title: Isolation of Blackberry-Shaped Nanoparticles of a Giant {Mo72Fe30} Cluster and Their Transformation to a Crystalline Nanoferric Molybdate.
abstract: When an aqueous solution of sodium molybdate is added to an aqueous solution of ferric chloride, acidified with acetic acid, a giant {Mo72Fe30} cluster is instantaneously formed as the amorphous substance Na2[Mo72Fe30O252(CH3COO)4(OH)16(H2O)108]·180 H2O (1). Compound 1 consists of aggregated nanovesicles of {Mo72Fe30} clusters, as confirmed by field-emission scanning electron microscopy and transmission electron microscopy images of 1. An aqueous suspension of 1 upon moderate heating results in the formation of crystalline nanoferric molybdate, which gives insight into understanding the formation of a yellow coating mineral, ferrimolybdite, frequently found on the ores of molybdenum.
authors.affiliation: School of Chemistry, University of Hyderabad , P.O. Central University, Hyderabad 500046, India.|School of Physical Sciences, Jawaharlal Nehru University , New Mehrauli Road, New Delhi 110067, India.
authors.forename: Raju
authors.initials: R
authors.lastname: Mekala
authors.affiliation: School of Physical Sciences, Jawaharlal Nehru University , New Mehrauli Road, New Delhi 110067, India.
authors.forename: Sabbani
authors.initials: S
authors.lastname: Supriya
authors.affiliation: School of Chemistry, University of Hyderabad , P.O. Central University, Hyderabad 500046, India.
authors.forename: Samar K
authors.identifier: http://orcid.org/0000-0002-9536-6579
authors.initials: SK
authors.lastname: Das