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Anion-Dependent Exocyclic Mercury(II) Coordination Polymers of Bis-dithiamacrocycle
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  • Anion-Dependent Exocyclic Mercury(II) Coordination Polymers of Bis-dithiamacrocycle
  • Anion-Dependent Exocyclic Mercury(II) Coordination Polymers of Bis-dithiamacrocycle
저자명
Siewe. Arlette Deukam,Kim. Seulgi,Choi. Kyu Seong,Lee. Shim Sung
간행물명
Bulletin of the Korean Chemical Society
권/호정보
2014년|35권 12호|pp.3459-3464 (6 pages)
발행정보
대한화학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Synthesis and structural characterization of mercury(II) halides and perchlorate complexes (1-4) of bis-$OS_2$-macrocycle (L) are reported. L reacts with mercury(II) chloride and bromide to yield an isostructural 2D coordination polymers with type $[Hg(L)X_2]_n$ (1: X = Cl and 2: X = Br). In 1, each Hg atom which lies outside the cavity is six-coordinate with a distorted octahedral geometry, being bound to four adjacent ligands via monodentate Hg-S bonds and two remaining sites are occupied by two terminal chlorido ligands to form a fishnet-like 2D structure. When reacting with mercury(II) iodide, L afforded a 1D coordination polymer ${[Hg_2(L)I_4]{cdot}CHCl_3}_n$ (3) in which each exocyclic Hg atom is four-coordinate, being bound to two sulfur donors from different ligands doubly bridging the ligand molecules in a head-to-tail mode. The coordination sphere in 3 is completed by two iodo terminal ligands, adopting a distorted tetrahedral geometry. On reacting with mercury(II) perchlorate, L forms solvent-coordinated 1D coordination polymer ${[Hg_2(L)(DMF)_6](ClO_4)_4{cdot}2DMF}_n$ (4) instead of the anion-coordination. In 4, the Hg atom is five-coordinate, being bound to two sulfur donors from two different ligands doubly bridging the ligand molecules in a side-by-side mode to form a ribbon-like 1D structure. The three remaining coordination sites in 4 are completed by three DMF molecules in a monodentate manner. Consequently, the different structures and connectivity patterns for the observed exocyclic coordination polymers depending on the anions used are influenced not only by the coordination ability of the anions but also by anion sizes.