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Two-way vapochromism of a luminescent platinum(II) complex with phosphonic-acidfunctionalized bipyridine ligand

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/72492

Title: Two-way vapochromism of a luminescent platinum(II) complex with phosphonic-acidfunctionalized bipyridine ligand
Authors: Kobayashi, Atsushi Browse this author →KAKEN DB
Yamamoto, Naotaka Browse this author
Shigeta, Yasuhiro Browse this author
Yoshida, Masaki Browse this author →KAKEN DB
Kato, Masako Browse this author →KAKEN DB
Issue Date: 7-Feb-2018
Publisher: Royal Society of Chemistry
Journal Title: Dalton transactions
Volume: 47
Issue: 5
Start Page: 1548
End Page: 1556
Publisher DOI: 10.1039/c7dt04324d
PMID: 29322157
Abstract: A luminescent Pt(II) complex [Pt(CN)(2)(H(4)dpbpy)] (1P; H(4)dpbpy = 2,2'-bipyridine-4,4'-diphosphonic acid) bearing a phosphonic-acid-functionalized bipyridine ligand was successfully synthesized and its unique two-way vapochromic behaviour investigated. X-ray structure analyses of both the anhydrous 1P and penta-hydrated 1P.5H(2)O phases clearly reveal the activation of intermolecular Pt. Pt interactions through the adsorption of water vapour. Emission spectroscopy reveals that the penta-hydrated 1P.5H(2)O complex exhibits an orange emission at 585 nm that shifts in two directions, to a blue-green emission at 469 nm by drying at 100 degrees C or to a red emission at 701 nm by drying under vacuum at room temperature. Thermogravimetric analyses and powder X-ray diffraction studies clearly reveal that anhydrous 1P, with negligible intermolecular Pt. Pt interactions, is formed by drying at 100 degrees C whereas the monohydrate 1P.H2O phase, with effective Pt. Pt interactions, is formed by drying under vacuum.
Type: article (author version)
URI: http://hdl.handle.net/2115/72492
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小林 厚志

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