TY - JOUR
T1 - Nanocrystallization effect on luminescence properties of polymer–metal complex with different kinds of ligands
AU - Suzuki, Ryuju
AU - Onodera, Tsunenobu
AU - Deguchi, Shigeru
AU - Kasai, Hitoshi
AU - Oikawa, Hidetoshi
N1 - Funding Information:
The authors thank Dr. Y. Koseki of IMRAM, Tohoku University for synthesis of Py3 and useful discussion, and also Prof. H. Tobita and Dr. T. Komuro of Graduate School of Science, Tohoku University for X-ray single crystal structure analysis of PMC2. This work is supported by Grant-in-Aid for JSPS research fellow number 16J00804 .
Publisher Copyright:
© 2018 Taiwan Institute of Chemical Engineers
PY - 2018/11
Y1 - 2018/11
N2 - 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.
AB - 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.
KW - Conformation change
KW - Luminescence
KW - Nanocrystallization
KW - Polymer–metal complex
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U2 - 10.1016/j.jtice.2018.02.022
DO - 10.1016/j.jtice.2018.02.022
M3 - Article
AN - SCOPUS:85043259840
SN - 1876-1070
VL - 92
SP - 129
EP - 133
JO - Journal of the Taiwan Institute of Chemical Engineers
JF - Journal of the Taiwan Institute of Chemical Engineers
ER -