title: Mono- and Bis-Terpyridine-Based Dimer and Metallo-Organic Polymers as Ionic Templates for Preparation of Multi-Metallic Au Nanocluster and Nanowires.
abstract: The preparation of multi-metallic Au nanocluster and nanowires has been achieved using terpyridine-based metallo-organic polymers as multi-ionic templates through a straightforward counterion exchange with aqueous NaAuCl4 followed by a mild reduction in-situ with sodium citrate. The mild reduction of the [TpyFeTpy]2+ x 2[AuCl4]- complex, derived from [TpyFeTpy]2+ x 2Cl- 1 (tpy = 2,2':6',2"-terpyridine), led to the formation of Au nanoclusters (Au NC) with diameters ranging from 7.5-88 nm. Each Au NC alone contained multiple nanoparticles, with diameters ranging from 2.5-4.5 nm. 1,4-bis-terpyridine based metallo-oraganic polymer [-TpyFeTpy-TpyFeTpy-]n(2n+) x [Cl]2n- 2 was found to generate a multi-ionic metallo-polymer with AuCl4- as the counterion, after mild reduction with sodium citrate, resulting in irregular zigzag shaped Au nanowires (Au NW). The prepared Au NW from the di-metallic complex 3 should find applications within electronic devices. Both Au NC and NW were also found to possess excellent catalytic properties.
authors.forename: Die
authors.initials: D
authors.lastname: Liu
authors.forename: Hongda
authors.initials: H
authors.lastname: Cao
authors.forename: Zhilong
authors.initials: Z
authors.lastname: Jiang
authors.forename: Tun
authors.initials: T
authors.lastname: Wu
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Sun
authors.forename: Pingshan
authors.initials: P
authors.lastname: Wang
authors.forename: Charles N
authors.initials: CN
authors.lastname: Moorefield
authors.forename: Liming
authors.initials: L
authors.lastname: Dai
authors.forename: George R
authors.initials: GR
authors.lastname: Newkome
mesh_terms: D002384:Catalysis; D019281:Dimerization; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures; D009942:Organometallic Compounds / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D009942:Organometallic Compounds; D011108:Polymers; D011725:Pyridines; D012834:Silver; C023666:pyridine