配合物Fe(L)2(PF6)2的合成及其对部分过渡金属离子荧光选择

来源 :中南民族大学学报(自然科学版) | 被引量 : 0次 | 上传用户:henban
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将硫酸亚铁铵和有机配体L在NH4PF6 存在下制得一个含三联吡啶配合物 Fe(L) 2(PF6) 2 (L=4′-苯基-2, 2′:6′,2″-三联吡啶),并对其进行了元素分析、电子吸收光谱和红外光谱等结构表征.配合物的电子吸收光谱的研究表明:相对于前体L,配合物在565 nm出现的新峰可以归属为MLCT(metal-to-ligand charge transfer) 跃迁.配合物的荧光选择性研究表明:Zn(Ⅱ)和Cd(Ⅱ)的加入能增强配合物的荧光强度,Fe(Ⅲ)、Pb(Ⅱ)、Co(Ⅱ)、Cr(Ⅲ)、Fe(Ⅱ)、Mn(Ⅱ)、Ni(Ⅱ)和Fe(Ⅱ)的加入能完全或者部分猝灭其荧光强度.
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