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Correspondence on “K 2 Sb(P 2 O 7 )F: Cairo Pentagonal Layer with Bifunctional Genes Reveal Optical Performance”
Author(s) -
Krivovichev Sergey V.,
Bindi Luca
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.202012364
Subject(s) - crystal twinning , crystallography , bifunctional , type (biology) , topology (electrical circuits) , layer (electronics) , crystal structure , materials science , chemistry , nanotechnology , mathematics , combinatorics , microstructure , ecology , biochemistry , biology , catalysis
Compounds with the fresnoite structure type possess remarkable chemical diversity and a range of unique physical properties, including nonlinear optical (NLO) activity. K 2 Sb(P 2 O 7 )F, which was reported recently, belongs to this group and its structure is not novel in terms of either the topology or local coordination geometry around the Sb 3+ cations. The crystallographic disorder observed in the fresnoite‐type structures can be explained by twinning, which is frequent for non‐centrosymmetric crystals.