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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-316.290859
Energy at 298.15K 
HF Energy-315.310637
Nuclear repulsion energy210.388332
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 MP2/6-31G*
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' 3558 3355 129.56 431.89 0.31 0.48
2 A' 2213 2087 52.68 205.19 0.12 0.21
3 A' 2160 2037 396.58 10.61 0.40 0.57
4 A' 1349 1272 5.20 55.78 0.25 0.40
5 A' 831 784 596.23 23.03 0.59 0.74
6 A' 657 619 1.14 12.33 0.11 0.20
7 A' 578 545 0.12 0.11 0.54 0.70
8 A' 546 515 9.79 7.37 0.68 0.81
9 A' 421 397 31.74 2.21 0.35 0.52
10 A' 164 155 6.23 0.55 0.74 0.85
11 A' 133 125 7.98 8.24 0.73 0.84
12 A" 2217 2091 1.58 148.48 0.75 0.86
13 A" 1237 1166 0.46 8.81 0.75 0.86
14 A" 752 709 102.52 1.86 0.75 0.86
15 A" 620 585 1.64 0.48 0.75 0.86
16 A" 387 365 7.06 5.43 0.75 0.86
17 A" 378 356 0.00 0.83 0.75 0.86
18 A" 129 122 0.01 10.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9164.4 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 8642.0 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 MP2/6-31G*
ABC
0.09260 0.09223 0.04637

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 -0.057 0.000
C2 -0.013 1.286 0.000
N3 0.157 2.491 0.000
C4 -0.013 -0.763 1.244
C5 -0.013 -0.763 -1.244
N6 -0.013 -1.344 2.275
N7 -0.013 -1.344 -2.275
H8 -0.611 3.164 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34322.55391.43011.43012.61412.61413.2762
C21.34321.21702.39672.39673.47783.47781.9709
N32.55391.21703.48753.48754.46264.46261.0212
C41.43012.39673.48752.48801.18403.56714.1621
C51.43012.39673.48752.48803.56711.18404.1621
N62.61413.47784.46261.18403.56714.55085.0851
N72.61413.47784.46263.56711.18404.55085.0851
H83.27621.97091.02124.16214.16215.08515.0851

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 171.955 C1 C4 N6 179.864
C1 C5 N7 179.864 C2 C1 C4 119.554
C2 C1 C5 119.554 C2 N3 H8 123.190
C4 C1 C5 120.892
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability