return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2/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 MP2/TZVP
 hartrees
Energy at 0K-316.432788
Energy at 298.15K 
HF Energy-315.410973
Nuclear repulsion energy211.684045
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/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 3385 142.52 422.52 0.30 0.46
2 A' 2211 2095 43.31 250.62 0.09 0.17
3 A' 2152 2039 466.11 13.85 0.30 0.47
4 A' 1341 1271 4.96 62.13 0.22 0.35
5 A' 773 733 571.42 22.35 0.54 0.70
6 A' 654 620 2.43 15.07 0.09 0.16
7 A' 580 550 0.36 0.13 0.50 0.67
8 A' 464 440 3.41 6.55 0.62 0.76
9 A' 418 397 29.28 2.23 0.21 0.34
10 A' 138 131 8.51 2.08 0.74 0.85
11 A' 132 125 4.55 7.31 0.73 0.84
12 A" 2214 2099 2.97 165.37 0.75 0.86
13 A" 1225 1161 0.68 12.42 0.75 0.86
14 A" 743 705 93.92 1.11 0.75 0.86
15 A" 625 592 2.15 0.39 0.75 0.86
16 A" 381 361 2.58 0.85 0.75 0.86
17 A" 374 354 3.94 4.59 0.75 0.86
18 A" 131 124 0.00 10.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9062.9 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 8590.7 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/TZVP
ABC
0.09357 0.09345 0.04692

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.054 0.000
C2 -0.014 1.282 0.000
N3 0.162 2.477 0.000
C4 -0.014 -0.759 1.238
C5 -0.014 -0.759 -1.238
N6 -0.014 -1.339 2.258
N7 -0.014 -1.339 -2.258
H8 -0.603 3.147 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33612.53721.42471.42472.59802.59803.2541
C21.33611.20792.38762.38763.45983.45981.9551
N32.53721.20793.46973.46974.43794.43791.0164
C41.42472.38763.46972.47551.17333.54334.1395
C51.42472.38763.46972.47553.54331.17334.1395
N62.59803.45984.43791.17333.54334.51555.0564
N72.59803.45984.43793.54331.17334.51555.0564
H83.25411.95511.01644.13954.13955.05645.0564

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 171.620 C1 C4 N6 179.934
C1 C5 N7 179.934 C2 C1 C4 119.684
C2 C1 C5 119.684 C2 N3 H8 122.805
C4 C1 C5 120.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability