Peterson Sonja M, Helm Monte L, Appel Aaron M
Pacific Northwest National Laboratory, P.O. Box 999, MS K2-57, Richland, WA 99352, USA.
Dalton Trans. 2015 Jan 14;44(2):747-52. doi: 10.1039/c4dt02718c. Epub 2014 Nov 12.
A binucleating ligand has been prepared that contains an SCS pincer and three oxygen donor atoms in a partial crown ether loop. To enable metalation with Ni(0), a bromoarene precursor was used and resulted in the formation of a nickel-bromide complex in the SCS pincer portion of the ligand. Reaction of the nickel complex with a lithium salt yielded a heterobimetallic complex with bromide bridging the two metal centers. The solid-state structures were determined for this heterobimetallic complex and the nickel-bromide precursor, and the two complexes were characterized electrochemically to determine the influence of coordinating the second metal.
已制备出一种双核配体，其在部分冠醚环中含有一个SCS钳形结构和三个氧供体原子。为了实现与Ni(0)的金属化，使用了溴代芳烃前体，结果在配体的SCS钳形部分形成了镍 - 溴配合物。镍配合物与锂盐反应生成了一种异双金属配合物，其中溴桥连两个金属中心。测定了该异双金属配合物和镍 - 溴前体的固态结构，并对这两种配合物进行了电化学表征，以确定配位第二种金属的影响。
