Synthesis and Structures of a Layered and a Tubular Antimony(III) Phosphonate

Hydrothermal Synthesis, Crystal Structure and Characterizations of Four New Metal Phosphonates with Layered Structure

“…The Sb-O bond lengths are in the range of 1.976(5)-2.275(6) Å (see Table S2). These values are similar to those reported for other Sb III phosphonates [31,32]. L 3serves as a tetradentate ligand, which chelates one Sb III atom by using a hydroxy oxygen atom and one carboxylate oxygen atom, and bridges one Sb III atom through the phosphonate oxygen atoms, respectively.…”

“…The structure-directing properties of these amines are not well understood and the use of one amine can lead to the formation of a number of different framework structures [21][22][23]. By using organic diamines as the structure-directing agents, a series of new metal phosphonates with different structure types was obtained by our group [24][25][26][27]. As an extension of our work, four new metal phosphonates with layered structure, [12,13,25], where the same carboxyphosphonic acid ligand is employed.…”

Nanoporous Materials

“…The existence of three-dimensional zeolite-like phosphonates such as b-Cu(O 3 PCH 3 ) [152], Zn(O 3 PC 2 H 4 NH 2 ) [153] and b-Al 2 (CH 3 PO 3 ) 3 ÁH 2 O [154], supports this. One surprising result from this area has been the discovery of a remarkable antimony(III) methylphosphonate nanotube structure [155]. Even more surprising is the recent discovery by Forster and Cheetham of a number of open-framework formats [151,156], acetates [151] and other monocarboxylates [157] with two-and three-dimensional M-O-M networks.…”

Synthesis and characterizations of a layered antimony (III) phosphonate: [NH2CH2CH2NH2][Sb2(O3PCH(OH)CO2)2]

“…But, to the best of our knowledge, antimony (III) phosphonates with additional functional groups such as amine, hydroxyl and carboxylate groups have been rarely reported [19][20][21]. In this paper, a layered antimony (III) phosphonate, [NH 2 CH 2 CH 2 NH 2 ][Sb 2 {O 3 PCH(OH)CO 2 } 2 ] (1), has been synthesized by hydrothermal technique, using 2-hydroxyphosphonoacetic acid with three functional groups (-OH, -COOH, and -PO 3 H 2 ) as ligand [22].…”

“…Each Sb (III) atom is four-coordinated by two phosphonate oxygen atoms (O1 and O2) from two different [19][20][21]. The L 3À acts as a tetra-dentate ligand, which chelates one Sb atom using a hydroxyl oxygen atom (O4) and one carboxylate oxygen atom (O5), and bridges one Sb atom via the phosphonate oxygen atoms (O1 and O2), respectively.…”