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On the role played by the chirality of ligands on the aggregation of heterometallic Cu II -Hg II complexes.
- Source :
-
Chirality [Chirality] 2019 Sep; Vol. 31 (9), pp. 621-627. Date of Electronic Publication: 2019 Jul 24. - Publication Year :
- 2019
-
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 Cu <superscript>II</superscript> -Hg <superscript>II</superscript> complexes (coordination polymers or oligonucler species), resulted from the reactions of the copper(II) complexes with HgCl <subscript>2</subscript> or HgI <subscript>2</subscript> , is different. The enantiopure metalloligands lead to chiral coordination polymers, <superscript>1</superscript> <subscript>∞</subscript> [{Cu(R-/S-valmet)(H <subscript>2</subscript> O)} <subscript>2</subscript> HgCl <subscript>2</subscript> ]·5H <subscript>2</subscript> O·CH <subscript>3</subscript> OH and <superscript>2</superscript> <subscript>∞</subscript> [{Cu <subscript>2</subscript> (R-/S-valmet) <subscript>2</subscript> (μ-H <subscript>2</subscript> O)(H <subscript>2</subscript> O) <subscript>2</subscript> }HgI <subscript>2</subscript> ]·4H <subscript>2</subscript> O. The reaction of the racemic mixture of the metalloligands with HgX <subscript>2</subscript> affords discrete complexes: [{Cu(R,S-valmet)(H <subscript>2</subscript> O) <subscript>2</subscript> } <subscript>2</subscript> HgCl <subscript>2</subscript> ]·2H <subscript>2</subscript> O and [{Cu(R,S-valmet)(H <subscript>2</subscript> O)(CH <subscript>3</subscript> OH)} <subscript>2</subscript> Hg <subscript>2</subscript> I <subscript>4</subscript> ].<br /> (© 2019 Wiley Periodicals, Inc.)
Details
- Language :
- English
- ISSN :
- 1520-636X
- Volume :
- 31
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Chirality
- Publication Type :
- Academic Journal
- Accession number :
- 31339186
- Full Text :
- https://doi.org/10.1002/chir.23114