Room-temperature emission from platinum(II) complexes intercalated into zirconium phosphate-layered materials.
Room-temperature emission from platinum(II) complexes intercalated into zirconium phosphate-layered materials.
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DOI：
10.1021/ic7006183
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发表时间：
2007-09
影响因子：
4.6
通讯作者：
Eladio J. Rivera;C. Figueroa;J. Colón;L. Grove;W. Connick
中科院分区：
文献类型：
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作者：
Eladio J. Rivera;C. Figueroa;J. Colón;L. Grove;W. Connick
本文报道了磷酸锆（ZrP）骨架中氯（2，6-二（N-甲基苯并咪唑-2-基）吡啶）铂（II）（[Pt（Me（2）bzimpy）Cl]+）和氯（2，2 '：6'，2“'-三联吡啶）铂（II）（[Pt（tpy）Cl]+）配合物的直接离子交换反应。用X射线粉末衍射、X射线光电子能谱、红外光谱、吸收光谱和荧光光谱研究了[Pt（Me（2）bzimpy）Cl]+和[Pt（tpy）Cl]+插层ZrP的物理和光谱性质。与在室温下不发射的流体溶液中的未插层复合物相反，在固态和胶体悬浮液中的插层材料在室温下都表现出强烈的发射。[Pt（Me（2）bzimpy）Cl]+交换的ZrP胶体甲醇悬浮液在612 nm处产生发射，该发射起源于强Pt的最低（3）MMLCT[dsigma*（Pt）--> pi*（tpy）]态（MMLCT =金属-金属-配体电荷转移）特征。患者相互作用。[Pt（tpy）Cl]+交换的ZrP胶体水悬浮液在600 nm处显示出强发射带。累积的数据表明，在高浓度下，[Pt（Me（2）bzimpy）Cl]+和[Pt（tpy）Cl]+离子可以作为ZrP骨架内的发光柱。
The direct ion exchange of chloro(2,6-bis(N-methylbenzimidazol-2-yl)pyridine)platinum(II) ([Pt(Me(2)bzimpy)Cl]+) and chloro(2,2':6',2' '-terpyridine)platinum(II) ([Pt(tpy)Cl]+) complexes within a zirconium phosphate (ZrP) framework has been accomplished. The physical and spectroscopic properties of [Pt(Me(2)bzimpy)Cl]+ and [Pt(tpy)Cl]+ intercalated in ZrP were investigated by X-ray powder diffraction and X-ray photoelectron, infrared, absorption, and luminescence spectroscopies. In contrast to unintercalated complexes in fluid solution, which do not emit at room temperature, both intercalated materials in the solid state and in colloidal suspensions exhibit intense emissions at room temperature. A [Pt(Me(2)bzimpy)Cl]+-exchanged ZrP colloidal methanol suspension gives rise to an emission at 612 nm that originates from a lowest (3)MMLCT[dsigma*(Pt) --> pi*(tpy)] state (MMLCT = metal-metal-to-ligand charge transfer) characteristic of strong Pt...Pt interactions. A [Pt(tpy)Cl]+-exchanged ZrP colloidal aqueous suspension exhibits a strong emission band at 600 nm. The accumulated data demonstrate that at high concentrations, [Pt(Me(2)bzimpy)Cl]+ and [Pt(tpy)Cl]+ ions can serve as luminescent pillars inside the ZrP framework.