Topochemical intercalation reactions of ZrSe3

被引：4
作者：
Elgaml, Mahmoud [1 ]
Cassidy, Simon J. [1 ]
Clarke, Simon J. [1 ]
机构：
[1] Univ Oxford, Dept Chem, Inorgan Chem Lab, South Parks Rd, Oxford OX1 3QR, England
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2022年 / 314卷
基金：
英国工程与自然科学研究理事会;
关键词：
Intercalation; Transition metal trichalcogenides; Zirconium triselenide; Stacking faults; CRYSTAL-STRUCTURE; TIS3; TRANSITION; LAYER; MAGNETORESISTANCE; DIFFRACTION; HFS3; ZR;
D O I：
10.1016/j.jssc.2022.123436
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Intercalation of alkali and alkaline earth metals into ZrSe3 via soft chemical routes injects electrons and has a significant effect on the selenide-selenide bonding. K, Rb and Cs intercalates of ZrSe3 prepared at low temperatures (-78 degrees C) from metal ammonia solutions contrast with related polymorphs obtained at high temperature (850 degrees C). KxZrSe3 synthesised at low temperatures crystallises in orthorhombic Cmc21, while the polymorph obtained at high temperatures crystallises in Immm. The two structures prepared under drastically different conditions differ by relative shifting of ZrSe3 layers. In contrast, CsxZrSe3 shows the Immm polymorph at low temperature and the Cmc2(1) polymorph at high temperatures, while a single RbxZrSe(3) polymorph in Immm is formed at both temperatures. Intercalation of Ca from liquid ammonia facilitates the co-intercalation of the solvent because of the strong solvation of Ca2+. This compound has severe faulting due to the flexibility in the relative shifts of adjacent ZrSe3 layers.
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页数：9
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