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在乙腈介质中培养出硝酸钪和苯并-15-冠-5形成的配合物单晶[Sc(NO_3),(H_2O)_2)。(B15C5),对其进行了熔点、元素分析、红外光谱、摩尔电导等方面的鉴定。X射线结构分析表明,该晶体属单斜晶系,空间群为P2_(1/n),晶胞参数为:α=9.405(6),b=15.569(8),c=15.896(2),β=95.92(1)°,V=2315.5~3,,Z=4,D_c=1.53g/cm~3,D_0=1.54g/cm~3。Sc(Ⅲ)离子同三个双齿硝酸根和两个水分子配位,构成八配位的配合物,并通过氢键与冠醚形成分子缔合物。
Single crystal [Sc (NO_3), (H_2O) _2) of scandium nitrate and benzo-15-crown-5 was grown in acetonitrile medium. (B15C5), its melting point, elemental analysis, infrared spectroscopy, molar conductivity and other aspects of the identification. The X-ray structure analysis shows that the crystal belongs to the monoclinic system with space group P2_ (1 / n). The unit cell parameters are α = 9.405 (6), b = 15.569 (8) and c = 15.896 β = 95.92 (1) °, V = 2315.5 ~ 3, Z = 4, D_c = 1.53 g / cm ~ 3 and D_0 = 1.54 g / cm ~ 3. Sc (Ⅲ) ions coordinate with three bidentate nitrates and two water molecules to form octa coordinate complexes, and form molecular association with crown ether through hydrogen bonding.