Synthesis and Structural Characterization of a Two‐Dimensional Magnesium Acetate, Mg7(OH)2(OAc)12(H2O)4·4H2O, a Precursor to Three‐Dimensional Porous Magnesium Acetate. Issue 20 (14th June 2016)

• Record Type: Journal Article
• Authors: Shi, Qi; Guan, Youjun; Wang, Fei; Yang, Jiangfeng; Li, Libo; Li, Jinping; Dong, Jinxiang; Shi, Fa‐Nian
• Is Part Of: European journal of inorganic chemistry. Issue 20(2016)
• Page Start: 3299
• Page End: 3304
• Publication Date: 2016-06-14
• Subjects: Metal–organic frameworks -- Metal–organic oxides -- Microporous materials -- Phase transitions -- Magnesium; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201600249
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : A new two‐dimensional (2D) magnesium acetate, Mg7 (OH)2 (OAc)12 (H2 O)4 · 4H2 O (1 ), was obtained from zero‐dimensional (0D) magnesium acetate tetrahydrate as a single source of the metal and carboxylate ions with nonpolar benzene as the solvent. Compound1 exhibits an unusual 2D inorganic [Mg7 (OH)2 (O)23 (H2 O)4 ] n subnetwork, which underlines the rich synthetic and structural chemistry of metal acetates that is yet to be explored. The thermogravimetry/differential scanning calorimetry (TG‐DSC) analysis of1 was performed under an air atmosphere. A plateau in the temperature range between 200 and 300 °C was observed in TG curve, and an interesting phenomenon was found in the DSC curve; an exothermic event at ca. 240 °C was attributed to a phase transformation of1 . From1 as a single precursor, the three‐dimensional (3D) porous magnesium acetate framework Mg5 (OH)2 (OAc)8 was successfully prepared at 250 °C in air. Single crystals of Mg5 (OH)2 (OAc)8 were obtained through a solution‐mediated transformation with benzene as the solvent. Abstract : A new 2D magnesium acetate, Mg7 (OH)2 (OAc)12 (H2 O)4 · 4H2 O, was obtained from zero‐dimensional magnesium acetate tetrahydrate as a single source of the metal and carboxylate ions with nonpolar benzene as the solvent. Mg7 (OH)2 (OAc)12 (H2 O)4 · 4H2 O exhibits an unusual 2D inorganic [Mg7 (OH)2 (O)23 (H2 O)4 ] n subnetwork and converts into 3D porous magnesium acetate at 250 °C in air.