{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,14]],"date-time":"2025-10-14T01:12:26Z","timestamp":1760404346540,"version":"build-2065373602"},"reference-count":59,"publisher":"Wiley","issue":"24","license":[{"start":{"date-parts":[[2008,7,10]],"date-time":"2008-07-10T00:00:00Z","timestamp":1215648000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Eur J Inorg Chem"],"published-print":{"date-parts":[[2008,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>An organic\u2013inorganic hybrid ligand silica was prepared by reaction of the ordered mesoporous silica MCM\u201041 with 3\u2010triethoxysilylpropyl 4\u2010pyridylacetamide. Elemental analysis indicated that a pyridyl group loading of 0.93 mmol\u2009g<jats:sup>\u20131<\/jats:sup> was achieved. The derivatised material was further characterised by powder X\u2010ray diffraction, N<jats:sub>2<\/jats:sub> adsorption, thermogravimetric analysis, FTIR and Raman spectroscopy, and <jats:sup>13<\/jats:sup>C and <jats:sup>29<\/jats:sup>Si CP MAS NMR spectroscopy. Pyridyl\u2010functionalised MCM\u201041 (L\u2033) was treated with chloroform solutions of lanthanide tris\u2010\u03b2\u2010diketonate complexes Ln(nta)<jats:sub>3<\/jats:sub>(H<jats:sub>2<\/jats:sub>O)<jats:sub>2<\/jats:sub> [Ln = Eu, Gd; nta = 1\u2010(2\u2010naphthoyl)\u20103,3,3\u2010trifluoroacetonate] to give the surface\u2010bound monosubstituted species Ln(nta)<jats:sub>3<\/jats:sub>(H<jats:sub>2<\/jats:sub>O)(L\u2033). The residual coordinated water molecules were subsequently replaced by pyridine (py) or methyl phenyl sulfoxide (mpso) to give immobilised Ln(nta)<jats:sub>3<\/jats:sub>(py)(L\u2033) and Ln(nta)<jats:sub>3<\/jats:sub>(mpso)(L\u2033) species. Photoluminescence studies were carried out at room temperature and 14 K. The emission spectra of the Eu\u2010modified materials were dominated by the typical Eu<jats:sup>3+<\/jats:sup> red lines ascribed to transitions between the <jats:sup>5<\/jats:sup>D<jats:sub>0<\/jats:sub> excited state and the ground multiplet (<jats:sup>7<\/jats:sup>F<jats:sub>0\u20134<\/jats:sub>), and only very weak or negligible emission from the organic ligands are observed. Variation of the excitation wavelength confirmed that all of the Eu<jats:sup>3+<\/jats:sup> ions occupied the same average local environment within each sample. By comparison with the photoluminescence data for the nonsupported Eu(nta)<jats:sub>3<\/jats:sub>(py)<jats:sub>2<\/jats:sub> and Eu(nta)<jats:sub>3<\/jats:sub>(mpso)<jats:sub>2<\/jats:sub> complexes, it is shown that the interaction between the host and guest has a strong effect on the excited states of the organic ligands; Eu<jats:sup>3+<\/jats:sup> sensitisation occurs exclusively through the ligands rather than by direct intra\u20104f<jats:sup>6<\/jats:sup> excitation.(\u00a9 Wiley\u2010VCH Verlag GmbH &amp; Co. KGaA, 69451 Weinheim, Germany, 2008)<\/jats:p>","DOI":"10.1002\/ejic.200800367","type":"journal-article","created":{"date-parts":[[2008,7,10]],"date-time":"2008-07-10T11:46:13Z","timestamp":1215690373000},"page":"3786-3795","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["MCM\u201041 Derivatised with Pyridyl Groups and Its Use as a Support for Luminescent Europium(III) Complexes"],"prefix":"10.1002","volume":"2008","author":[{"given":"Sofia M.","family":"Bruno","sequence":"first","affiliation":[]},{"given":"Ana C.","family":"Coelho","sequence":"additional","affiliation":[]},{"given":"Rute A. 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