title: Synthesis and structural characterization of binuclear half-sandwich iridium, rhodium and ruthenium complexes containing 4,4'-dipyridyldisulfide (4DPDS) ligands.
abstract: Reactions of half-sandwich iridium and rhodium complexes [Cp*MCl2]2 (1a: M = Ir, 1b: M = Rh) and the half-sandwich ruthenium complex [(p-cymene)RuCl2]2 (1c) with 4DPDS gave the corresponding binuclear complexes [{Cp*MCl2]2}(m-4DPDS) (2a: M = Ir, 2b: M = Rh) and [{(p-cymene)RuCl2]2}(m-4DPDS) (2c), which can be converted into binuclear metallamacrocycles. The metallamacrocycles [Cp*M(m-4DPDS)Cl]2(2+) (3a: M = Ir, 3b: M = Rh) and [(p-cymene)Ru(m-4DPDS)Cl]2(2+) (3c) are composed of two half-sandwich units and two 4DPDS ligands with the same chirality. The macrocycle 3c is chiral and changes its shape slightly depending on the guests accommodated above and below the cavities.
authors.affiliation: Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Department of Chemistry, Fudan University, Shanghai, 200433, PR China.
authors.forename: Ying-Feng
authors.initials: YF
authors.lastname: Han
authors.forename: Hao
authors.initials: H
authors.lastname: Li
authors.forename: Yue
authors.initials: Y
authors.lastname: Fei
authors.forename: Yue-Jian
authors.initials: YJ
authors.lastname: Lin
authors.forename: Wan-Zheng
authors.initials: WZ
authors.lastname: Zhang
authors.forename: Guo-Xin
authors.initials: GX
authors.lastname: Jin
mesh_terms: D018360:Crystallography, X-Ray; D004220:Disulfides / Q000737:chemistry*; D007495:Iridium / Q000737:chemistry*; D008024:Ligands; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D012238:Rhodium / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*
chemical_list: D004220:Disulfides; D008024:Ligands; D009942:Organometallic Compounds; D011725:Pyridines; C007542:4,4'-dipyridyl disulfide; D007495:Iridium; D012428:Ruthenium; D012238:Rhodium