Synthesis and Assembly of Dipolar Heterostructured Tetrapods: Colloidal Polymers with "Giant tert‐butyl" Groups. Issue 5 (22nd December 2015)

• Record Type: Journal Article
• Authors: Pavlopoulos, Nicholas G.; Dubose, Jeffrey T.; Pinna, Nicola; Willinger, Marc‐Georg; Char, Kookheon; Pyun, Jeffrey
• Is Part Of: Angewandte Chemie international edition. Volume 55:Issue 5(2016)
• Page Start: 1787
• Page End: 1791
• Publication Date: 2015-12-22
• Subjects: colloidal polymers -- nanoparticle assembly -- tetrapods; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201510458
• Languages: English
• ISSNs: 1433-7851

Abstract

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". Abstract : Mimicking t Bu : A heterostructured semiconductor CdSe@CdS tetrapod that carries a single Co nanoparticle tip was synthesized. The key step in the synthesis was the selective deposition of a single AuNP tip onto the CdSe@CdS tetrapod under UV‐irradiation. Colloidal polymers that carry the semiconductor tetrapod as a side chain group attached to the CoNP colloidal polymer main chain were prepared.