Hydrothermal Synthesis of 3D Copper(II)‐Organic Frameworks: In situ Formation of 3‐Hydroxopyrazine‐2‐carboxylate from 3‐Aminopyrazine‐2‐carboxylic Acid. Issue 12 (15th August 2013)

• Record Type: Journal Article
• Authors: Dehghanpour, Saeed; Jahani, Khadijeh; Mahmoudi, Ali; Babakhodaverdi, Mogtaba; Tabatabaei, Robabehsadat; Notash, Behrouz
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 639:Issue 12/13(2013)
• Page Start: 2312
• Page End: 2316
• Publication Date: 2013-08-15
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.201300253
• Languages: English
• ISSNs: 0044-2313

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p> <bold>Abstract.</bold> The metal organic framework, [Cu₅(C₅H₂N₂O₃)₄(H₂O)₄(NO₃)₂<bold>·</bold>10H₂O]<italic>_n</italic> (<bold>1</bold>), was synthesized by a hydrothermal reaction via copper nitrate and in situ generated 3‐hydroxopyrazine‐2‐carboxylate from 3‐aminopyrazine‐2‐carboxylic acid. Compound <bold>1</bold> was characterized by elemental analysis, infrared spectroscopy, TG analysis, and single‐crystal X‐ray diffraction. It has a 3D structure constructed from Cu²⁺ cations, bridging NO₃^– anions, and 3‐hydroxopyrazine‐2‐carboxylate units. The NO₃^– anions act as μ₂‐bridging ligand and the 3‐hydroxopyrazine‐2‐carboxylate units coordinate pentadentately through the two oxygen atoms of their carboxylate group, the oxygen atom of the hydroxyl group and two nitrogen atoms. The ligands link the Cu^II ions to form trinuclear units. These are further connected to form a novel 3D MOF, with a novel 4‐nodal 3, 3, 3, 4‐connected net topology of an unprecedented point (Schläfli) symbol (6.7.9)(6⁴.8.9)(7.10²)(7².10).</p> </abstract>