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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-52.394201
Energy at 298.15K 
HF Energy-51.457249
Nuclear repulsion energy99.162587
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' 3533 3355 111.58 404.00 0.31 0.48
2 A' 2182 2071 74.27 274.71 0.10 0.19
3 A' 2121 2014 377.50 13.59 0.63 0.78
4 A' 1325 1258 12.00 53.44 0.24 0.38
5 A' 862 818 548.69 38.57 0.51 0.67
6 A' 645 613 0.52 15.26 0.10 0.18
7 A' 556 528 0.50 0.23 0.66 0.80
8 A' 504 478 4.61 10.69 0.65 0.79
9 A' 410 389 25.20 3.16 0.21 0.35
10 A' 145 137 4.41 1.17 0.75 0.86
11 A' 125 119 6.48 8.10 0.73 0.84
12 A" 2187 2076 2.17 174.62 0.75 0.86
13 A" 1223 1161 2.68 10.14 0.75 0.86
14 A" 738 701 98.05 1.83 0.75 0.86
15 A" 601 571 1.65 0.04 0.75 0.86
16 A" 373 355 6.31 3.86 0.75 0.86
17 A" 360 341 0.08 0.64 0.75 0.86
18 A" 123 117 0.00 10.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9005.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 8549.8 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
0.08962 0.08944 0.04494

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 -0.017 -0.057 0.000
C2 -0.017 1.311 0.000
N3 0.182 2.532 0.000
C4 -0.017 -0.775 1.263
C5 -0.017 -0.775 -1.263
N6 -0.017 -1.367 2.310
N7 -0.017 -1.367 -2.310
H8 -0.616 3.182 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.36742.59611.45271.45272.65602.65603.2935
C21.36741.23732.43802.43803.53663.53661.9648
N32.59611.23733.54503.54504.53624.53621.0299
C41.45272.43803.54502.52591.20323.62204.1962
C51.45272.43803.54502.52593.62201.20324.1962
N62.65603.53664.53621.20323.62204.62055.1370
N72.65603.53664.53623.62201.20324.62055.1370
H83.29351.96481.02994.19624.19625.13705.1370

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 170.713 C1 C4 N6 179.878
C1 C5 N7 179.878 C2 C1 C4 119.616
C2 C1 C5 119.616 C2 N3 H8 119.855
C4 C1 C5 120.769
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability