دورية أكاديمية
أعرض في EDS

Post-Synthetic Shaping of Porosity and Crystal Structure of Ln-Bipy-MOFs by Thermal Treatment.

التفاصيل البيبلوغرافية
العنوان: Post-Synthetic Shaping of Porosity and Crystal Structure of Ln-Bipy-MOFs by Thermal Treatment.
المؤلفون: Matthes PR; Institute of Inorganic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany. philipp_matthes@web.de., Schönfeld F; Institute of Inorganic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany. fabian_schoenf@hotmail.com., Zottnick SH; Institute of Inorganic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany. sven.zottnick@uni-wuerzburg.de., Müller-Buschbaum K; Institute of Inorganic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany. k.mueller-buschbaum@uni-wuerzburg.de.
المصدر: Molecules (Basel, Switzerland) [Molecules] 2015 Jul 03; Vol. 20 (7), pp. 12125-53. Date of Electronic Publication: 2015 Jul 03.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: MDPI Country of Publication: Switzerland NLM ID: 100964009 Publication Model: Electronic Cited Medium: Internet ISSN: 1420-3049 (Electronic) Linking ISSN: 14203049 NLM ISO Abbreviation: Molecules Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Basel, Switzerland : MDPI, c1995-
مواضيع طبية MeSH: Hot Temperature*, Lanthanoid Series Elements/*chemistry, Microscopy, Electron, Scanning ; Porosity ; Powder Diffraction
مستخلص: The reaction of anhydrous lanthanide chlorides together with 4,4'-bipyridine yields the MOFs 2∞[Ln2Cl6(bipy)3]·2bipy, with Ln = Pr - Yb, bipy = 4,4'-bipyridine, and 3∞[La2Cl6(bipy)5]·4bipy. Post-synthetic thermal treatment in combination with different vacuum conditions was successfully used to shape the porosity of the MOFs. In addition to the MOFs microporosity, a tuneable mesoporosity can be implemented depending on the treatment conditions as a surface morphological modification. Furthermore, thermal treatment without vacuum results in several identifiable crystalline high-temperature phases. Instead of collapse of the frameworks upon heating, further aggregation under release of bipy is observed. 3∞[LaCl3(bipy)] and 2∞[Ln3Cl9(bipy)3], with Ln = La, Pr, Sm, and 1∞[Ho2Cl6(bipy)2] were identified and characterized, which can also exhibit luminescence. Besides being released upon heating, the linker 4,4'-bipyridine can undergo activation of C-C bonding in ortho-position leading to the in-situ formation of 4,4':2',2'':4'',4'''-quaterpyridine (qtpy). qtpy can thereby function as linker itself, as shown for the formation of the network 2∞[Gd2Cl6(qtpy)2(bipy)2]·bipy. Altogether, the manuscript elaborates the influence of thermal treatment beyond the usual activation procedures reported for MOFs.
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فهرسة مساهمة: Keywords: Ln-MOFs; crystal structure; luminescence; metal-organic frameworks; shaping of porosity; thermal treatment
المشرفين على المادة: 0 (Lanthanoid Series Elements)
تواريخ الأحداث: Date Created: 20150708 Date Completed: 20160405 Latest Revision: 20200225
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC6332306
DOI: 10.3390/molecules200712125
PMID: 26151112
قاعدة البيانات: MEDLINE
الوصف
تدمد:1420-3049
DOI:10.3390/molecules200712125