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Open-Framework Iron Fluoride Phosphates Based on Chain, Trinuclear, and Tetranuclear Chain FeIIIBuilding Units: Crystal Structures and Magnetic Properties

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Title
Open-Framework Iron Fluoride Phosphates Based on Chain, Trinuclear, and Tetranuclear Chain FeIIIBuilding Units: Crystal Structures and Magnetic Properties
Author(s)
Jin, Yong; Suheon Lee; Zhu, Tianyu; Zhang, Xinan; Yang, Haoming; Chen, Dan; Zhu, Wenxuan; Choi, Kwang-Yong; Lü, Mingjeng
Publication Date
2022-06
Journal
Inorganic Chemistry, v.61, no.24, pp.9257 - 9268
Publisher
American Chemical Society
Abstract
Copyright © 2022 American Chemical Society. We report the synthesis and characterization of a series of new open-framework iron fluoride-fluorophosphates based on linear, trinuclear, and tetranuclear chain FeIII building units. KFe2(PO3F)2F3 (I) consists of {Fe2(O3F)2F2}10- zigzag chains interconnected by P(O/F)4 tetrahedra forming a three-dimensional (3D) open framework. K2Fe(PO2.5F1.5)2F2 (II) is built up by {Fe(PO2.5F1.5)2F2}2- chains separated by K+ cation layers. The framework for K3Fe3(PO4)(PO3F)2F5 (III) contains two-dimensional {Fe3O4F4(PO3F)2}2- sheets, which are built from trimeric Fe-octahedra insulated by PO3F tetrahedra. The macroanionic framework of K3Fe4(PO4)2F9 (IV) comprises linear {Fe4O8F9}10- chains consisting of tetranuclear magnetic clusters of [Fe4O8F9]10- formed via corner-sharing fluorine atoms decorated with PO4 groups. The magnetic characterization of three iron fluorophosphates reveals diversified magnetism: S = 5/2 spin chains for I, antiferromagnetically coupled triangular Fe units for III, and coupled tetrahedral S = 5/2 spin chains for IV. IV shows strong geometric frustration thanks to its spin motifs of corner-shared tetrahedral clusters. © 2022 American Chemical Society.
URI
https://pr.ibs.re.kr/handle/8788114/12021
DOI
10.1021/acs.inorgchem.2c00997
ISSN
0020-1669
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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