Nanocrystallization effect on luminescence properties of polymer–metal complex with different kinds of ligands

Ryuju Suzuki, Tsunenobu Onodera, Shigeru Deguchi, Hitoshi Kasai, Hidetoshi Oikawa

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We have successfully fabricated a series of polymer–metal complex [{Cu2(µ-Br)2(PPh3)2}(µ-PyX)]n nanocrystals (NCs) with different kinds of ligands. Interestingly, the luminescence spectrum of the NCs of [{Cu2(µ-Br)2(PPh3)2}(µ-PyX)]n were red-shifted, compared with those of their corresponding bulk crystals. IR spectra of [{Cu2(µ-Br)2(PPh3)2}(µ-Py2)]n, whose ligand had a phenyl linker between two pyridine rings, revealed that the conformation of the coordinated Py2 ligand in the NCs was different from that in the bulk crystal, but similar to that of the un-coordinated Py2 ligand. The results suggest that the rotational degree of freedom in the PyX ligands would affect the looseness of the crystal lattice in the polymer–metal complex NCs, thereby affecting their luminescence properties.

Original languageEnglish
Pages (from-to)129-133
Number of pages5
JournalJournal of the Taiwan Institute of Chemical Engineers
Volume92
DOIs
Publication statusPublished - 2018 Nov

Keywords

  • Conformation change
  • Luminescence
  • Nanocrystallization
  • Polymer–metal complex

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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