Systems containing Nitrogen and Other Heteroatoms

Systems containing Nitrogen and Other Heteroatoms. Both kinetic and thermodynamic data show that, of the series of nickel(ii) complexes of related O2N2-donor macrocycles in the fourteen- to seventeen-membered range, the sixteen-membered compound (41) is the most stable.The macrocycle (42) shows strong ligand binding with 

Vacuum pyrolysis of (43) effected extrusion of SO2 and loss of chlorine, with the formation of (44).  

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