Abstract The single crystals of diaquabis(hydrogenmalonato)cobalt(II) were synthesized and grown using the slow evaporation of solutions method. The structure of the compound was obtained through single crystal XRD analyses and it belongs to P21/c space group of monoclinic system. The UV-vis absorption spectrum exhibits two peaks at 216 nm and 259 nm in the UV region and one peak at 524 nm in the visible region. Photoluminescence studies revealed emission of intense blue radiation. The thermal stability and decomposition stages have been investigated by TGA-DTA analysis. The magnetic measurements exposed that the compound exhibits antiferromagnetic behavior at low temperature.

中文翻译：

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发蓝光的双(氢丙二酸)钴(II)的晶体生长、光谱、光学、热、发光和磁特性

摘要 采用溶液缓慢蒸发法合成并生长了双(氢丙二酸)钴(II)单晶。该化合物的结构通过单晶XRD分析得到，属于单斜晶系P21/c空间群。紫外-可见吸收光谱在紫外区的 216 nm 和 259 nm 处有两个峰，在可见区的 524 nm 处有一个峰。光致发光研究揭示了强烈的蓝色辐射的发射。通过 TGA-DTA 分析研究了热稳定性和分解阶段。磁性测量表明该化合物在低温下表现出反铁磁性。