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An Expedition on Alkali and Alkaline‐Earth Isocyanurate Hydrates: Structure Elucidation, Thermogravimetry, and Spectroscopy
Author(s) -
Gross Peter,
Höppe Henning A.
Publication year - 2017
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201700254
Subject(s) - thermogravimetry , alkali metal , aqueous solution , alkaline earth metal , chemistry , crystal structure , nuclear chemistry , spectroscopy , infrared spectroscopy , base (topology) , crystallography , inorganic chemistry , organic chemistry , physics , mathematical analysis , mathematics , quantum mechanics
Several alkali and alkaline earth (iso)cyanurates were synthesized by simple aqueous acid‐base reactions and aqueous salt metathesis reactions, respectively, yielding nine new structure types. Single‐crystals could be grown and the crystal structures of Rb[H 2 C 3 N 3 O 3 ] · H 2 O‐I, Rb[H 2 C 3 N 3 O 3 ] · H 2 O‐II, Cs[H 2 C 3 N 3 O 3 ] · 0.5H 2 O, Sr[H 2 C 3 N 3 O 3 ] 2 · 4H 2 O, Ba 3 [H 2 C 3 N 3 O 3 ] 2 [HC 3 N 3 O 3 ] 2 · 4H 2 O, Ca[HC 3 N 3 O 3 ] · 3.5H 2 O, Sr[HC 3 N 3 O 3 ] · 3H 2 O, Sr[HC 3 N 3 O 3 ] · 2H 2 O, and Sr 2 [C 3 N 3 O 3 ]OH were elucidated by single‐crystal XRD. Rb 3 [H 2 C 3 N 3 O 3 ] 3 [H 3 C 3 N 3 O 3 ] · 4H 2 O, Cs[H 2 C 3 N 3 O 3 ] · 0.5H 2 O, and Sr[HC 3 N 3 O 3 ] · 2H 2 O were synthesized as phase pure, crystalline powders and were further characterized by powder XRD, FT‐IR spectroscopy, UV/Vis spectroscopy, and thermogravimetry. Sr[HC 3 N 3 O 3 ] · 2H 2 O was shown to be an air‐ and water‐resistant, cheap and easily obtained precursor for the phase‐pure synthesis of Sr 3 [C 3 N 3 O 3 ] 2 , a promising SHG material, and Sr[NCN]. Moreover, an interesting dependence of the polymeric anion structure from its protonation degree was observed.