The Synthesis of Dimeric Re
<sup>I</sup>
–Phenylenediimine Conjugates: Spectroscopic and Electrochemical Studies
作者:Abed Hasheminasab、James T. Engle、Jacob Bass、Richard S. Herrick、Christopher J. Ziegler
DOI:10.1002/ejic.201400076
日期:2014.6
complexes. An example of each complex was structurally elucidated by single-crystal X-ray methods. The dimeric m- and p-phenylene-bridged Re(CO)3X compounds, including a sulfonate derivative designed to improve solubility, were investigated for possible photophysical applications through the use of UV/Vis spectroscopy and cyclic voltammetry; the study revealed coupling between the rhenium centers.
通过[Re(CO)5X](X = Cl, Br)、吡啶-2-甲醛和邻-、间-、或对苯二胺。对于间位和对位取代的苯二胺反应,式[Re(CO)3X]2(μ-PPC)[3-7; X = 氯,溴;μ-PPC = 间或对亚苯基双(吡啶-2-碳化二亚胺)],其中间苯二胺形成异构体混合物。对于与邻苯二胺的反应,形成了多种产物(化合物 8-11),其范围从所需的邻苯二(吡啶-2-碳二亚胺)加合物到 2-吡啶基苯并咪唑和桥连二吡啶基喹喔啉配合物。通过单晶 X 射线方法在结构上阐明了每个复合物的一个例子。二聚间和对亚苯基桥连的 Re(CO)3X 化合物,包括旨在提高溶解度的磺酸盐衍生物,通过使用紫外/可见光谱和循环伏安法研究了可能的光物理应用;该研究揭示了铼中心之间的耦合。