Synthesis of a Self-Assembled Hg(II)-Dithiocarbamate Metallomacrocycle

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• 作者：Edmundo Guzm谩n-Perc谩stegui ; Lev N. Zakharov ; Jos茅 G. Alvarado-Rodr铆guez ; Matthew E. Carnes ; Darren W. Johnson
• 刊名：Crystal Growth & Design
• 出版年：2014
• 出版时间：May 7, 2014
• 年：2014
• 卷：14
• 期：5
• 页码：2087-2091
• 全文大小：349K
• 年卷期：v.14,no.5(May 7, 2014)
• ISSN：1528-7505

文摘

This report illustrates a successful mercury-directed self-assembly strategy via the design and synthesis of a new bifunctional bis-dithiocarbamate ligand K₂L. This ligand efficiently self-assembles with Hg(II) to afford a novel bimetallic 28-membered macrocycle, Hg₂L₂. This supramolecular complex persists as a discrete macrocyclic structure in solution as evidenced by two-dimensional DOSY NMR. The X-ray diffraction analysis confirms the formation of the bimetallic metallomacrocycle where both bis-dithiocarbamate units are asymmetrically bound to the mercury centers. Analysis of noncovalent interactions in the crystalline state reveals very close Hg路路路Hg intramolecular mercurophilic contacts (鈮?3.3 脜) and the action of C鈥揌路路路蟺 (chelate) interactions.