Synthesis and structural characterisation of luminescent di- and tri-nuclear palladium(II) acetylide complexes as building blocks for metallodendrimersâ Electronic supplementary information (ESI) available: experimental crystallographic details. See http://www.rsc.org/suppdata/dt/b0/b009894i/
Wing-WahYam, Vivian; Zhang, Lingjun; Tao, Chi-Hang; Man-ChungWong, Keith; Cheung, Kung-Kai; Wing-WahYam Vivian; Department of Chemistry, The University of Hong Kong; Zhang Lingjun; Department of Chemistry, The University of Hong Kong; Tao Chi-Hang; Department of Chemistry, The University of Hong Kong; Man-ChungWong Keith; Department of Chemistry, The University of Hong Kong; Cheung Kung-Kai; Department of Chemistry, The University of Hong Kong
Журнал:
Dalton Transactions
Дата:
2001
Аннотация:
The reaction of the starting complex trans-Pd(PEt3)2Cl2 with branched alkynyl ligands, 1,3,5-triethynylbenzene (L1) and 1,3-diethynyl-5-triisopropylsilylethynylbenzene (L2), in the presence of HNEt2 and copper(I) catalyst led to formation of the respective luminescent branched acetylide complexes, 1,3,5-[Cl(Et3P)2PdC.tbd;C]3C6H3 1 and 1,3-[Cl(Et3P)2PdC.tbd;C]2-5-[(<sup>i</sup>Pr)3SiC.tbd;C]C6H3 2, which can serve as building blocks for the construction of metallodendrimers either by a divergent or a convergent approach. Photophysical studies of these complexes showed the di- and tri-nuclear palladium complexes 1 and 2 are emissive in EtOHâ MeOH (4â â ¶â 1, v/v) glass at low temperature. Synthesis of the first generation metallodendrimers using 1 as a building block has also been attempted and shows promising results.
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