In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Novel Metal-Linked Face-to-Face Porphyrazine Dimer, published in 2005-11-14, which mentions a compound: 39901-94-5, Name is Picolinoyl chloride hydrochloride, Molecular C6H5Cl2NO, Product Details of 39901-94-5.
We report the synthesis and phys. studies of a novel copper nickel porphyrazine dimer [NiCuL]2 (H4L = I) which has Ni(II) ions incorporated into the porphyrazine cores and is linked by two Cu(II) ions coordinated to bis(picolinamide) chelates attached to the porphyrazine periphery. The crystal structures of the dimer and the precursor metal-free porphyrazine ligand are presented. The dimer consists of parallel, face-to-face porphyrazines with an average separation of 3.30 Å which are linked through the peripheral picolinamide ligands by a pair of peripheral Cu(II) ions. Each Cu(II) is coordinated with distorted square-planar geometry by a picolinamide from each porphyrazine. In this report we focus on the interaction of these two peripheral Cu(II) ions. We discuss the preparation and magnetic properties of the porphyrazine dimer complex with two Cu(II) ions in the peripheral chelate a diamagnetic metal ion Ni(II) in the porphyrazine core. Although the dimer contains two Cu(II) ions (S = 1/2) we could detect no ESR signal which suggests very strong antiferromagnetic exchange between those two Cu(II) ions. Temperature-dependent magnetic susceptibility measurement gives an exchange splitting between the S = 0 ground state and the excited triplet state of Δ = 660 cm-1.
《Novel Metal-Linked Face-to-Face Porphyrazine Dimer》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Picolinoyl chloride hydrochloride)Product Details of 39901-94-5.