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Chiral Template‐Driven Macroscopic Chirality Control: Structure‐Second‐Harmonic Generation Properties Relationship
Author(s) -
Jo Hongil,
Chen Xinglong,
Lee HeeSeung,
Ok Kang Min
Publication year - 2021
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202000964
Subject(s) - chirality (physics) , chemistry , template , second harmonic generation , chromophore , polarizability , delocalized electron , octahedron , chemical physics , crystallography , lone pair , planar chirality , metal , crystal structure , nanotechnology , stereochemistry , enantioselective synthesis , molecule , photochemistry , organic chemistry , catalysis , materials science , laser , physics , chiral symmetry breaking , quantum mechanics , nambu–jona lasinio model , optics , quark
Chirality is one of the most important topics in chemistry attributable to the peculiar stereochemical properties. Since the chirality belongs to one of the noncentrosymmetric (NCS) crystal classes, chiral materials may reveal second‐harmonic generation (SHG) properties, one of the unique structure‐related properties. The high efficiency of SHG can be achieved by the well‐controlled alignment of NCS chromophores such as d 0 transition metal cations in distorted octahedra, lone pair cations, highly polarizable d 10 cations, π‐delocalized anionic groups, etc. Chiral organic structure‐directing agents can also serve as chiral templates by aligning inorganic units in hybrid solid‐state materials. In this Minireview, recently reported ten chiral materials containing both chiral templates and SHG active unsymmetrical metal cations are introduced. The relationship between the asymmetric arrangement of the NCS chromophores achieved by the interaction with chiral templates and the resulting SHG properties are investigated, which might provide further insight for designing novel chiral materials.