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Mixed-metal imidazolates containing alkali and alkaline earth metals: mechanochemical synthesis and crystal structure of AMgIm3 (A=Na, K)

Popović, Jasminka; Burazer, Sanja (2019) Mixed-metal imidazolates containing alkali and alkaline earth metals: mechanochemical synthesis and crystal structure of AMgIm3 (A=Na, K). Inorganic chemistry, 58 (10). pp. 6927-6933. ISSN 0020-1669

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Abstract

First bimetallic imidazolates containing alkali and alkaline earth metals, NaMgIm3 and KMgIm3, prepared by mechanochemical synthesis, and reported in this paper. NaMgIm3 has been prepared by the reaction between NaIm and Mg(BH4)2 as well as directly from NaIm and MgIm2. Structural evolution and thermal stability was followed by in-situ high temperature XRPD experiment utilizing synchrotron radiation. In both compounds, the imidazolate ligand is connected to four metal cations forming a complex 3D network with channels running along the c-direction. NaMgIm3 and KMgIm3 are the first members of new family of imidazolate frameworks with stp topology. Formation of mixed alkali metal imidazolate compounds is thermodynamically controlled: LiIm and MgIm2 have not yielded a mixed-metal compound while KIm reacts swiftly and forms KMgIm3.

Item Type: Article
Additional Information: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.inorgchem.9b00446
Uncontrolled Keywords: imidazolates
Subjects: NATURAL SCIENCES > Chemistry > Inorganic Chemistry
Divisions: Division of Materials Physics
Depositing User: Jasminka Popović
Date Deposited: 07 Dec 2020 11:40
Last Modified: 07 Dec 2020 11:40
URI: http://fulir.irb.hr/id/eprint/6059
DOI: 10.1021/acs.inorgchem.9b00446

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