Kinetically controlled assembly of a spirocyclic aromatic hydrocarbon into polyhedral micro/nanocrystals

ACS Nano
Zong-Qiong LinWei Huang

Abstract

Nonplane molecules with multiple large aromatic planes could be promising candidates to form various polyhedral micro/nanocrystals by manipulating the different π···π stacking, tuning the cohesive energies of crystal facets, and controlling the kinetic growth process. Spirocyclic aromatic hydrocarbons (SAHs) not only have two cross-shaped aromatic planes but also offer the feature of supramolecular steric hindrance, making it favorable for the heterogeneous kinetic growth into highly symmetric polyhedra. Herein, we report that a novel SAH compound, spiro[fluorene-9,7'-dibenzo[c,h]acridine]-5'-one (SFDBAO), can self-assemble into various monodispersed shapes such as hexahedra, octahedra, and decahedra through the variation of either different types of surfactants, such as Pluronic 123 (P123) and cetyltrimethyl ammonium bromide (CTAB), or growth parameters. In addition, the possible mechanism of crystal facet growth has been proposed according to the SEM, XRD, TEM, and SAED characterization of organic polyhedral micro/nanocrystals. The unique cruciform-shaped SAHs have been demonstrated as fascinating supramolecular synthons for various highly symmetric polyhedral assembling.

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Citations

Sep 4, 2013·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Ling-Hai XieWei Huang
Dec 20, 2014·Advanced Materials·Yanbing GuoYuliang Li
Jan 17, 2016·Journal of Photochemistry and Photobiology. B, Biology·Debasish DasAjay Misra
Jan 1, 2016·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Samir MaityAjay Misra
Jan 31, 2015·Journal of the American Chemical Society·Sung Hyun YooHee-Seung Lee
Jan 31, 2013·Chemistry, an Asian Journal·Jianfeng ZhaoQichun Zhang
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Feb 19, 2019·Chemical Communications : Chem Comm·Fei TongChristopher J Bardeen
Oct 2, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Wenkun HanWenjing Tian
May 4, 2016·Polymers·Sabine FrühbeißerFranziska Gröhn

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