So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Cornman, Charles R.; Zovinka, Edward P.; Boyajian, Yvette D.; Olmstead, Marilyn M.; Noll, Bruce C. researched the compound: N,N’-(trans-Cyclohexane-1,2-diyl)dipicolinamide( cas:218290-24-5 ).Electric Literature of C18H20N4O2.They published the article 《Synthesis, structure and EPR spectroscopy of a vanadium(IV)-amide metallacyclic complex》 about this compound( cas:218290-24-5 ) in Inorganica Chimica Acta. Keywords: crystal structure vanadium pyridinecarboxamidobenzene pyridinecarboxamidocyclohexane oxo chloro metallacycle complex; vanadium pyridinecarboxamidobenzene pyridinecarboxamidocyclohexane oxo chloro metallacycle preparation structure ESR. We’ll tell you more about this compound (cas:218290-24-5).
The synthesis, crystal structures and EPR spectra for two dinuclear, metallacyclic VIV complexes, [(H2bpb)VIVOCl]2Cl2·2CH2Cl2 (1, H2bpb = 1,2-bis(2-pyridinecarboxamido)benzene) and [(H2bpc)VIVOCl]2Cl2·4.5CH2Cl2 (2, H2bpc = trans-1,2-bis(2-pyridinecarboxamido)cyclohexane) are reported. The coordinating ligands include a rare example of vanadium(IV) coordinated to the carbonyl oxygen of an amide moiety. In the solid state, the cavity of these complexes encircles two mols. of methylene chloride which interact only weakly with the metallacycle. EPR spectra are typical of the mononuclear VIV ion, indicating that the spins are not interacting. Crystal data for 1: triclinic, space group P1̅, a 10.543(2), b 11.999(3), c 13.654(2) Å, α 64.170(14), β 70.084(12), γ 87.19(2)°, U = 1451.6(5) Å3, Z = 2, dc = 1.627 g cm-3, T = 123(2) K, number of unique reflections = 3797, number of parameters = 355, R1 = 0.0882, wR2 = 0.1892 (all data). Crystal data for 2: triclinic, space group P1̅, a 11.933(5), b 12.020(3), c 12.047(4) Å, α 63.24(2), β 65.46(3), γ 80.06(3)°, U = 1403.4(9) Å3, Z = 2, dc = 1.54 g cm-3, T = 130 K, number of unique reflections = 3663, number of parameters = 224, R1 = 0.1271, Rw = 0.1384 (F > 4.0σ(F)).
Different reactions of this compound(N,N’-(trans-Cyclohexane-1,2-diyl)dipicolinamide)Electric Literature of C18H20N4O2 require different conditions, so the reaction conditions are very important.
Reference:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics