Poly(3-hexylthiophene)s Functionalized with N-Heterocyclic Carbenes as Robust and Conductive Ligands for the Stabilization of Gold Nanoparticles

Sun N, Zhang ST, Simon F, Steiner AM, Schubert J, Du Y, Qiao Z, Fery A, Lissel F (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Angewandte Chemie International Edition Wiley

Book Volume: 60

Pages Range: 3912-3917

Journal Issue: 8

DOI: 10.1002/anie.202012216

Abstract

Recently, N-heterocyclic carbenes (NHCs) are explored as anchor groups to bind organic ligands to colloidal gold (i.e. gold nanoparticles, Au NPs), yet these efforts are confined to non-conjugated ligands so far—that is, focused solely on exploiting the stability aspect. Using NHCs to link Au NPs and electronically active organic components, for example, conjugated polymers (CPs), will allow capitalizing on both the stability as well as the inherent conductivity of the NHC anchors. Here, we report three types of Br-NHC-Au-X (X=Cl, Br) complexes, which, when used as starting points for Kumada polymerizations, yield regioregular poly(3-hexylthiophenes)-NHC-Au (P3HTs-NHC-Au) with narrow molecular weight distributions. The corresponding NPs are obtained via direct reduction and show excellent thermal as well as redox stability. The NHC anchors enable electron delocalization over the gold/CP interface, resulting in an improved electrochromic response behavior in comparison with P3HT-NHC-Au.

Involved external institutions

Leibniz-Institut für Polymerforschung Dresden e. V. DE Germany (DE) Jilin University (JLU) / 吉林大学 CN China (CN) Technische Universität Dresden DE Germany (DE)

How to cite

APA:

Sun, N., Zhang, S.-T., Simon, F., Steiner, A.M., Schubert, J., Du, Y.,... Lissel, F. (2021). Poly(3-hexylthiophene)s Functionalized with N-Heterocyclic Carbenes as Robust and Conductive Ligands for the Stabilization of Gold Nanoparticles. Angewandte Chemie International Edition, 60(8), 3912-3917. https://doi.org/10.1002/anie.202012216

MLA:

Sun, Ningwei, et al. "Poly(3-hexylthiophene)s Functionalized with N-Heterocyclic Carbenes as Robust and Conductive Ligands for the Stabilization of Gold Nanoparticles." Angewandte Chemie International Edition 60.8 (2021): 3912-3917.

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