Amine-intercalated layered SnII phosphates with open-framework structures

Ramaswamy, Padmini ; Natarajan, Srinivasan (2006) Amine-intercalated layered SnII phosphates with open-framework structures European Journal of Inorganic Chemistry, 2006 (17). pp. 3463-3471. ISSN 1434-1948

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/ejic.20...

Related URL: http://dx.doi.org/10.1002/ejic.200600273

Abstract

Three new SnII phosphate materials, [NH3(CH2)3 NH2(CH2)2NH2(CH2)3 NH3]·2[Sn2P2O8] (I), [(N2C5H14)2][Sn4P4 O16]·3H2O (II) and [(N2C5H14)] [Sn2P2O8]·H2O (III), have been synthesised by means of hydrothermal methods using N,N'-bis(3-aminopropyl)ethylenediamine (BAPEN; for I) and homopiperazine (H-PIP; for II and III), respectively, as the structure-directing organic amines. The solids I-III have layered architectures. The structures of all three compounds consist of strictly alternating vertex-sharing trigonal-pyramidal SnO3 and tetrahedral PO4 moieties forming infinite layers possessing apertures bound by 4- and 8-T atoms (T = Sn, P). The distorted 4- and 8-membered apertures within the layers suggest the subtle influence of the lone-pair of electrons of SnII on the structure. The interlamellar space is occupied by the protonated organic amine molecules which interact with the framework through N-H···O hydrogen bonding. The compounds I-III bear some structural relationship to the layered zinc phosphite phases.

Item Type:Article
Source:Copyright of this article belongs to John Wiley and Sons, Inc.
Keywords:Template Synthesis; X-ray Diffraction; Layered Compounds; Hydrogenbonds; Tin; Phosphorus
ID Code:27776
Deposited On:11 Dec 2010 07:56
Last Modified:04 Mar 2011 09:48

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