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- Title
Protonated Organic Diamines as Templates for Layered and Microporous Structures: Synthesis, Crystal Chemistry, and Structural Trends among the Compounds Formed in Aqueous Systems Transition Metal Halide or Nitrate–Diamine–Selenious Acid.
- Authors
Charkin, Dmitri O.; Nazarchuk, Evgeny V.; Dmitriev, Dmitri N.; Grishaev, Vasili Yu.; Omelchenko, Timofey A.; Spiridonova, Darya V.; Siidra, Oleg I.
- Abstract
Systematic studies of crystalline compounds formed in aqueous systems containing aliphatic diamines, divalent transition metal halides, and selenious acid resulted in the discovery of a large family of new complex species corresponding to several new structure types. With ethylenediamine (en), layered (enH2)[M(HSeO3)2X2] compounds are the most commonly formed species which constitute a significant contribution to the family of layered hydrogen selenites containing neutral [M(HSeO3)2] (M = Mg, Mn, Co, Ni, Cu, Zn, Cd) 2D building blocks. In contrast to some previous suggestions, piperazine (pip), as well as its homologue N-methylpiperazine, mostly give rise to quite different, sometimes more complex, structures of varied dimensionality while the (pipH2)[M(HSeO3)2X2] compounds are formed only with M = Cu and Cd. In addition, metal-, halide-, or selenium-free by-product species are observed. The SeIV can be present in a multitude of forms, including H2SeO3, HSeO3−, SeO32−, and Se2O52−, reflecting amazing adaptability to the shape of the templating cations.
- Subjects
METAL halides; SELENITES; COPPER; DIAMINES; ETHYLENEDIAMINE; CRYSTALS; TRANSITION metal oxides; TRANSITION metals
- Publication
International Journal of Molecular Sciences, 2023, Vol 24, Issue 18, p14202
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms241814202