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  • 02월 19일 10시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제121회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Lead(II), Mercury(II), and Heteronuclear Copper(II)/Mercury(II) Complexes of Regioisomers of Bis-O2S2-Macrocycle

2018년 2월 7일 14시 36분 18초
INOR.P-161 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
4월 19일 (목요일) 11:00~12:30
Inorganic Chemistry
저자 및
Seulgi Kim, Shim Sung Lee*
Department of Chemistry, Gyeongsang National University, Korea

In addition to our previous works on the synthesis of regioisomers (o-bis-L and m-bis-L, see below) of bis-O2S2-macrocycle and their supramolecular silver(I)1 and copper(I) iodide2 complexes, borderline (Pb2+) and soft (Hg2+ and Cu+) metal salts were employed to investigate the isomer effect on the coordination modes and topologies of the coordination products.3 In the present work, we were able to isolate the para-form (p-bis-L, see below) as a final puzzle and the three completed isomers were structurally characterized by single crystal X-ray analysis. In complexations with the isomers, lead(II) perchlorate afforded an infinite one-dimensional (1-D) coordination polymer {[Pb2(o-bis-L)(µ-ClO4)2(ClO4)2]}n (1) and a discrete complex [Pb2(m-bis-L)(CH3CN)2(H2O)2(ClO4)2](ClO4)2 (2), both of which are based on the endocyclic binuclear complexes mainly due to the oxophilicity of lead(II) ion. Meanwhile, mercury(II) halides showed an endocyclic dinuclear complex [Hg2(o-bis-L)I2][Hg3I8] (3) and an exocyclic 1-D coordination polymer [Hg3(m-bis-L)Br6]n (4) because the differences of sulfur-to-sulfur separation in the free ligand isomers might induce the different coordination modes. When a mixture of mercury(II) iodide and copper(I) iodide was used in the reaction with m-bis-L, a heterometallic 1-D coordination polymer [Cu2Hg2(m-bis-L)(μ-Cu2I2)(CH3CN)2I6]n (5, see below) was obtained. In 5, exocyclic dicopper(I) complex units are linked by -Hg-Cu2I4-Hg- segments to form an infinite zigzag chain. References [1] Siewe, A. D.; Kim, J.-Y.; Kim, S.; Park, I.-H.; Lee, S. S. Inorg. Chem. 2014, 53, 393. [2] Kim, S.; Siewe, A. D.; Lee, E.; Ju, H.; Park, I.-H.; Park, K.-M.; Ikeda, M.; Habata, Y.; Lee, S. S. Inorg. Chem. 2016, 55, 2018. [3] Kim, S.; Lee, S. S. Submitted.