Laboratory of Organic and Macromolecular Chemistry, Friedrich-Schiller-University Jena, Humboldtstr. 10, 07743 Jena, Germany.
Analyst. 2012 May 21;137(10):2333-7. doi: 10.1039/c2an35119f. Epub 2012 Mar 28.
A poly(ethylene glycol) (PEG) decorated bis(terpyridine) zinc coordination polymer acts as an anion-responsive material in 100% aqueous solution. Depending on the binding and association constants to Zn(II), the addition of different anions leads to increased emission intensity and/or a shift of the emission wavelength. The sensor was addressed with a collection of common salts to survey the selectivity of the emission response. Phosphate and cyanide, representing the strongest anion binding to zinc(II), were detected even in the presence of other ions in tap water. Biologically relevant phosphates such as diphosphates and adenosine-5'-triphosphate (ATP) also produced a strong response. Because the binding constants with Zn(II) are very high, anion concentrations in the range of 10(-6) to 10(-7) M are sufficient.
一种聚（乙二醇）（PEG）修饰的双（三联吡啶）锌配位聚合物在 100%水溶液中充当阴离子响应材料。根据与 Zn(II) 的结合和缔合常数，添加不同的阴离子会导致发射强度增加和/或发射波长移动。该传感器使用一系列常见盐进行了处理，以调查发射响应的选择性。即使在自来水中存在其他离子，磷酸盐和氰化物（代表与锌（II）结合最强的阴离子）也被检测到。生物相关的磷酸盐，如二磷酸盐和腺苷-5'-三磷酸（ATP），也产生了强烈的响应。由于与 Zn(II) 的结合常数非常高，因此阴离子浓度在 10(-6) 到 10(-7) M 的范围内就足够了。
