Multidentate ligands for the synthesis of multi-metallic complexes |
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| Authors: | Abdullahi Mustapha Krystoff Busch Marta Patykiewicz Alistair Apedaile John Reglinski Alan R Kennedy Timothy J Prior |
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| Institution: | 1. Department of Pure & Applied Chemistry, Strathclyde University, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom;2. CCLRC Daresbury Laboratory, Daresbury, Warrington, Cheshire WA4 4AD, United Kingdom |
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| Abstract: | The reaction of the Schiff base species tris-((2-hydroxybenzylidene)aminoethyl)-amine (TrenSal) and tris-((2-hydroxy-5-bromobenzylidene)aminoethyl)amine (Tren5BrSal) with the acetates of nickel and zinc are reported. Two trimetallic complexes (M3L2) of Tren5BrSal with nickel and zinc have been crystallographically characterised. The attempted crystallisation of bis-(tris-((2-hydroxybenzylidene)aminoethyl)amine nickel) nickel from solutions containing TMEDA lead to the production of two novel complexes: namely a nickel adduct of the partially hydrolysed TrenSal ligand and an interesting nickel bromide–carbonate salt. (TrenSal)2Ni3] is reacted with PbCl2 to form a novel tetrametallic complex, {(TrenSal)Ni}Pb(NC5H5)Cl]2, where a Pb2Cl2 moiety replaces the nickel at the core of the complex. Extending the study to include the related hexadentate ligand, 1,1,1-tris-((2-hydroxybenzylidene)-aminomethyl)propane (TEtSal), we were able to isolate and characterise both (TEtSal)2Ni3] and {(TEtSal)Ni}2Pb]. |
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| Keywords: | Tren tris-(2-aminoethyl)amine TrenSal tris-((2-hydroxybenzylidene)aminoethyl)amine Tren5BrSal tris-((2-hydroxy-5-bromobenzylidene)aminoethyl)amine TMEDA Tetramethylethylenediamine TMeSal tris-((2-hydroxybenzylidene)-aminomethyl)ethane TEtSal tris-((2-hydroxybenzylidene)-aminomethyl)propane PsSal tris-(methyl(2-hydroxybenzylidene)-hydrazono)phosphine sulfide |
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