Jump to main content
Jump to site search


A general route to chiral nanostructures from helical polymers: P/M switch via dynamic metal coordination

Abstract

A general method for the conversion of a polyphenylacetylene into its P or M helically oriented polymer, and into their corresponding P/M helical nanoparticles via dynamic metal coordination is presented. Addition of Mn+ ions ( e.g., Ca2+, Zn2+, Ag+, among others) to poly(phenylacetylene)s (poly-2 to poly-6), bearing OMe protected amino acids, produce complex I (chelation of the two carbonyl groups; sp conformation) associated to a helix inversion of the polymer. Ulterior addition of a small amount of MeOH, transforms complex I into complex II (metal ion coordinated only to the ester group; ap conformation), where a second helix inversion is produced. This dynamic coordination proccess between complex I and complex II works also at the nanoscale level, and therefore chiral nanoparticles with either P or M helices can be generated or transformed into each other by controlling the polymer/metal/methanol ratio in the helical polymer metal complex (HPMC).

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 03 Apr 2017, accepted on 12 May 2017 and first published on 19 May 2017


Article type: Paper
DOI: 10.1039/C7PY00561J
Citation: Polym. Chem., 2017, Accepted Manuscript
  •   Request permissions

    A general route to chiral nanostructures from helical polymers: P/M switch via dynamic metal coordination

    R. Riguera, F. Freire, S. Arias, M. Núñez-Martínez and E. Quiñoá, Polym. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7PY00561J

Search articles by author