Luminescent coordination polymers for the VIS and NIR range constituting LnCl3 and 1,2-bis(4-pyridyl)ethane

Autor:	Philipp R. Matthes, Nicole Dannenbauer, Klaus Müller-Buschbaum
Rok vydání:	2016
Předmět:	Lanthanide Photoluminescence 010405 organic chemistry Ligand Chemistry 010402 general chemistry Photochemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry Thermogravimetry Crystallography Differential thermal analysis Luminescence Spectroscopy Powder diffraction
Zdroj:	Dalton Transactions. 45:6529-6540
ISSN:	1477-9234 1477-9226
DOI:	10.1039/c6dt00152a
Popis:	A series of 14 lanthanide containing coordination polymers LnCl3 with 1,2-bis(4-pyridyl)ethane (bpe) was synthesized from either thiazole or pyridine. Depending on the ligand content, a structural diversity from 3D-frameworks [LnCl3(bpe)2]·thz, Ln = Ce-Lu, to 1D-strands [La2Cl6(bpe)2(thz)6] and [LnCl3(bpe)(py)2]·(bpe/py), Ln = Gd, Er, was obtained and characterized by X-ray single crystal diffraction, powder diffraction, differential thermal analysis and thermogravimetry (DTA/TG), IR-spectroscopy and photoluminescence spectroscopy. The compounds exhibit a variety of luminescence properties and different phenomena. This includes ligand centred fluorescence, metal-centred 5d-4f/4f-4f emission in the visible and the NIR range, antenna effects via Dexter and Forster energy transfer mechanisms, excitation dependent emission with a correlating shift of the chromaticity coordinates and inner filter effects by combined re-absorption/emission.
Databáze:	OpenAIRE
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