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Titolo:
A zinc phosphate possessing ladder-like layers made up of three- and four-membered rings and infinite Zn-O-Zn chains
Autore:
Neeraj, S; Natarajan, S; Rao, CNR;
Indirizzi:
Jawaharlalarnataka,r Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, K Jawaharlal Nehru Ctr Adv Sci Res Bangalore Karnataka India 560064 0064, K
Titolo Testata:
CHEMISTRY OF MATERIALS
fascicolo: 5, volume: 11, anno: 1999,
pagine: 1390 - 1395
SICI:
0897-4756(199905)11:5<1390:AZPPLL>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLECULAR-SIEVES; ARSENATE; NETS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Rao, CNR Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, POB 6436,Bangalore Jawaharlal Nehru Ctr Adv Sci Res POB 6436 Bangalore Karnataka India 560064
Citazione:
S. Neeraj et al., "A zinc phosphate possessing ladder-like layers made up of three- and four-membered rings and infinite Zn-O-Zn chains", CHEM MATER, 11(5), 1999, pp. 1390-1395

Abstract

A new open-framework zinc phosphate, [NH3(CH2)(2)NH(CH2)(2)NH3](2+)2[Zn2PO4(HPO4)](-), possessing a layered architecture and consisting of alternating inorganic and organic layers, stabilized by multipoint hydrogen bonding has been synthesized hydrothermally, It has the following crystal data: monoclinic space group C2/c, a = 25.075(5) Angstrom, b = 5.127(1) Angstrom, c =17.726(4) Angstrom, beta = 125.4(1)degrees, V = 1857.6(6) Angstrom(3), Z =8, M = 748.3(1), D-calc = 2.06 g cm(-3), MoK alpha, and R-F = 0.04. The structure is made up of ZnO4 and PO4 tetrahedra linked though vertexes, The connectivity between the two units creates a layered structure with steps, the layers consisting of three- and four-membered rings only. This is the first; instance of such a network in open-framework zinc phosphates. The exclusive presence of three-membered ring chains creates steps in the layers aswell as an infinite number of Zn-O-Zn one-dimensional chains. Hydrogen bond interactions between the inorganic layers give rise to pseudo 10-memberedring channels, in which the diprotonated diethyelenetriamine molecules reside. The unusual T atom (T being Zn or P) connectivity in this material suggests the possibility of synthesizing many such materials with novel connectivities and networks.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 19:57:05