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Original Articles

Synthesis of Ag+-Selective Dipalladium(II) Metallohost Based on O-Alkyloxime Bis(N2SO) Ligands

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Pages 1000-1007 | Received 25 Nov 2008, Accepted 27 Dec 2008, Published online: 27 May 2010
 

Abstract

Novel bis(N2SO) ligands 2a (= H4L2a) and 2b (= H4L2b) comprising O-alkyloxime, thiophenol, and phenol moieties were synthesized. The complexation of H4L2a and H4LCitation 2b with palladium(II) acetate afforded the dinuclear metallohosts [LCitation 2a Pd2] and [LCitation 2b Pd2], which have a recognition site consisting of two sulfur and four oxygen donor atoms. The metallohost [L2bPd2] strongly binds Ag+ to give [(L2bPd2)2Ag]+, whereas no detectable interaction between [L2bPd2] and hard metal cations (Na+, Ca2+, Y3+, La3+, and Lu3+) was observed.

Acknowledgments

Dedicated to Professor Naomichi Furukawa on the occasion of his 70th birthday. This work was supported by Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology, Japan.

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