A Synthetic Iron Phosphate Mineral, Spheniscidite, [nh4](+)[fe- 2(oh)(h2o)(po4)(2)]-h2o, Exhibiting Reversible Dehydration

Content Provider	Indian Institute of Science (IISc)
Author	Choudhury, Amitava Natarajan, Srinivasan
Copyright Year	1999
Abstract	Spheniscidite, a synthetic iron phosphate mineral has been synthesized by hydrothermal methods. The material is isotypic with another iron phosphate mineral, leucophosphite. Spheniscidite crystallizes in the monoclinic spacegroup P2(1) n. (a = 9.845(1), b = 9.771(3), c = 9.897(1), beta = 102.9 degrees, V = 928.5(1), Z = 4, M = 372.2, d(calc) = 2.02 g cm(-3) and R = 0.02). The structure consists of a network of FeO6, octahedra vertex-linked with PO4 tetrahedra forming 8- membered one-dimensional channels in which the NH4+ ions and H2O molecules are located. The material exhibits reversible dehydration and good adsorption behaviour. Magnetic susceptibility measurements indicate that the solid orders antiferromagnetically.
File Format	PDF
Journal	PeerReviewed
Language	English
Publisher	Indian Academy of Sciences
Publisher Date	1999-10-01
Access Restriction	Authorized
Subject Keyword	Solid State & Structural Chemistry Unit
Content Type	Text
Resource Type	Article