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

using model chemistry: PBE1PBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/TZVP
 hartrees
Energy at 0K-316.915096
Energy at 298.15K 
HF Energy-316.915096
Nuclear repulsion energy213.335571
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 PBE1PBE/TZVP
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' 3571 3426 154.87 397.70 0.31 0.47
2 A' 2385 2289 9.99 248.64 0.11 0.19
3 A' 2200 2111 625.99 9.51 0.31 0.48
4 A' 1360 1305 1.97 46.69 0.18 0.31
5 A' 795 763 467.49 6.83 0.75 0.86
6 A' 666 639 4.52 14.81 0.08 0.15
7 A' 628 602 15.31 5.06 0.64 0.78
8 A' 602 578 0.89 0.11 0.46 0.63
9 A' 447 429 36.50 1.11 0.33 0.50
10 A' 175 168 7.32 0.18 0.70 0.83
11 A' 138 132 8.42 9.86 0.73 0.84
12 A" 2374 2278 33.31 189.16 0.75 0.86
13 A" 1244 1194 0.84 10.44 0.75 0.86
14 A" 742 712 94.77 0.53 0.75 0.86
15 A" 641 615 4.86 1.21 0.75 0.86
16 A" 425 408 8.95 5.66 0.75 0.86
17 A" 402 386 0.48 0.34 0.75 0.86
18 A" 134 128 0.00 10.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9463.7 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 9081.4 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 PBE1PBE/TZVP
ABC
0.09482 0.09476 0.04755

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 -0.059 0.000
C2 -0.007 1.276 0.000
N3 0.127 2.461 0.000
C4 -0.007 -0.759 1.236
C5 -0.007 -0.759 -1.236
N6 -0.007 -1.325 2.241
N7 -0.007 -1.325 -2.241
H8 -0.639 3.128 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33532.52421.42091.42092.57332.57333.2489
C21.33531.19292.38142.38143.43293.43291.9564
N32.52421.19293.45253.45254.40154.40151.0152
C41.42092.38143.45252.47301.15253.52294.1274
C51.42092.38143.45252.47303.52291.15254.1274
N62.57333.43294.40151.15253.52294.48145.0242
N72.57333.43294.40153.52291.15254.48145.0242
H83.24891.95641.01524.12744.12745.02425.0242

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.550 C1 C4 N6 179.869
C1 C5 N7 179.869 C2 C1 C4 119.514
C2 C1 C5 119.514 C2 N3 H8 124.562
C4 C1 C5 120.972
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.247      
2 C 0.216      
3 N -0.137      
4 C -0.013      
5 C -0.013      
6 N -0.039      
7 N -0.039      
8 H 0.271      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.412 5.483 0.000 5.662
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.099 -4.802 0.000
y -4.802 -34.515 0.000
z 0.000 0.000 -52.937
Traceless
 xyz
x 5.627 -4.802 0.000
y -4.802 11.003 0.000
z 0.000 0.000 -16.631
Polar
3z2-r2-33.261
x2-y2-3.584
xy-4.802
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.520 0.052 0.000
y 0.052 12.497 0.000
z 0.000 0.000 9.764


<r2> (average value of r2) Å2
<r2> 208.767
(<r2>)1/2 14.449