Loren C. Brown, Emily Ressegue, Joseph S Merola
Dec 13, 2016
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Influential Citations
17
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Journal
Organometallics
Abstract
The present work describes the design and synthesis of a series of rhodium and iridium dimers [(η5-ring)MCl]2(μ2-Cl)2 (where (η5-ring)MCl = (η5-Me4C5R)Rh(III)Cl or (η5-Me4C5R)Ir(III)Cl) using a new and efficient 1 h procedure. Rhodium and iridium dimeric complexes were synthesized via a microwave reaction. The modified HMe4C5R (R = isopropyl, n-butyl, isobutyl, sec-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, phenyl, benzyl, phenethyl, cyclohexyl, and cyclopentyl) type ligands were synthesized by reaction of 2,3,4,5-tetramethylcyclopent-2-en-1-one with the respective Grignard reagent (RMgX), followed by elimination of water under acidic conditions to produce the tetramethyl(alkyl or aryl)cyclopentadienes in moderate to excellent yields (40–98%). Reaction of the HMe4C5R ligands with [M(COD)](μ2-Cl)2 (M = Rh, Ir; COD = 1,5-cyclooctadiene) gave the dimeric complexes [(η5-Me4C5R)MCl]2(μ2-Cl)2 in yields ranging from 47% to 96%. The derivatized dimers were tested for antimicrobial activity, showing activity aga...