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Tuning the Intercage Distance in Charge‐Regulated Blackberry‐Type Assemblies through Host–Guest Chemistry
Author(s) -
Li Hui,
Wang Ruifu,
Hong Youlee,
Liang Zihao,
Shen Yidan,
Nishiyama Yusuke,
Miyoshi Toshikazu,
Liu Tianbo
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201900800
Subject(s) - cationic polymerization , adamantane , chemistry , self assembly , host–guest chemistry , cage , triazine , crystallography , charge (physics) , nanotechnology , chemical physics , stereochemistry , materials science , polymer chemistry , organic chemistry , supramolecular chemistry , physics , crystal structure , mathematics , combinatorics , quantum mechanics
Charged or neutral adamantane guests can be encapsulated into the cavity of cationic metal–organic M 6 L 4 (bpy‐cage, M=Pd II (2,2′‐bipyridine), L=2,4,6‐tri(4‐pyridyl)‐1,3,5‐triazine) cages through hydrophobic interaction. These encapsulations can provide an approach to control the net charge on the resulting cage–guest complexes and regulate their charge‐dominated assembly into hollow spherical blackberry‐type assemblies in dilute solutions: encapsulation of neutral guests will hardly influence their self‐assembly process, including the blackberry structure size, which is directly related to the intercage distance in the assembly; whereas encapsulating negatively (positively) charged guests resulted in a shorter (longer) intercage distance with larger (smaller) assemblies formed. Therefore, the host–guest chemistry approach can be used to tune the intercage distance accurately.