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

using model chemistry: MP2/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-51.948276
Energy at 298.15K 
HF Energy-51.285739
Nuclear repulsion energy97.507449
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/CEP-31G
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' 3555 3436 110.19 512.27 0.31 0.48
2 A' 2087 2016 312.45 300.59 0.14 0.25
3 A' 2016 1948 109.41 72.73 0.07 0.12
4 A' 1277 1234 5.91 68.85 0.28 0.44
5 A' 766 740 840.84 37.37 0.58 0.73
6 A' 619 598 1.07 16.33 0.07 0.14
7 A' 568 549 2.91 18.66 0.69 0.82
8 A' 564 545 0.03 0.49 0.14 0.24
9 A' 399 385 9.69 1.59 0.12 0.21
10 A' 168 163 2.93 1.09 0.75 0.85
11 A' 129 125 6.16 8.88 0.73 0.84
12 A" 2057 1988 0.05 198.45 0.75 0.86
13 A" 1167 1128 1.88 7.36 0.75 0.86
14 A" 766 740 125.44 1.78 0.75 0.86
15 A" 601 581 2.12 0.07 0.75 0.86
16 A" 366 353 3.79 1.75 0.75 0.86
17 A" 357 345 2.32 3.79 0.75 0.86
18 A" 128 123 0.08 11.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8795.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 8498.6 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 MP2/CEP-31G
ABC
0.08733 0.08594 0.04345

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.025 -0.049 0.000
C2 -0.025 1.339 0.000
N3 0.202 2.571 0.000
C4 -0.025 -0.787 1.276
C5 -0.025 -0.787 -1.276
N6 -0.025 -1.403 2.340
N7 -0.025 -1.403 -2.340
H8 -0.475 3.348 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.38772.62991.47381.47382.70392.70393.4264
C21.38771.25312.47912.47913.60503.60502.0588
N32.62991.25313.59943.59944.61804.61801.0305
C41.47382.47913.59942.55131.23013.66794.3504
C51.47382.47913.59942.55133.66791.23014.3504
N62.70393.60504.61801.23013.66794.68025.3154
N72.70393.60504.61803.66791.23014.68025.3154
H83.42642.05881.03054.35044.35045.31545.3154

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 169.556 C1 C4 N6 179.975
C1 C5 N7 179.975 C2 C1 C4 120.054
C2 C1 C5 120.054 C2 N3 H8 128.460
C4 C1 C5 119.893
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability