Abstract Lanthanide aceclofenac compounds were synthesized by the addition of lanthanide nitrate aqueous solution to aceclofenac–acetone solution. The compounds obtained in the solid state were characterized by thermal and spectroscopic studies, as well as by complementary x-ray diffraction data. The metal–ligand stoichiometric ratio was defined by simultaneous thermogravimetry and differential scanning calorimetry (TG-DSC) as [Ln(Acec)3·nH2O], where Ln represents the metal centre (La, Ce, Pr, or Nd) and Acec represents the ligand, with n = 4(La), 3(Ce), and 2.5(Pr, Nd). TG-DSC and Fourier transform infrared spectroscopy (FTIR) data also allowed for determination of the thermal behaviour and possible coordination modes between the metal and the ligand.

中文翻译：

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固态轻镧系元素醋氯芬酸的合成、表征和热分析研究（La、Ce、Pr ​​和 Nd）

摘要 通过在醋氯芬酸-丙酮溶液中加入硝酸镧水溶液合成镧系醋氯芬酸化合物。以固态获得的化合物通过热和光谱研究以及补充 X 射线衍射数据进行表征。金属配体化学计量比通过同步热重法和差示扫描量热法 (TG-DSC) 定义为 [Ln(Acec)3·nH2O]，其中 Ln 代表金属中心（La、Ce、Pr ​​或 Nd），Acec 代表配体，n = 4(La)、3(Ce) 和 2.5(Pr, Nd)。TG-DSC 和傅里叶变换红外光谱 (FTIR) 数据还允许确定金属和配体之间的热行为和可能的配位模式。