Premium
Combining a Titanium–Organic Cage and a Hydrogen‐Bonded Organic Cage for Highly Effective Third‐Order Nonlinear Optics
Author(s) -
He YanPing,
Chen GuangHui,
Li DeJing,
Li QiaoHong,
Zhang Lei,
Zhang Jian
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202013977
Subject(s) - cage , enantiopure drug , supramolecular chemistry , crystal (programming language) , titanium , hydrogen bond , single crystal , materials science , amine gas treating , crystallography , chemistry , molecule , crystal structure , organic chemistry , enantioselective synthesis , catalysis , mathematics , combinatorics , computer science , programming language
Many metal–organic cages (MOCs) and a few hydrogen‐bonded organic cages (HOCs) have been investigated, but little is reported about cooperative self‐assembly of MOCs and HOCs. Herein, we describe an unprecedented MOC&HOC co‐crystal composed of tetrahedral Ti 4 L 6 (L=embonate) cages and in‐situ‐generated [(NH 3 ) 4 (TIPA) 4 ] (TIPA=tris(4‐(1 H ‐1,2,4‐triazol‐1‐yl)phenyl)amine) cages. Chiral transfer is observed from the enantiopure Ti 4 L 6 cage to enantiopure [(NH 3 ) 4 (TIPA) 4 ] cage. Two homochiral supramolecular frameworks with opposite handedness ( PTC‐235(Δ) and PTC‐235(Λ) ) are formed. Such MOC&HOC co‐crystal features high stability in water and other solvents, affording single‐crystal‐to‐single‐crystal transformation to trap CH 3 CN molecules and identify disordered NH 4 + cations. A tablet pressing method is developed to test the third‐order nonlinear optical property of KBr‐based PTC‐235 thin film. Such a thin film exhibits an excellent optical limiting effect.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom