A new layered potassium-based molybdenum–tungsten monophosphate: synthesis, crystal structure, XPS and magnetic studies-Reference-Cited by-同舟云学术

A new layered potassium-based molybdenum–tungsten monophosphate: synthesis, crystal structure, XPS and magnetic studies

Published:2023-09-01 Issue:9-10 Volume:238 Page:333-342
ISSN:2194-4946
Container-title:Zeitschrift für Kristallographie - Crystalline Materials
language:en
Short-container-title:

Author:

Goudjil Meriem¹²^ORCID,Lepore Giovanni Orazio¹,Bonazzi Paola¹,Mezaoui Djillali²,Mezzi Alessio³,Bolli Eleonora³,Di Benedetto Francesco⁴,Bindi Luca¹

Affiliation:

1. Dipartimento di Scienze della Terra , Università degli Studi di Firenze , Via La Pira 4 , Firenze I-50121 , Italy

2. Laboratoire des Sciences des Matériaux, Faculté de Chimie , Université des Sciences et de la Technologie Houari Boumediene , Bab Ezzouar , Alger 16111 , Algeria

3. Consiglio Nazionale delle Ricerche-Istituto per lo Studio di Materiali Nanostrutturati, CNR-ISMN , Via Salaria km 29.3, 00015 Monterotondo Stazione , Rome , Italy

4. Dipartimento di Fisica e Scienze della Terra , Università degli Studi di Ferrara , Via Giuseppe Saragat 1 , Ferrara 44124 , Italy

Abstract

Abstract A new compound, K5[(Mo3.2W1.8)O11](PO4)3[(P0.5Mo0.5)O4], was synthesized via solid-state reaction and its crystal structure was determined by single-crystal X-ray diffraction. This compound crystallizes in the space group Pnma, with a = 9.0360(4) Å, b = 10.1603(4) Å, c = 26.1538(12) Å and V = 2401.14(18) Å3. The structure consists of a corner-sharing MO6–TO4 (M = Mo, W; T = P, Mo) polyhedral connection arranged to form an ordered packing of ∼14.9 Å-thick layers parallel to (001). The stacking of the layers forms trigonal, tetragonal and hexagonal channels. XPS study reveals the presence of W at the hexavalent state only, whereas Mo appears as a mixed-valent species (Mo6+, Mo5+ and Mo4+). Magnetic susceptibility reveals the occurrence of a relevant antiferromagnetic coupling and is consistent with the presence of reduced metal species as indicated by the XPS results.

Funder

Italian Ministry for Education, University and Research

Publisher

Walter de Gruyter GmbH

Subject

Inorganic Chemistry,Condensed Matter Physics,General Materials Science

Link

https://www.degruyter.com/document/doi/10.1515/zkri-2023-0027/pdf

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