A Mild Synthetic Route to Zinc, Cadmium, and Silver Polymers with (2‐Pyridyl)phosphonic Acid: Synthesis and Analysis
作者:Julie A. Fry、Christian R. Samanamu、Jean‐Luc Montchamp、Anne F. Richards
DOI:10.1002/ejic.200701007
日期:2008.1
one-dimensional polymers [Cd(μ-Cl)2(2pypo)]n (3) and [Hg(2pypo)]n (4) were isolated in moderate yield. The one-dimensional structure of 3 is supported through bridging chlorides and two η2-phosphonate oxygen atoms, while 4 is a highly symmetrical polymer that exhibits pyridyl nitrogen coordination to the mercury center and uses two μ2-oxygen atoms to polymerize. Reaction of silver triflate (CF3SO3Ag)
五种新的金属吡啶基膦酸酯聚合物已被制备、充分表征,并探测了它们的室温发光。(2-吡啶基)膦酸 (2pypo) 与 ZnX2 (X = Br, Cl) 反应得到二维聚合物 [Zn(X)(2pypo)]n X = Cl = (1), X = Br = (2)},具有环状 12 元 Zn-O-P 核,这些核通过来自膦酸酯部分的桥接氧原子相互连接。从室温、2pypo 和相应金属盐的水溶液反应中,分离出一维聚合物 [Cd(μ-Cl)2(2pypo)]n (3) 和 [Hg(2pypo)]n (4)产量适中。3 的一维结构通过桥连氯化物和两个 η2-膦酸酯氧原子支撑,而 4 是高度对称的聚合物,表现出与汞中心的吡啶基氮配位,并使用两个 μ2-氧原子进行聚合。三氟甲磺酸银 (CF3SO3Ag) 与 2pypo 的反应提供了一种结晶银聚合物,它显示出具有亲银相互作用的银原子的锯齿形排列,并且通过桥接的三氟甲磺酸酯和膦酸酯部分稳定。(©