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SMART Design of a Bulk‐Capped Supramolecular Segment for the Assembly into Organic Interdigital Lipid Bilayer‐Like (ILB) Nanosheets
Author(s) -
Li YinXiang,
Wang ShaSha,
Yu Yang,
Zhang He,
Wang WuYou,
Yang RuQian,
Xie LingHai,
Liu Feng,
Lin ZongQiong,
Shi NaiEn,
Sun LiTao,
Huang Wei
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201703151
Subject(s) - stacking , materials science , lamellar structure , bilayer , nanocrystal , supramolecular chemistry , molecule , nanotechnology , rational design , intermolecular force , self assembly , layer (electronics) , crystallography , chemical engineering , composite material , chemistry , membrane , organic chemistry , biochemistry , engineering
Rational molecular design for the organic nanocrystal morphology still remains a challenge due to the structural diversity and complicated weak intermolecular interactions. In this work, a typical attractor–repulsor molecule N,N ‐diphenyl‐4‐(9‐phenyl‐fluoren‐9‐yl) phenylamine (TPA‐PF) is designed to explore a general assembly strategy for 2D nanocrystals. Via an interdigital lipid bilayer‐like (ILB) molecular packing mode, large‐sized lamellar 2D nanosheets are obtained with a length:width:thickness ratio as ≈2500:1000:1. The d ‐spacing of the largest (001) plane is 1.32 nm, which equals to the thickness of a single interdigital stacking layer. The synergetic effect of the attractive supramolecular segment (TPA) and the repulsive bulky group (PF) is supposed to be the critical factor for the ILB packing that leads to the 2D structures. The attractor–repulsor molecule design is expected to be an effective strategy for the growth of 2D nanocrystals based on small organic molecules.