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Synthesis and diastereoselective ligand substitution reaction of a mono(sulfido)-bridged Ir–Mo heterodinuclear complex by Kazuya Arashiba; Shoji Matsukawa; Yoshiaki Tanabe; Shigeki Kuwata; Youichi Ishii is a Materials Science article available to read on EtoBox.

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The reaction of the mono(hydrosulfido) iridium complex [Cp \* IrH(SH)(PPh 3 )] (1, Cp \* = g 5 -C 5 Me 5 ) with [Cp \* MCl 2 (NO)] (2, M = Mo, W) afforded the mono(sulfido)-bridged Ir-Mo and Ir-W heterodinuclear complexes [Cp \* IrH(PPh 3 )(l-S)MCl(NO)Cp \* ] (3a and 3a 0 , M = Mo; 3b and 3b 0 , M = W) as a 2:1 mixture of diastereomers. Abstraction of the hydrido ligand in both 3a and 3a 0 with [Ph 3 C][BF 4 ] in CH 2 Cl 2 -MeCN underwent stereoselectively to give the R Ir ,R Mo /S Ir ,S Mo pair of the cationic acetonitrile complex [Cp \* Ir(NC-Me)(PPh 3 )(l-S)MoCl(NO)Cp \* ][BF 4 ] (4). The stereochemical course for the formation of 4 from the major isomer 3a was confirmed to be inversion at the iridium center by X-ray crystallographic studies. Ligand substitution experiment of 4 with CD 3 CN revealed that the stereochemistry of 4 is controlled thermodynamically.

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Author

Kazuya Arashiba; Shoji Matsukawa; Yoshiaki Tanabe; Shigeki Kuwata; Youichi Ishii

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1387-7003)

Published

2008

Language

EN

Field

Materials Science (Physical Sciences)