Hg(II) and Cd(II) complexes with mixed donor macrocyclic thioethers: The oxophobicity of mercury(II)
作者:Gregory J. Grant、Maikel E. Botros、Jared S. Hassler、Daron E. Janzen、Craig A. Grapperhaus、Martin G. O’Toole、Donald G. VanDerveer
DOI:10.1016/j.poly.2008.07.005
日期:2008.9
shows octahedral coordination in a trans N4S2 environment. Furthermore, two new homoleptic Cd(II) complexes with the related hexadentate macrocycles 18N6 (1,4,7,10,13,16-hexaazacyclooctadecane) and 18S6 (1,4,7,10,13,16-hexathiayclooctadecane) are described. Among the Cd(II) complexes, we highlight a trend in 113Cd NMR that shows progressive upfield chemical shifts as secondary amine donors replace thioether
摘要报道了一系列具有混合的供体(O,S和N,S)大环的Hg(II)和Cd(II)同型络合物。大环氧杂硫杂皇冠(9S2O(1-oxa-4,7-dithiacyclononane)和18S4O2(1,10-dioxa-4,7,13,16-tetrathiacyclooctadecane)与Hg(II)结合形成扭曲的四面体S4几何构型氧原子。相反,两个大环通过所有配体供体与Cd(II)协调形成S4O2环境。我们还报告了bis(9N2S(1,4-diaza-7-thiacyclononane))镉(II)[Cd(9N2S)2] 2+的结构,该结构在反N4S2环境中显示八面体配位。此外,还描述了两个新的均质Cd(II)配合物以及相关的六齿大环18N6(1,4,7,10,13,16-六氮杂环十八烷)和18S6(1,4,7,10,13,16-六硫代氯辛烷) 。在Cd(II)络合物中,