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A Diiminoplatinum( II ) Complex of 4‐Ethynylbenzo‐15‐crown‐5 as a Luminescent Sensor for Divalent Metal Ions
Author(s) -
Siu Phyllis K. M.,
Lai SiuWai,
Lu Wei,
Zhu Nianyong,
Che ChiMing
Publication year - 2003
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300214
Subject(s) - chemistry , divalent , alkali metal , luminescence , metal , salt (chemistry) , ion , photoluminescence , metal ions in aqueous solution , inorganic chemistry , alkaline earth metal , divalent metal , organic chemistry , physics , optoelectronics , optics
The binding of a diiminoplatinum( II ) complex of 4‐ethynylbenzo‐15‐crown‐5 to divalent metal ions such as Mg 2+ or Zn 2+ is accompanied by substantial enhancement of emission intensity (1035‐ and 870‐fold increase, respectively, with 40 equivalents of metal salt) at λ max ≈ 555 nm; H + , Cd 2+ and alkali‐metal ions cause minor enhancement of the photoluminescence (⩽ 10‐fold) under similar conditions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)