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Synthesis, Reactivity and Structures of Iridium Tetrafluoropyridyl Complexes: Ammonia Coordination and Activation
Author(s) -
Jungton AnnKatrin,
Kläring Paul,
Braun Thomas,
Eißler Anna
Publication year - 2012
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201100440
Subject(s) - chemistry , iridium , ammonia , reactivity (psychology) , isotopomers , cationic polymerization , medicinal chemistry , benzene , stereochemistry , metal , molecule , catalysis , polymer chemistry , organic chemistry , medicine , alternative medicine , pathology
Abstract. The complex cis ‐ trans ‐[Ir(4‐C 5 NF 4 )(H) 2 (P i Pr 3 ) 2 ] ( 1 ) reacted with ammonia to give cis ‐ trans ‐[Ir(4‐C 5 NF 4 )(H) 2 (NH 3 )(P i Pr 3 ) 2 ] ( 2a ). The reaction of 1 with ND 3 yielded the isotopomer cis ‐ trans ‐[Ir(4‐C 5 NF 4 )(H) 2 (ND 3 )(P i Pr 3 ) 2 ] ( 2b ). Within two weeks hydrido ligands were replaced by metal bound deuterium atoms via H/D exchange. Treatment of trans ‐[Ir(4‐C 5 NF 4 )(η 2 ‐C 2 H 4 )(P i Pr 3 ) 2 ] ( 3 ) with HCl led to the formation of trans ‐[Ir(4‐C 5 NF 4 )(Cl)(H)(P i Pr 3 ) 2 ] ( 4 ). Complex 4 reacted with CO or ammonia to give trans ‐[Ir(4‐C 5 NF 4 )(Cl)(H)(CO)(P i Pr 3 ) 2 ] ( 5 ) and the ammine complex trans ‐[Ir(4‐C 5 NF 4 )(Cl)(H)(NH 3 )(P i Pr 3 ) 2 ] ( 6a ), respectively. The cationic species [(η 6 ‐C 6 H 6 )Ir(H) 2 (P i Pr 3 )][PF 6 ] ( 7 ) was obtained by reaction of cis ‐ trans ‐[Ir(4‐C 5 NF 4 )(H) 2 (NH 3 )(P i Pr 3 ) 2 ] ( 2a ) or cis ‐ trans ‐[Ir(4‐C 5 NF 4 )(H) 2 (P i Pr 3 ) 2 ] ( 1 ) with [Ph 3 C][PF 6 ] in benzene.