Self-assembly of a High-Nuclearity Chloride-Centered Copper(II) Cluster. Structure and Magnetic Properties of [Au(PPh3)2][trans-Cu6(p://pubs.acs.or

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• 作者：Ahmed A. Mohamed ; Alfredo Burini ; Rossana Galassi ; Daniele Paglialunga ; Jos&eacute ; -Ramó ; n Galá ; n-Mascaró ; s ; Kim R. Dunbar ; John P. Fackler ; Jr.
• 刊名：Inorganic Chemistry
• 出版年：2007
• 出版时间：April 2, 2007
• 年：2007
• 卷：46
• 期：7
• 页码：2348 - 2349
• 全文大小：76K
• 年卷期：v.46,no.7(April 2, 2007)
• ISSN：1520-510X

文摘

A chloride-centered hexanuclear copper(II) pyrazolate [Au(PPh₃)₂][trans-Cu₆(-OH)₆{-(3,5-CF₃)₂pz}₆Cl] is isolated from the reactionof the trinuclear copper(I) pyrazolate [Cu₃{-(CF₃)₂pz}₃] withPPh₃AuCl and Ph₃P in moist air. The six copper atoms are bridgedby pyrazolate and hydroxyl ligands, above and below the copperplane. The chloride anion exists at the center of the planar cavityformed by the copper atoms with Cu-Cl distances of 3.02-3.13Å. The magnetic susceptibility measurements show a strongantiferromagnetic coupling between the copper centers with anestimated exchange constant of J p.gif"> 650 cm^-1.