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Synthesis and Assembly of Dipolar Heterostructured Tetrapods: Colloidal Polymers with “Giant tert-butyl” Groups

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Willinger,  Marc Georg
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Pavlopoulos, N. G., Dubose, J. T., Pinna, N., Willinger, M. G., Char, K., & Pyun, J. (2016). Synthesis and Assembly of Dipolar Heterostructured Tetrapods: Colloidal Polymers with “Giant tert-butyl” Groups. Angewandte Chemie, 128(5), 1819-1823. doi:10.1002/ange.201510458.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-6019-9
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”.