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

제121회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis and Characterization of Functional Cobalt Supramolecular Triple-Stranded Helicates and Their Controllable Higher-Order Assemblies

2018년 2월 12일 23시 10분 14초
INOR.P-201 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
4월 19일 (목요일) 11:00~12:30
Inorganic Chemistry
저자 및
Hyojong Yoo*, Inme Lee, Van Cam Thi Le1, Duy Hien Mai
Department of Chemistry, Hallym University, Korea
1Chemistry, Hallym University, Korea
Recently, the coordination-driven assembly of well-defined and rigid tetranuclear cobalt clusters, composed of four cobalts and three 2,6-pyridinedicarboxylate (PDA) ligands, through three "strand' isophthalate (PTA) ligands to form a novel metallosupramolecular structure with fascinating triple-stranded helical geometries (TSH) has been first reported by our group. More importantly, TSHs can be considered efficient conceptual supramolecular modules for building higher-order molecular assemblies through the coordination with Co2+ cations induced by the availability of unsaturated oxygens residing on cobalt clusters. Herein, we report the rational design of a variety of functional TSHs through the use of different PTA substitutes, Co8(PDA)6(X-PTA)3(DMF)m(H2O)6-m (X, the functional groups at the 3-position on the benzene ring of substituted PTA ligand = ─C(CH3)3, ─H, ─OCH3, ─NH2, ─OH, ─COOH, and ─Br). The TSHs’ capability of assembling with Co2+ in given reaction conditions to form higher-order structures will be also investigated. In addition, we expect that the rational design of functional groups at given specific sites at molecular level can provide access to unique chemical and physical properties of the resultant metallosupramolecules.