Transparent and luminescent glasses of gold thiolate coordination polymers.
Transparent and luminescent glasses of gold thiolate coordination polymers.
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透明和发光的金硫醇酸盐配位聚合物。
DOI：
10.1039/d0sc02258f
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发表时间：
2020-07-14
期刊：
影响因子：
8.4
通讯作者：
Demessence A
中科院分区：
文献类型：
--
作者：
Vaidya S;Veselska O;Zhadan A;Diaz-Lopez M;Joly Y;Bordet P;Guillou N;Dujardin C;Ledoux G;Toche F;Chiriac R;Fateeva A;Horike S;Demessence A
无定形金硫醇盐配位聚合物上的低机械压力允许形成透明和红色发射玻璃。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，第一个透明和红色发射玻璃的金硫醇盐CP已获得通过简单地施加机械压力的CP的无定形粉末。这三种金基阴极保护玻璃分别由硫酚盐[Au（SPh）]n、苯硫代甲烷盐[Au（SMePh）]n和苯硫代乙烷盐[Au（SEtPh）]n组成。在硫醇盐和苯环之间存在较长的烷基链导致形成具有较高透明度的玻璃。的玻璃化转变，测量的热机械分析（TMA），发生在较低的温度与较长的烷基链的CP。此外，所有三个金硫醇盐玻璃表现出红色发射在93 K，其中之一，[Au（SMePh）]n，即使在室温下仍然发光。通过XRD、PDF和EXAFS等方法对非晶态硫醇金的结构进行了深入的研究，结果表明它们是由无序的双螺旋链相互贯穿而成。这些d10金属基化合物代表了透明和发光CP玻璃的第一个例子。
Low mechanical pressure on amorphous gold thiolate coordination polymers allows the formation of transparent and red emissive glasses. 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.
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影响因子：
4.3
作者：
Bennett, Thomas D.;Saines, Paul J.;Cheetham, Anthony K.
通讯作者：
Cheetham, Anthony K.
影响因子：
15
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影响因子：
16.6
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通讯作者：
Greaves GN
影响因子：
3.7
作者：
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通讯作者：
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影响因子：
8.6
作者：
Levchenko, AA;Yee, CK;Navrotsky, A
通讯作者：
Navrotsky, A