Synthesis and structural characterization of carborane-containing neutral, self-assembled Pt-metallacycles |
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Authors: | Das Neeladri Stang Peter J Arif Atta M Campana Charles F |
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Institution: | Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA. |
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Abstract: | structure: see text] We have combined carborane chemistry with the newly developed directional bonding strategy to synthesize neutral macrocycles. The m- and p-carborane dicarboxylates were utilized as the donor linkers in conjunction with 1,8-bistrans-Pt(PEt3)2NO3]anthracene 3, 2,9-bistrans-Pt(PEt3)2NO3]phenanthrene 5, and cis-Pt(PEt3)2(NO3)2 unit 6. Three new platinum-based macrocycles, 4, 7, and 8, were thus synthesized. 31P{1H} NMR as well as the X-ray characterization of Pt-metallacycles reveal the formation of single highly symmetrical neutral species. |
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