Article,

Synthesis of a Large Organometallic Macrocycle Comprising Four Ga-Ga Bonds and Four Bridging Ferrocene Dicarboxylato Ligands

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Organometallics, 19 (6): 1128--1131 (2000)
DOI: 10.1021/om990875q

Abstract

The reaction of tetrakis[bis(trimethylsilyl)methyl]digallane(4) with 1,1'-ferrocenedicarboxylic acid afforded 84\% orange-red crystals of the title macrocyclic compd. contg. a large 32-atom heterocycle, which comprises four Ga-Ga single bonds bridged by four 1,1'-ferrocenedicarboxylato ligands. The largest diam. of the mol. is $\sim$2.5 nm. The redox-active Ga-Ga sites and ferrocene Fe centers are all oxidized irreversibly within a narrow potential range. The structure of the macrocycle was detd. by x-ray crystallog. [on SciFinder(R)]

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