On the role played by the chirality of ligands on the aggregation of heterometallic CuII -HgII complexes.

On the role played by the chirality of ligands on the aggregation of heterometallic CuII -HgII complexes. Chirality. 2019 Jul 24;: Authors: Maxim C, Muntean D, Andruh M Abstract Copper(II) complexes constructed from enantiopure Schiff-base ligands derived from o-vanillin and methionine or from their racemic mixture have been employed as metalloligands towards mercury(II) ions. The nature of the heterometallic CuII -HgII complexes (coordination polymers or oligonucler species), resulted from the reactions of the copper(II) complexes with HgCl2 or HgI2 , is different. The enantiopure metalloligands lead to chiral coordination polymers, 1 ∞ [{Cu(R-/S-valmet)(H2 O)}2 HgCl2 ]·5H2 O·CH3 OH and 2 ∞ [{Cu2 (R-/S-valmet)2 (μ-H2 O)(H2 O)2 }HgI2 ]·4H2 O. The reaction of the racemic mixture of the metalloligands with HgX2 affords discrete complexes: [{Cu(R,S-valmet)(H2 O)2 }2 HgCl2 ]·2H2 O and [{Cu(R,S-valmet)(H2 O)(CH3 OH)}2 Hg2 I4 ]. PMID: 31339186 [PubMed - as supplied by publisher]
Source: Chirality - Category: Molecular Biology Authors: Tags: Chirality Source Type: research