energy-315.368438
Nuclear repulsion energy210.323591
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/3-21G
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' 3325 3307 59.38 672.33 0.32 0.49
2 A' 2235 2223 0.32 158.37 0.13 0.23
3 A' 2136 2125 363.28 10.53 0.29 0.45
4 A' 1276 1269 2.58 38.87 0.24 0.39
5 A' 793 789 508.18 19.27 0.59 0.74
6 A' 732 728 59.70 3.54 0.72 0.84
7 A' 642 639 1.28 13.98 0.11 0.20
8 A' 603 599 0.35 0.20 0.05 0.10
9 A' 488 486 28.76 0.69 0.68 0.81
10 A' 181 180 2.88 0.46 0.73 0.84
11 A' 147 147 5.16 9.16 0.73 0.84
12 A" 2218 2206 14.08 148.77 0.75 0.86
13 A" 1155 1149 0.35 4.29 0.75 0.86
14 A" 735 731 95.10 2.18 0.75 0.86
15 A" 640 636 6.31 0.65 0.75 0.86
16 A" 487 484 12.85 5.33 0.75 0.86
17 A" 439 437 0.93 0.12 0.75 0.86
18 A" 143 142 0.37 11.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9188.0 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 9137.4 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 BLYP/3-21G
ABC
0.09344 0.09120 0.04629

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 -0.055 0.000
C2 -0.001 1.298 0.000
N3 0.099 2.504 0.000
C4 -0.001 -0.765 1.240
C5 -0.001 -0.765 -1.240
N6 -0.001 -1.360 2.259
N7 -0.001 -1.360 -2.259
H8 -0.645 3.223 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.35292.56091.42931.42932.60932.60933.3399
C21.35291.21022.40732.40733.48883.48882.0291
N32.56091.21023.49793.49794.47764.47761.0342
C41.42932.40733.49792.48091.18003.54994.2252
C51.42932.40733.49792.48093.54991.18004.2252
N62.60933.48884.47761.18003.54994.51845.1498
N72.60933.48884.47763.54991.18004.51845.1498
H83.33992.02911.03424.22524.22525.14985.1498

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.235 C1 C4 N6 179.482
C1 C5 N7 179.482 C2 C1 C4 119.790
C2 C1 C5 119.790 C2 N3 H8 129.233
C4 C1 C5 120.420
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.017      
2 C 0.555      
3 N -0.675      
4 C 0.336      
5 C 0.336      
6 N -0.450      
7 N -0.450      
8 H 0.330      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.453 5.454 0.000 5.644
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.794 -4.853 0.000
y -4.853 -32.747 0.000
z 0.000 0.000 -50.847
Traceless
 xyz
x 4.003 -4.853 0.000
y -4.853 11.574 0.000
z 0.000 0.000 -15.577
Polar
3z2-r2-31.154
x2-y2-5.048
xy-4.853
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.762 -0.143 0.000
y -0.143 11.538 0.000
z 0.000 0.000 8.406


<r2> (average value of r2) Å2
<r2> 213.015
(<r2>)1/2 14.595