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Synthesis, Reactions and Catalytic Activities of Iridium Complexes intercalated into Montmorillonite

DOI: 10.1039/DT9930000581

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 581 - 586 (1993)

Update date:2022-08-22

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Authors:

Chin, Chong ShikChin, Chong Shik

Lee, ByeongnoLee, Byeongno

Yoo, IlyeYoo, Ilye

Kwon, Tae-hyunKwon, Tae-hyun

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Article abstract of DOI:10.1039/DT9930000581

Reactions of cationic iridium(I) complexes, ClO4 1 and ClO4 2 (cod = cycloocta-1,5-diene) with water-swelled sodium montmorillonite have been shown to produce iridium complex-intercalated clays, +-montmorillonite 1c and +-montmorillonite 2c.Compounds 1c and 2c react with CO to produce + (from 1c) and + intercalated clays.Reactions of 1c and 2c with H2 produce cyclooctane and unknown iridium complexes remaining in the layers of the clay.While both the catalytic hydrogenation and isomerization (double-bond migration and cis-trans-conversion) of olefins with 1 and 2 are in general retarded by intercalation of the catalysts, isomerization is relatively more suppressed than hydrogenation.Selective hydrogenation of the vinyl group of 4-vinylcyclohexene was found to be somewhat higher with 1c than with 1.

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