Obtaining transparent glasses made of functional coordination polymers (CPs) represents a tremendous opportunity for optical applications. In this context, the first transparent and red-emissive glasses of gold thiolate CPs have been obtained by simply applying mechanical pressure to amorphous powders of CPs. The three gold-based CP glasses are composed of either thiophenolate [Au(SPh)]_n, phenylmethanethiolate [Au(SMePh)]_n or phenylethanethiolate [Au(SEtPh)]_n. The presence of a longer alkyl chain between the thiolate and the phenyl ring led to the formation of glass with higher transparency. The glass transitions, measured by thermomechanical analysis (TMA), occurred at lower temperature for CPs with longer alkyl chains. In addition, all three gold thiolate glasses exhibit red emission at 93 K and one of them, [Au(SMePh)]_n, remains luminescent even at room temperature. An in-depth structural study of the amorphous gold thiolates by XRD, PDF and EXAFS analysis showed that they are formed of disordered doubly interpenetrated helical chains. These d¹⁰ metal-based compounds represent the first examples of transparent and luminescent CP glasses.

中文翻译：

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透明和发光的硫醇金配位聚合物玻璃

获得由功能配位聚合物（CP）制成的透明玻璃代表了光学应用的巨大机会。在这种情况下，已经通过简单地将机械压力施加到无定形的CPs上而获得了第一批透明的和红色发射的硫醇金CPs。这三种基于金的CP玻璃由硫酚盐[Au（SPh）] _n，苯甲硫醇盐[Au（SMePh）] _n或苯乙硫醇盐[Au（SEtPh）] _n组成。硫醇盐和苯环之间存在较长的烷基链，导致形成具有更高透明度的玻璃。通过热力学分析（TMA）测量的玻璃化转变发生在较低温度下，带有较长烷基链的CPs。此外，所有三片硫醇金玻璃均在93 K处显示红色发射，其中之一[Au（SMePh）] _n即使在室温下仍保持发光。通过XRD，PDF和EXAFS分析对无定形硫醇金进行了深入的结构研究，结果表明它们由无序的双互穿螺旋线链形成。这些d ¹⁰金属基化合物代表透明和发光CP玻璃的第一个示例。