RT Journal Article
T1 A Chemical Pressure-Induced Phase Transition Controlled by Lone Electron Pair Activity
A1 Gomes, Eduardo
A1 Gouveia, Amanda
A1 Gracia, Lourdes
A1 Lobato Fernández, Álvaro
A1 Recio, J. Manuel
A1 Andrés, Juan
AB The chemical pressure approach offers a new paradigm for property control in functional materials. In this work, we disclose a correlation between the β → α pressureinduced phase transition in SnMoO4 and the substitution process of Mo6+ by W6+ in SnMo1−xWxO4 solid solutions (x = 0-1). Special attention is paid to discriminating the role of the lone pair Sn2+ cation from the structural distortive effect along the Mo/W substitution process, which is crucial to disentangle the driven force of the transition phase. Furthermore, the reverse α → β transition observed at high temperature in SnWO4 is rationalized on the same basis as a negative pressure effect associated with a decreasing of W6+ percentage in the solid solution. This work opens a versatile chemical approach in which the types of interactions along the formation of solid solutions are clearly differentiated and can also be used to tune their properties, providing opportunities for the development of new materials.
PB ACS Publications
SN 1948-7185
YR 2022
FD 2022
LK https://hdl.handle.net/20.500.14352/72553
UL https://hdl.handle.net/20.500.14352/72553
LA eng
NO CRUE-CSIC (Acuerdos Transformativos 2022)
NO Ministerio de Ciencia e Innovación (MICINN)
NO Principado de Asturias/FEDER
NO Generalitat Valenciana
NO Universitat Jaume I
DS Docta Complutense
RD 7 abr 2025