Mixed-Metal Imidazolates Containing Alkali and Alkaline Earth Metals: Mechanochemical Synthesis and Crystal Structure of AMgIm<sub>3</sub> (A = Na or K)

Article Article scientifique Article Mixed-Metal Imidazolates Containing Alkali and Alkaline Earth Metals: Mechanochemical Synthesis and Crystal Structure of AMgIm<sub>3</sub> (A = Na or K) eng 2019 author Burazer Sanja 867720 author Morelle Fabrice author Filinchuk Radovan author Cerny Radovan 28214 author Popović Jasminka 6927-6933 10.1021/acs.inorgchem.9b00446 0020-1669 https://pubs.acs.org/doi/10.1021/acs.inorgchem.9b00446 The first bimetallic imidazolates containing alkali and alkaline earth metals, NaMgIm3 and KMgIm3, respectively, are prepared by mechanochemical synthesis and are 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 were followed by an in situ high-temperature X-ray powder diffraction experiment utilizing synchrotron radiation. In both compounds, the imidazolate ligand is connected to four metal cations forming a complex three-dimensional network with channels running along the c-direction. NaMgIm3 and KMgIm3 are the first members of a new family of imidazolate frameworks with stp topology. The 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. Imidazolate Powder Diffraction Dewey 500.2 Swiss National Science Foundation IZ73ZO_152397 CH Autre Croatian Science Foundation, FNRS 33 Département de physique de la matière quantique 131 false 806 Groupe Cerny Inorganic Chemistry 58 10 09d70c28-bec0-454b-a91f-1041629fb6fb Article (Published version) Restricted reprint-2.pdf 4374269 application/pdf restrictedAccess Faculté des sciences / Section de physique / Département de physique de la matière quantique

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Mixed-Metal Imidazolates Containing Alkali and Alkaline Earth Metals: Mechanochemical Synthesis and Crystal Structure of AMgIm₃ (A = Na or K)	Inorganic Chemistry			2019	383	0

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