A Planar Oxocuprate (II) Array Vis Heterometallic Alkoxide Chemistry

Abstract

Controlled hydrolysis of K4Zr2O(O Pr)10 in the presence of CuCl2 in THF yields Cu4Zr4O3(O Pr)18, which was characterized by H(1) and C13 NMR and infrared spectroscopy, magnetic susceptibility and X-ray diffraction. Cell constants (-92 deg C): a = 12.673(8)A, b = 17.482(13), c = 10.877(8), alpha = 104.85(3), Beta = 113.52(3), Gamma = 75.65(3) with Z = 1 in space group P1. The compound has a central planar Cu4O3(O Pr)2 unit terminated on two ends by Zr2(O Pr)8 units. The central of the three oxide ions has an unusual planar four- coordinate geometry. The central Cu4(8+) unit shows antiferromagnetic coupling, with Mu sub eff = 1 BM/Cu over the range 100-300K. The molecule retains its structure in toluene solution, as judged by H(1) and C13 NMR. (TTL)

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Document Details

Document Type
Technical Report
Publication Date
Nov 14, 1990
Accession Number
ADA229483

Entities

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  • Brian A. Vaartstra
  • John A. Samuels
  • John C. Huffman
  • Kathleen L. Trojan
  • William E. Hatfield

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  • University of North Carolina at Chapel Hill

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