Reprint of "Cobalt(II) complexes of calix[6]arenes: Crystallographic studies into heteroatom bridge influence over discrete versus polymeric structure formation"
Reprint of "Cobalt(II) complexes of calix[6]arenes: Crystallographic studies into heteroatom bridge influence over discrete versus polymeric structure formation"
复制标题
重印“杯[6]芳烃的钴(II)配合物：杂原子桥对离散结构与聚合结构形成影响的晶体学研究”
DOI：
10.1016/j.poly.2013.07.026
复制
发表时间：
2013
期刊：
影响因子：
2.6
通讯作者：
McLellan R
中科院分区：
文献类型：
--
作者：
McLellan R
亚甲基桥连杯[4]芳烃已成为形成多核簇合物的优良配体。在这方面的贡献亚甲基和氧杂桥杯[6]芳烃已被检查作为簇形成与硝酸钴（II）的候选人，提供两个显着不同的结构。结构的性质高度依赖于桥连原子。对叔丁基杯[6]芳烃与硝酸钴在DMF中反应，生成了一种配位聚合物，其中杯[6]芳烃呈双偏锥构象。与对叔丁基四高二氧杂杯[6]芳烃的类似反应提供了离散的络合物，其中中心杂原子也与金属中心配位，杯芳烃呈“双锥”构象。介绍了这两种化合物的合成和结构。
Methylene-bridged calix[4]arenes have emerged as excellent ligands for polynuclear cluster formation. In this contribution methylene- and oxa-bridged calix[6]arenes have been examined as candidates for cluster formation with cobalt(II) nitrate, affording two markedly different structures. The nature of the structures is highly dependent on the bridging atoms. Reaction ofp-tert-butylcalix[6]arene with cobalt(II) nitrate in DMF results in the formation of a coordination polymer in which the calixarene adopts a ‘double-partial’ cone conformation. A similar reaction withp-tert-butyltetrahomodioxacalix[6]arene affords a discrete complex in which a central heteroatom also coordinates to the metal centre, with the calixarene in a ‘double-cone’ conformation. The synthesis and structure of both compounds is presented.