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] ⋅ 2H₂O).

中文翻译：

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全系列碱金属硒氰酸盐AI[SeCN] (AI=Li−Cs)的综合研究

全系列准二元碱金属硒氰酸盐通过各自氰化物的氧化（A = Li-Rb）或复分解（A = Cs）合成。对于 Li[SeCN]，只有球磨和随后的退火才能分离出准二元硒氰酸酯。它们的结构是从单晶和粉末 X 射线数据中提炼出来的。借助固态量子力学计算和 DSC-TGA 测量来解释各自的固态 IR 和拉曼光谱，以提取熔点。仅对于 Li[SeCN] 观察到可能的相变，这在 VT-PXRD 实验的基础上进行了讨论。它也是唯一一种形成水合物的准二元硒氰酸酯 (Li[SeCN] ⋅ 2H ₂ O)。