title: Synthesis and Assembly of Dipolar Heterostructured Tetrapods: Colloidal Polymers with "Giant tert-butyl" Groups.
abstract: We report on the first synthesis of a heterostructured semiconductor tetrapod from CdSe@CdS that carries a single dipolar nanoparticle tip from a core-shell colloid of Au@Co. A four-step colloidal total synthesis was developed, where the key step in the synthesis was the selective deposition of a single AuNP tip onto a CdSe@CdS tetrapod under UV-irradiation. Synthetic accessibility to this dipolar heterostructured tetrapod enabled the use of these as colloidal monomers to form colloidal polymers that carry the semiconductor tetrapod as a side chain group attached to the CoNP colloidal polymer main chain. The current report details a number of novel discoveries on the selective synthesis of an asymmetric heterostructured tetrapod that is capable of 1D dipolar assembly into colloidal polymers that carry tetrapods as side chain groups that mimic "giant tert-butyl groups".
authors.affiliation: Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, AZ, 85721, USA.
authors.forename: Nicholas G
authors.initials: NG
authors.lastname: Pavlopoulos
authors.affiliation: Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, AZ, 85721, USA.
authors.forename: Jeffrey T
authors.initials: JT
authors.lastname: Dubose
authors.affiliation: Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany.
authors.forename: Nicola
authors.initials: N
authors.lastname: Pinna
authors.affiliation: Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Berlin, Germany.
authors.forename: Marc-Georg
authors.initials: MG
authors.lastname: Willinger
authors.affiliation: Department of Chemical and Biological Engineering, Program for Chemical Convergence for Energy & Environment & the Center for Intelligent Hybrids, Seoul National University, Seoul, 151-744, Korea. khchar@plaza.snu.ac.kr.
authors.forename: Kookheon
authors.initials: K
authors.lastname: Char
authors.affiliation: Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, AZ, 85721, USA. jpyun@email.arizona.edu.|Department of Chemical and Biological Engineering, Program for Chemical Convergence for Energy & Environment & the Center for Intelligent Hybrids, Seoul National University, Seoul, 151-744, Korea. jpyun@email.arizona.edu.
authors.forename: Jeffrey
authors.identifier: http://orcid.org/0000-0002-1288-8989
authors.initials: J
authors.lastname: Pyun
keywords: colloidal polymers; nanoparticle assembly; tetrapods