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Oriented Two‐Dimensional Porous Organic Cage Crystals
Author(s) -
Jiang Shan,
Song Qilei,
Massey Alan,
Chong Samantha Y.,
Chen Linjiang,
Sun Shijing,
Hasell Tom,
Raval Rasmita,
Sivaniah Easan,
Cheetham Anthony K.,
Cooper Andrew I.
Publication year - 2017
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.201704579
Subject(s) - cage , materials science , crystallinity , wafer , porosity , membrane , imine , tetrahedron , porous medium , crystallography , crystal growth , crystal (programming language) , chemical engineering , molecule , nanotechnology , composite material , chemistry , organic chemistry , engineering , combinatorics , biochemistry , mathematics , computer science , programming language , catalysis
The formation of two‐dimensional (2D) oriented porous organic cage crystals (consisting of imine‐based tetrahedral molecules) on various substrates (such as silicon wafers and glass) by solution‐processing is reported. Insight into the crystallinity, preferred orientation, and cage crystal growth was obtained by experimental and computational techniques. For the first time, structural defects in porous molecular materials were observed directly and the defect concentration could be correlated with crystal growth rate. These oriented crystals suggest potential for future applications, such as solution‐processable molecular crystalline 2D membranes for molecular separations.