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Titolo:
Isolation of a zinc phosphate primary building unit, [C6N2H18](2+)[Zn(HPO4)(H2PO4)(2)](2-), and its transformation to an open-framework phosphate, [C6N2H18](2+)[Zn-3(H2O)(4)(HPO4)(4)](2-)
Autore:
Neeraj, S; Natarajan, S; Rao, CNR;
Indirizzi:
Jawaharlal Nehru Ctr Adv Sci Res, Chem Phys Mat Unit, Bangalore 560064, Karnataka, India Jawaharlal Nehru Ctr Adv Sci Res Bangalore Karnataka India 560064 , India
Titolo Testata:
JOURNAL OF SOLID STATE CHEMISTRY
fascicolo: 2, volume: 150, anno: 2000,
pagine: 417 - 422
SICI:
0022-4596(200003)150:2<417:IOAZPP>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Rao, CNR Jawaharlal Nehru Ctr Adv Sci Res, Chem Phys Mat Unit, Jakkur PO, Bangalore560064, Karnataka, India Jawaharlal Nehru Ctr Adv Sci Res Jakkur PO Bangalore Karnataka India 560064
Citazione:
S. Neeraj et al., "Isolation of a zinc phosphate primary building unit, [C6N2H18](2+)[Zn(HPO4)(H2PO4)(2)](2-), and its transformation to an open-framework phosphate, [C6N2H18](2+)[Zn-3(H2O)(4)(HPO4)(4)](2-)", J SOL ST CH, 150(2), 2000, pp. 417-422

Abstract

A 4-membered ring zinc phosphate monomer, I, [C6N2H18](2+) [Zn(HPO4) (H2PO4)(2)](2-), has been isolated by the reaction of the Zn2+ with the amine, N,N,N',N'-tetramethylethylenediamine (TMED) and H3PO4 at room temperature over an extended period of time, It could also be prepared by the reaction ofthe amine phosphate, [C6N2H18][HPO4] 2H(2)O, with Zn2+ in the temperature range 30-80 degrees C. The phosphate monomer consists of a network of ZnO4,PO2(OH)(2), and PO3(OH) tetrahedral units linked by their vertices, forming isolated 4-membered rings that are held by hydrogen bond interactions. Interestingly, I, on mild heating, transform into a layered structure, II, [C6N2H18](2+) [Zn-3(H2O)(4)(HPO4)(4)](2-). The structure of II consists of a network of ZnO4, ZnO2(H2O)(4), and PO3(OH) moieties sharing the vertices, forming a layered architecture. The formation of a layered structure from the 4-membered ring monomer suggests that the 4-membered ring is likely to bethe primary building unit of the open-framework phosphates. (C) 2000 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 16:17:15