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

using model chemistry: MP2/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/aug-cc-pVTZ
 hartrees
Energy at 0K-316.613598
Energy at 298.15K 
HF Energy-315.425479
Nuclear repulsion energy211.640301
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 MP2/aug-cc-pVTZ
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' 3556 3389 169.62 385.70 0.28 0.43
2 A' 2191 2088 47.11 293.43 0.08 0.15
3 A' 2137 2036 486.74 6.20 0.45 0.62
4 A' 1330 1267 3.64 57.11 0.20 0.34
5 A' 808 770 526.48 23.99 0.31 0.48
6 A' 651 621 1.23 19.99 0.06 0.11
7 A' 573 546 0.37 0.65 0.73 0.85
8 A' 570 543 13.01 4.63 0.49 0.66
9 A' 437 417 33.83 2.47 0.27 0.42
10 A' 168 160 6.47 0.45 0.71 0.83
11 A' 129 123 9.05 6.68 0.72 0.84
12 A" 2196 2093 5.37 178.17 0.75 0.86
13 A" 1223 1165 0.50 11.30 0.75 0.86
14 A" 737 702 78.51 0.78 0.75 0.86
15 A" 620 591 2.97 0.19 0.75 0.86
16 A" 389 371 5.71 2.06 0.75 0.86
17 A" 375 358 0.21 0.15 0.75 0.86
18 A" 127 121 0.01 8.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9108.7 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 8679.7 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 MP2/aug-cc-pVTZ
ABC
0.09375 0.09316 0.04689

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 -0.059 0.000
C2 -0.011 1.279 0.000
N3 0.147 2.476 0.000
C4 -0.011 -0.759 1.240
C5 -0.011 -0.759 -1.240
N6 -0.011 -1.335 2.263
N7 -0.011 -1.335 -2.263
H8 -0.623 3.139 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33822.54011.42421.42422.59792.59793.2557
C21.33821.20732.38622.38623.45753.45751.9576
N32.54011.20733.46883.46884.43514.43511.0159
C41.42422.38623.46882.48011.17363.54994.1362
C51.42422.38623.46882.48013.54991.17364.1362
N62.59793.45754.43511.17363.54994.52595.0506
N72.59793.45754.43513.54991.17364.52595.0506
H83.25571.95761.01594.13624.13625.05065.0506

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.477 C1 C4 N6 179.895
C1 C5 N7 179.895 C2 C1 C4 119.464
C2 C1 C5 119.464 C2 N3 H8 123.179
C4 C1 C5 121.072
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability