Synthesis of a tweezer-like bis(arylthiaalkoxy)calix[4]arene as a cation sensor for ion-selective electrodes: an investigation of the influence of neighboring halogen atoms on cation selectivityCCDC reference number 198110. See http://www.rsc.org/suppdata/ob/b2/b211381c/ for crystallographic data in .cif format.Dedicated to Prof. Zhi-Tang Huang on the occasion of his 75th birthday.
作者:Xianshun Zeng、Hao Sun、Langxing Chen、Xuebing Leng、Fengbo Xu、Qinshan Li、Xiwen He、Wenqin Zhang、Zheng-Zhi Zhang
DOI:10.1039/b211381c
日期:2003.3.13
Two novel tweezer-like 25,27-dihydroxy-26,28-bis(phenylthiaethoxy)calix[4]arenes 6 and 7 were synthesized by the reaction of 25,27-dihydroxy-26,28-bis(bromoethoxy)calix[4]arenes 3 and 4 for the evaluation of their ion-selectivity in ion-selective electrodes (ISEs). X-ray structural analysis indicated that calix[4]arene 7 is in an interesting infinite linear aggregate via self-inclusion. For investigation
25,27-二羟基-26,28-双(溴乙氧基)杯[4]合成了两个新颖的镊子状25,27-二羟基-26,28-双(苯基乙乙氧基)杯[4]芳烃6和7。芳烃3和4用于评估其在离子选择电极(ISE)中的离子选择性。X射线结构分析表明,杯[4]芳烃7通过自包含成为一种有趣的无限线性聚集体。为了研究替代物对ISE行为的影响,还合成了25,27-二羟基-26,28-双(芳基噻乙氧基)杯[4]芳烃8-12的卤素取代的芳基类似物,并获得了ISE性能。在相同条件下进行评估。制备了以6-12作为中性离子载体的ISE,并研究了其对Ag +(log KAg,M(pot))对其他碱金属,碱土金属,铅,铵离子和一些过渡金属离子采用固定干扰法(FIM)。这些ISE相对于所检查的大多数干扰阳离子均表现出优异的Ag +选择性,但Hg2 +的干扰相对较小(log KAg,Hg(pot)<或= 2.1)。记录9和9.AgClO4的19F