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A Comprehensive Study on the Full Series of Alkali‐Metal Selenocyanates A I [SeCN] ( A I =Li−Cs)
Author(s) -
Shlyaykher Alena,
Ehmann Marvin,
Karttunen Antti J.,
Tambornino Frank
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202102058
Subject(s) - chemistry , alkali metal , raman spectroscopy , hydrate , melting point , transition metal , inorganic chemistry , organic chemistry , physics , optics , catalysis
Abstract The full series of quasibinary alkali‐metal selenocyanates was synthesized either by oxidation of the respective cyanides ( A =Li−Rb) or by metathesis ( A =Cs). For Li[SeCN] only ball‐milling and subsequent annealing led to the isolation of the quasibinary selenocyanate. Their structures were refined from single‐crystal and powder X‐ray data. The respective solid‐state IR and Raman spectra were interpreted with the aid of solid‐state quantum‐mechanical calculations and DSC‐TGA measurements allowed for extraction of melting points. Only for Li[SeCN] a possible phase transition was observed that is discussed on the basis of VT‐PXRD experiments. It is also the only quasibinary selenocyanate to form a hydrate (Li[SeCN] ⋅ 2H 2 O).