Cryst. Growth Des. 2020, 20, 1961-1968
Coordination-Driven Self-Assembly on Polymer Surface for Efficient Synthesis of [Au(SPh)]n Coordination Polymer-Based Films
Takaaki Tsuruoka,* Takashi Ohhashi, Jumpei Watanabe, Rikuto Yamada, Shoya Hirao, Yohei Takashima, Aude Demessence, Shefali Vaidya, Oleksandra Veselska, Alexandra Fateeva, and Kensuke Akamatsu*
We describe a simple bottom-up strategy to generate [Au(SPh)]n (SPh: thiophenolate) coordination polymer (CP) based thin films by employing an interfacial self-assembly on a nylon substrate. This method utilizes Au ion-doped nylon film as a precursor of [Au(SPh)]n CP, and a support substrate to control the kinetics of the reduction of Au ion from Au(III) to Au(I) and the complexation of Au(I) ions as well as SPh on the surface of the nylon film. The obtained CPs exhibit a fibril morphology with high crystallinity, which leads to a luminescent property. Further, we systematically study the formation mechanism of [Au(SPh)]n CPs on the substrates. Amorphous CPs formed at an early stage of reaction are transformed to crystalline CPs based on the re-arrangement of components during the reaction. The findings described herein offer novel and interesting openings for synthesis of Au ion-based CPs that demonstrate desired functions for a wide range of applications.