Five-membered metallacycles involving dimeric isocyanate units converted into cyclic tetramers and isocyanurates, depending on the central metal or organic isocyanates, and their synthetic and theoretical studies were carried out.
An asymmetric ligand, (4‐py)–CH=N–C10H6–NH2 (L1), was prepared from 4‐pyridinecarboxaldehyde and 1,5‐diaminonaphthalene. The ligand L1 reacted with Cd(NO3)2·4H2O in methanol to give a discrete molecular complex, [Cd(L1)2(NO3)2(CH3OH)] (1). In addition, a 1D cadmium coordination polymer possessing a methanol molecule, {[Cd(L2)(CH3COO)2]·(CH3OH)}∞ (2), was prepared from a symmetric ligand (L2 = (3‐py)–CH=N–C10H6–N=CH–(3‐py)) and Cd(OAc)2·2H2O.
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