(C₄N₂H₁₂)[Fe^II_0.86Fe^III_1.14(HPO₃)_1.39(HPO₄)_0.47(PO₄)_0.14F₃]: A Fluoro–Phosphite–Hydrogenphosphate–Phosphate Iron(II,III) Mixed‐Valence Organically Templated Compound

Abstract

Site insights: The title compound has been synthesized by mild hydrothermal conditions. The iron(II) and iron(III) cations are trapped in two different crystallographic positions, whereas the phosphite and hydrogenphosphate–phosphate oxoanions are disordered in two phosphorus sites (see structure). The compound has antiferromagnetic interactions and the nature of the iron centers is investigated by Mössbauer spectroscopy.

Inorganic–Organic Hybrid Structures: Open‐Framework Iron Phosphite–Oxalates of Varying Dimensionality

“…[24] The present building unit, SBU-7, to our knowledge, is unique and no known examples exist in the literature. We have recently observed another type of SBU-7 in a zinc phosphite, [(C 4 N 2 H 12 )A C H T U N G T R E N N U N G (C 5 NH 4 )] 4 A C H T U N G T R E N N U N G [Zn 6 A C H T U N G T R E N N U N G (HPO 3 ) 8 ], [23] in which a six-unit-membered ring is capped by a phosphite group.…”

“…[1] Recent research has shown that the phosphite group can be employed as a building unit in the formation of a new series of inorganic open-framework solids. Thus, phosphite networks of Zn, [2,3] Fe, [4,5] V, [6] and Cr, [7] have been prepared and their structures determined. The phosphite group, with three PÀO bonds, can form unique networks that are not generally observed in the typical fourconnected phosphate-based compounds.…”

Synthesis, characterization and magnetic property of a new 3D iron phosphite: |C4N3H14|[Fe3(HPO3)4F2(H2O)2] with intersecting channels

“…And lots of organically templated metal phosphites with extended networks have been synthesized and characterized, such as manganese [12], cobalt [13], zinc [14][15][16][17] and vanadium [18]. Although the tenor of preparation of metal phosphite framework has achieved success, only a few iron phosphite compounds exist [19][20][21][22][23][24][25]. Such as the two iron phosphites reported by Rojo and coworkers, jC 4 [20] with a mixed-valence nature and the presence of both the phosphite and hydrogen-phosphate-phosphate oxoanions, |C 5 H 18 N 3 |[Fe 3 (HPO 3 ) 6 ] [21] with a pillared structure formed by the interpenetration of two subnets.…”

“…Although the tenor of preparation of metal phosphite framework has achieved success, only a few iron phosphite compounds exist [19][20][21][22][23][24][25]. Such as the two iron phosphites reported by Rojo and coworkers, jC 4 [20] with a mixed-valence nature and the presence of both the phosphite and hydrogen-phosphate-phosphate oxoanions, |C 5 H 18 N 3 |[Fe 3 (HPO 3 ) 6 ] [21] with a pillared structure formed by the interpenetration of two subnets. Natarajan and coworkers reported the synthesis of the first one-dimensional (1D) iron phosphite-phosphate |C 10 [24].…”

Inorganic–organic hybrid structure: Synthesis, structure and magnetic properties of a cobalt phosphite–oxalate, [C4N2H12][Co4(HPO3)2(C2O4)3]

“…Recently, the pseudo pyramidal phosphite, H 3 PO 3 , group has been investigated with interest as a possible replacement for the traditional phosphate tetrahedra with great success. Thus, inorganic phosphite compounds with open-framework structures of different dimensionalities have been encountered for Zn [2][3][4][5][6], V [7][8][9][10][11], Cr [10,12], Mn [13], Fe [11,[14][15][16], Co [17], Al [18], Ga [19], Be [20], and Mo [21]. Inorganic-organic hybrid compounds containing both oxalate and phosphate units have also been prepared [22][23][24][25][26].…”