Synthesis and structure of dilead (II) and dimanganese (II) complexes of macrocycles derived from 3, 6-diformylpyridazine
S Brooker, RJ Kelly
Index: Brooker, Sally; Kelly, Robert J. Journal of the Chemical Society - Dalton Transactions, 1996 , # 10 p. 2117 - 2122
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Citation Number: 35
Abstract
An improved synthesis of 3, 6-diformylpyridazine I has been elaborated. The macrocyclic complexes Pb2L1 (ClO4) 41 and [Pb2L2][ClO4] 42 were prepared from this precursor, 1, 3- diaminopropane and lead (II) perchlorate in 1: 1: 1 and 2: 2: 1 ratios respectively. The ability of lead (II) perchlorate to template the formation of the two macrocycle ring sizes, L1=(2+ 2) and L2=(4+ 4), simply by alteration of the reagent ratio is unprecedented. Transmetallation ...
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