Understanding the Mechanism of Amorphization for Co‐URJC‐5. Issue 43 (28th October 2021)

• Record Type: Journal Article
• Authors: López‐Olvera, Alfredo; Montes‐Andrés, Helena; Martínez‐Ahumada, Eva; López‐Cervantes, Valeria B.; Martínez‐Serrano, Ricardo D.; González‐Zamora, Eduardo; Martínez, Ana; Leo, Pedro; Martos, Carmen; Ibarra, Ilich A.; Orcajo, Gisela
• Is Part Of: European journal of inorganic chemistry. Issue 43(2021)
• Page Start: 4458
• Page End: 4462
• Publication Date: 2021-10-28
• Subjects: Amorphous phases -- Coordination geometry -- FT-IR -- MOFs -- Sulfur; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.202100664
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: Irreversible transition from monocrystalline to amorphous phase accompanied by a change in coordination geometry (octahedral to tetrahedral) was first observed in a Co(II)‐based MOF material, named Co‐URJC‐5, via SO2 uptake. This structural change is associated with the total loss of the pyridine ligand from the axial positions. These results are corroborated using PXRD and FT‐IR spectroscopy. A plausible amorphization mechanism is proposed using crystal field theory. Abstract : Irreversible single crystal‐to‐amorphous‐phase transition accompanied by a coordination geometry change (octahedral to tetrahedral) was first observed in a Co(II)‐based MOF material, namely as Co‐URJC‐5 via SO2 uptake.