Structural chemistry of organically templated transition metal phosphite chlorides, [BH2][M(H2PO3)2Cl2] (B = diamine, M = Mn–Ni, Cd) as new analogs of “hydroselenite halides”
Dmitri O. Charkin, Vadim E. Kireev, Dmitri N. Dmitriev, Alexander M. Banaru, Dina V. Deyneko, Sergey M. Aksenov
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引用次数: 0
Abstract
Following the previously reported (enH2)[Co(H2PO3)2Cl2] (enH2 = ethylenediammonium cation), we successfully prepared its analogs with other divalent transition metal cations: Mn2+, Fe2+, Ni2+, and Cd2+. These compounds are isostructural to each other and the archetypic hydroselenites, (enH2)[M(HSeO3)2X2]. Despite evident similarities, some essential differences are observed between hydroselenites and hydrophosphites, both in chemistry and in structural details. Due to smaller size of H2PO3− relative to HSeO3−, only chloride phosphites could be prepared; the reducing capacity of H2PO3− permits preparation of FeII compound but not that of CuII. A single attempt to introduce piperazinediium cation instead of ethylenediammonium results in formation of (pipH2)[Co(H2PO3)2Cl2] with a structure different from (pipH2)[Cd(HSeO3)2Cl2]. Another serendipitous product is the 1-methylpiperazinediium derivative, (mpipH2)2[Co(H2PO3)2I3][H(H2PO3)2], which features a yet unique complex hydrogen-bonded network.
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Structural Chemistry is an international forum for the publication of peer-reviewed original research papers that cover the condensed and gaseous states of matter and involve numerous techniques for the determination of structure and energetics, their results, and the conclusions derived from these studies. The journal overcomes the unnatural separation in the current literature among the areas of structure determination, energetics, and applications, as well as builds a bridge to other chemical disciplines. Ist comprehensive coverage encompasses broad discussion of results, observation of relationships among various properties, and the description and application of structure and energy information in all domains of chemistry.
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