title: Rationally synthesized five-fold twinned core-shell Pt3Ni@Rh nanopentagons, nanostars and nanopaddlewheels for selective reduction of a phenyl ring of phthalimide.
abstract: Surface-energy fine-tuned five-fold twinned nanostructures with a core-shell Pt3Ni@Rh structural motif, namely, a core-shell Pt3Ni@Rh pentagon, a core-shell Pt3Ni@Rh starfish, and a paddlewheel with a Pt3Ni crankshaft and two Rh five-fold starfish wheels, are prepared by rationally designed stepwise heteroepitaxial growth. Unusual selective hydrogenation of the phenyl ring in phthalimide is accomplished with moderately active core-shell Pt3Ni@Rh pentagons and starfish-like nanoparticles. The most active paddlewheel structure proceeds to further reduce one carbonyl group, indicating the sequential nature of phthalimide reduction by Rh nanoparticle catalysis.
authors.affiliation: Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 136-701, Korea. kylee1@korea.ac.kr.
authors.forename: Nguyen Tien
authors.initials: NT
authors.lastname: Khi
authors.forename: Hionsuck
authors.initials: H
authors.lastname: Baik
authors.forename: HyunKyung
authors.initials: H
authors.lastname: Lee
authors.forename: Jisun
authors.initials: J
authors.lastname: Yoon
authors.forename: Jeong-Hun
authors.initials: JH
authors.lastname: Sohn
authors.forename: Kwangyeol
authors.initials: K
authors.lastname: Lee