Synthesis, Structure, and Electronic Properties of Sn(CN) and SnCl(CN).

A solid-state metathesis reaction between equimolar amounts of Li(CN) and SnCl revealed the formation of two new compounds, SnCl(CN) and Sn(CN). Thermal analysis of this reaction indicated that SnCl(CN) forms exothermically near 200 °C and subsequently transforms into Sn(CN) at higher temperatures. The crystal structures of both compounds are presented.

Tin(ii) oxide carbodiimide and its relationship to SnO.

The compound Sn2O(CN2) was obtained as a brick-red crystalline powder from a solid-state reaction of equimolar amounts of SnCl2, SnO and Li2(CN2). Thermal analysis of the reaction indicates the formation of two intermediate compounds until Sn2O(CN2) is formed at 400 °C. The crystal structure of Sn2O(CN2) was determined in the space group Pccn (a = 13.

Synthesis and thermoelastic properties of Zr(CN) and Hf(CN).

Two binary transition metal cyanamides, Zr(CN2)2 and Hf(CN2)2, were prepared by solid-state metathesis (SSM) reactions and separately controlled by differential thermoanalysis (DTA). The crystal structure of Hf(CN2)2 was solved and refined from a single-phase crystal powder by X-ray diffraction (XRD) in the space group Pbcn. Zr(CN2)2 was characterized by isotypic indexing.

Formation, Structure, and Frequency-Doubling Effect of a Modification of Strontium Cyanurate (α-SCY).

The low-temperature modification of Sr(OCN) was prepared and assigned as α-SCY after the high-temperature phase (now called β-SCY) and its frequency-doubling properties were reported recently. The crystal structure of α-SCY was solved and refined by single-crystal X-ray diffraction. Both modifications of SCY crystallize in noncentrosymmetric space groups, with the low-temperature phase (α-SCY) adopting the lower symmetry structure (Cc).