First Observation of Alkali Metal Ion Induced  Trans – Cis  Isomerization of Palladium( II ) Phosphane Complexes Containing Crown Ether Moieties | Zendy

Yam Vivian WingWah | Zendy; Lu XiaoXia | Zendy; Ko ChiChiu | Zendy

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First Observation of Alkali Metal Ion Induced Trans – Cis Isomerization of Palladium( II ) Phosphane Complexes Containing Crown Ether Moieties

Author(s) -

Yam Vivian WingWah,

Lu XiaoXia,

Ko ChiChiu

Publication year - 2003

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200351178

Subject(s) - isomerization , chemistry , allosteric regulation , crown ether , molecule , intramolecular force , adduct , palladium , metal ions in aqueous solution , photochemistry , stereochemistry , ion , catalysis , organic chemistry , enzyme

Ion switches : The addition of small metal ions (such as Li + and Na + ) to trans ‐palladium( II ) complexes of PPh 2 ‐substituted benzo[15]crown‐5 and benzo[18]crown‐6 results in the formation of 1:1 trans adducts. However, the addition of large alkali ions (such as K + , Rb + , and Cs + ) enforces the complexes to undergo a trans – cis isomerization to enable formation of intramolecular sandwich adducts (see schematic representation).

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