An Unusual Mixed-Valence Cu(I)−Cu(II) 3-D Framework

Abstract

The reaction of Cu(CH<sub>3</sub>CN)<sub>4</sub>ClO<sub>4</sub> with 2-pyridylacrylic acid (2-HPYA)\naffords an unusual mixed-valence Cu(I)−Cu(II) 3-D framework\n{[Cu(II)(2-PYA)<sub>2</sub>]<sub>3</sub>·[Cu(I)(2-PYA)]<sub>2</sub>·(H<sub>2</sub>O)<sub>2</sub>}<i><sub>n</sub></i> (<b>1</b>) with a novel topology\nwhich features Cu(II) dimeric units (or paddle-wheel unit). The\nalmost perpendicular coordinating direction between the N atom\nof pyridyl and the O atom of carboxylate groups may be responsible\nfor the formation of such a novel network.

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