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

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-315.432152
Energy at 298.15K 
HF Energy-315.432152
Nuclear repulsion energy215.018185
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 HF/6-311+G(3df,2p)
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' 3770 3425 256.00 232.14 0.29 0.45
2 A' 2587 2350 27.85 246.86 0.08 0.14
3 A' 2269 2061 969.94 9.37 0.73 0.85
4 A' 1436 1305 0.20 44.08 0.18 0.31
5 A' 870 791 472.94 7.04 0.63 0.77
6 A' 691 628 0.95 13.90 0.06 0.11
7 A' 678 616 49.87 7.60 0.40 0.58
8 A' 649 590 0.28 0.28 0.05 0.09
9 A' 505 458 67.35 1.53 0.32 0.49
10 A' 190 172 9.97 0.30 0.71 0.83
11 A' 153 139 12.07 6.86 0.72 0.84
12 A" 2580 2344 57.80 142.58 0.75 0.86
13 A" 1307 1188 4.25 8.38 0.75 0.86
14 A" 808 734 90.55 0.09 0.75 0.86
15 A" 696 632 6.27 1.80 0.75 0.86
16 A" 474 431 8.64 3.79 0.75 0.86
17 A" 443 402 1.13 0.19 0.75 0.86
18 A" 152 138 0.20 7.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10128.3 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 9202.6 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 HF/6-311+G(3df,2p)
ABC
0.09651 0.09532 0.04812

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -0.055 0.000
C2 0.001 1.269 0.000
N3 0.094 2.443 0.000
C4 0.001 -0.760 1.244
C5 0.001 -0.760 -1.244
N6 0.001 -1.309 2.228
N7 0.001 -1.309 -2.228
H8 -0.699 3.055 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.32422.49941.43021.43022.55702.55703.1873
C21.32421.17722.38032.38033.40773.40771.9176
N32.49941.17723.43723.43724.36454.36451.0014
C41.43022.38033.43722.48881.12683.51604.0729
C51.43022.38033.43722.48883.51601.12684.0729
N62.55703.40774.36451.12683.51604.45694.9493
N72.55703.40774.36453.51601.12684.45694.9493
H83.18731.91761.00144.07294.07294.94934.9493

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.480 C1 C4 N6 179.623
C1 C5 N7 179.623 C2 C1 C4 119.531
C2 C1 C5 119.531 C2 N3 H8 123.140
C4 C1 C5 120.938
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.758      
2 C 0.926      
3 N -1.156      
4 C 0.825      
5 C 0.825      
6 N -1.210      
7 N -1.210      
8 H 0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.426 5.496 0.000 5.678
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.256 -4.845 0.000
y -4.845 -36.027 0.000
z 0.000 0.000 -54.459
Traceless
 xyz
x 6.988 -4.845 0.000
y -4.845 10.331 0.000
z 0.000 0.000 -17.318
Polar
3z2-r2-34.636
x2-y2-2.229
xy-4.845
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.418 -0.040 0.000
y -0.040 12.164 0.000
z 0.000 0.000 9.525


<r2> (average value of r2) Å2
<r2> 207.157
(<r2>)1/2 14.393