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

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-315.310642
Energy at 298.15K 
HF Energy-315.310642
Nuclear repulsion energy212.884836
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 B1B95/3-21G*
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' 3560 3399 221.45 420.18 0.32 0.48
2 A' 2372 2265 4.27 148.38 0.13 0.22
3 A' 2259 2157 508.99 10.61 0.50 0.66
4 A' 1355 1294 0.55 40.08 0.25 0.40
5 A' 793 757 54.75 13.99 0.69 0.81
6 A' 683 653 415.34 16.51 0.17 0.29
7 A' 671 641 127.89 7.15 0.33 0.50
8 A' 630 602 0.03 0.16 0.17 0.29
9 A' 519 495 94.30 2.06 0.69 0.82
10 A' 187 179 3.00 0.48 0.75 0.86
11 A' 152 145 5.88 8.79 0.73 0.84
12 A" 2362 2255 24.41 137.75 0.75 0.86
13 A" 1234 1178 0.14 4.80 0.75 0.86
14 A" 775 740 112.99 0.51 0.75 0.86
15 A" 671 641 11.36 1.11 0.75 0.86
16 A" 513 490 13.40 5.88 0.75 0.86
17 A" 462 441 1.77 0.12 0.75 0.86
18 A" 148 141 0.53 10.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9672.3 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 9236.1 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 B1B95/3-21G*
ABC
0.09527 0.09372 0.04736

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -0.058 0.000
C2 0.001 1.281 0.000
N3 0.079 2.469 0.000
C4 0.001 -0.758 1.230
C5 0.001 -0.758 -1.230
N6 0.001 -1.339 2.238
N7 0.001 -1.339 -2.238
H8 -0.604 3.222 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33842.52771.41511.41512.57832.57833.3348
C21.33841.19072.38082.38083.44503.44502.0332
N32.52771.19073.45413.45414.41714.41711.0166
C41.41512.38083.45412.45931.16323.51554.2092
C51.41512.38083.45412.45933.51551.16324.2092
N62.57833.44504.41711.16323.51554.47505.1158
N72.57833.44504.41713.51551.16324.47505.1158
H83.33482.03321.01664.20924.20925.11585.1158

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.239 C1 C4 N6 179.710
C1 C5 N7 179.710 C2 C1 C4 119.663
C2 C1 C5 119.663 C2 N3 H8 134.031
C4 C1 C5 120.673
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.030      
2 C 0.621      
3 N -0.755      
4 C 0.364      
5 C 0.364      
6 N -0.470      
7 N -0.470      
8 H 0.375      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.493 5.899 0.000 6.085
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.970 -4.947 0.000
y -4.947 -31.836 0.000
z 0.000 0.000 -51.544
Traceless
 xyz
x 3.720 -4.947 0.000
y -4.947 12.922 0.000
z 0.000 0.000 -16.642
Polar
3z2-r2-33.284
x2-y2-6.134
xy-4.947
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.639 -0.057 0.000
y -0.057 10.871 0.000
z 0.000 0.000 7.914


<r2> (average value of r2) Å2
<r2> 208.804
(<r2>)1/2 14.450