教師資料查詢 | 類別: 期刊論文 | 教師: 王文竹 WANG, WEN-JWU (瀏覽個人網頁)

標題:A novel dinuclear double-stranded helical complexes of bis(terdentate) N4O2 donor ligand with silver(I) and zinc(II) d10 metal ions
學年97
學期1
出版(發表)日期2009/01/01
作品名稱A novel dinuclear double-stranded helical complexes of bis(terdentate) N4O2 donor ligand with silver(I) and zinc(II) d10 metal ions
作品名稱(其他語言)
著者Şengül, Abdurrahman; 王文竹; Wang, Wen-jwu; Coles, Simon J
單位淡江大學化學學系
出版者Elsevier
著錄名稱、卷期、頁數Polyhedron 28(1), pp.69-76
摘要Reaction of the hexadentate N4O2-donor ligand 6,6′-bis(3-hydrazonobutan-2-one)-2,2′-bipyridine (L) with Ag(I) and Zn(II) affords a dinuclear double stranded helicate species [Ag2L2]2+ (1a) and [Zn2L2]2+ (1b), in which partitioning of the ligand into two bis-tridentate pyridyl-ketoimine chelating units allow each ligand to bridge both metal centres. X-ray crystallography, ESI-MS and UV–Vis spectrophotometric titration experiments reveal that the complex (1a) retains its solid-state structure in solution. The crystal structure of (1a) provides the first example of dinuclear silver(I) complex in which both of the metal centres can be approximated as a seven coordinate distorted mono-capped trigonal prism in which the AgAg close contact of 3.034(4) Å is taken into account and forms the cap. The counter-ions do not interact with metal centres but hydrogen bond to N–H protons of the hydrazonic arms from the separate strands. The adjacent helical units are cross-linked together via NHOketo hydrogen bonding to maintain the supramolecular structure.
關鍵字Self-assembly;Supramolecular chemistry;Helical structures;Silver;Zinc;N,O-ligands
語言英文
ISSN0277-5387
期刊性質國外
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國別英國
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