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    • 8. 发明授权
    • Ligand exchange thermochromic systems and high ε ligands for same
    • 配体交换热变色系统 配体相同
    • US08182718B2
    • 2012-05-22
    • US11849624
    • 2007-09-04
    • Harlan J. BykerPaul H. Ogburn, Jr.Douglas A. Vander GriendBrad S. VeldkampDerick D. Winkle
    • Harlan J. BykerPaul H. Ogburn, Jr.Douglas A. Vander GriendBrad S. VeldkampDerick D. Winkle
    • G01N31/00
    • C09K9/02B32B17/10036B32B17/10174B32B17/10477B32B17/10651B32B17/10678B32B17/10761C09K2211/187G02F1/0147B32B17/10B32B2367/00B32B2369/00
    • Ligand exchange of thermochromic, LETC, systems exhibiting a reversible change in absorbance of electromagnetic radiation as the temperature of the system is reversibly changed are described. The described LETC systems include one or more than one transition metal ion, which experiences thermally induced changes in the nature of the complexation or coordination around the transition metal ion(s) and, thereby, the system changes its ability to absorb electromagnetic radiation as the temperature changes.In accordance with certain aspects of the present invention, a thermochromic system is disclosed comprising a transition metal ion and a ligand wherein the ligand comprises a nitrogen-containing five or six membered heterocyclic compound that coordinates through the nitrogen atom to the transition metal ion in a HεMLC formed between the transition metal ion and the ligand.In accordance with other aspects of the present invention, thermochromic systems are disclosed comprising a transition metal ion with particularly useful ligands, such as phosphine compounds, tridentate ligands that coordinate through three nitrogen atoms, bidentate ligands, or ortho hindered pyridine monodentate ligands.
    • 描述了随着系统温度的可逆变化,热致变色LETC,电磁辐射吸收率呈现可逆变化的系统的配位交换。 所描述的LETC系统包括一个或多于一个的过渡金属离子,其经历过渡金属离子周围的络合或配位性质的热诱导变化,从而系统改变其吸收电磁辐射的能力,如 温度变化。 根据本发明的某些方面,公开了一种包含过渡金属离子和配体的热致变色体系,其中配体包括通过氮原子与过渡金属离子配位的含氮五或六元杂环化合物 在过渡金属离子和配体之间形成H& MLC。 根据本发明的其他方面,公开了包含具有特别有用的配体的过渡金属离子的热致变色体系,例如膦化合物,通过三个氮原子配位的三齿配体,二齿配体或邻位受体吡啶单齿配体。