Metal-organic frameworks based on copper(I) iodide and pyridine-3,5-dicarboxylic acid: Synthesis, crystal structures and luminescent properties

详细信息    查看全文

• 作者：Selç ; uk Demir^a ; ^{selcuk.demir@erdogan.edu.tr" class="auth_mail" title="E-mail the corresponding author} ; Hamide Merve Ç ; epni^a ; Nuray Bilgin^a ; Małgorzata Hołyńska^b ; Fatih Yilmaz^a
• 关键词：Metal&ndash ; organic framework ; Pyridine-3 ; 5-dicarboxylic acid ; Porosity ; Luminescent ; Cluster
• 刊名：Polyhedron
• 出版年：2016
• 出版时间：5 September 2016
• 年：2016
• 卷：115
• 期：Complete
• 页码：236-241
• 全文大小：1305 K

文摘

Two metal–organic frameworks (MOFs) with pyridine-3,5-dicarboxylic acid (H₂pdc), {[Cu^II][Cu^II(pdc)(H₂O)]·1.5MeCN·H₂O}_n (1) and {[Cu(MeCN)₄]·2[Cu^II]·2[Cu^II₂(pdc)₂(H₂O)_1.5(OH)_0.5]·MeCN·4AcOH·8H₂O}_n, (2) (MeCN = acetonitrile, AcOH = acetic acid), containing both [Cu_xI_x] (x = 4 for 1 and x = 2 for 2) and Cu₂(COO)₄ clusters at the same time, were synthesized solvothermally and characterized by means of spectroscopic and X-ray diffraction techniques. These MOFs are constructed of Cu⁺/Cu²⁺ cations, pyridine-3,5-dicarboxylate and iodide anions and water molecules as terminal ligands. [Cu(MeCN)₄]⁺ complex cations are embedded in the channels of 7.7 × 9.2 Å diameter in between the columns of the [Cu₂I₂] units of the compound 2. The Brauner–Emmett–Teller specific surface areas are of 498 and 515 m²/g for 1 and 2, respectively. While 1 and 2 show cluster-based luminescence, the luminescent property of 2 is “on” after 2-nitrotoluene loading.