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Titolo:
Three-dimensional zinc phosphates with open architectures
Autore:
Neeraj, S; Natarajan, S;
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:
CHEMISTRY OF MATERIALS
fascicolo: 9, volume: 12, anno: 2000,
pagine: 2753 - 2762
SICI:
0897-4756(200009)12:9<2753:TZPWOA>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATOM ZINCOPHOSPHATE STRUCTURES; DIRECTING ORGANIC AMINES; TEMPERATURE SYNTHESIS; CRYSTAL-STRUCTURES; MOLECULAR-SIEVES; FRAMEWORKS; SODALITE; CHANNELS; LAYERS; CHAINS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Natarajan, S Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India Jawaharlal Nehru Ctr Adv Sci Res Bangalore Karnataka India 560064
Citazione:
S. Neeraj e S. Natarajan, "Three-dimensional zinc phosphates with open architectures", CHEM MATER, 12(9), 2000, pp. 2753-2762

Abstract

Two new zinc phosphates, [C3N2H12](2)[Zn-4(PO4)(4)], I, [C3N2H12](2)[Zn-5(H2O)(PO4)(4)(HPO4)], II, have been synthesized hydrothermally in the presence of 1,3-diaminopropane (DAP). Both I and II consist of the vertex linkingZnO4 and PO4 tetrahedral units forming channels bound by eight T atoms (T = Zn, P). The structure of II possesses similar building units as that of the naturally occurring aluminosilicate mineral, thomsonite, but interruptions in the connectivity between the building units creates marginal differences. To our knowledge, II is the first analogue of thomsonite. The amine molecules, in I and II, are situated within the channels and the loss of the amine molecule causes the collapse of the framework forming condensed zinc phosphates. Crystal data: [NH3(CH2)(3)NH3](2)[Zn4P4O16] (I), M = 793.6, monoclinic, space group = P2(1) (no. 4), alpha = 10.200(1), b = 9.998(1), c = 10.447(1) Angstrom, beta = 92.24(1)degrees, V = 1064.62(3) Angstrom(3), Z =2, rho(calc) = 2.476 g cm(-3), mu(Mo K alpha)= 4.840 mm(-1), R-1 = 0.038, wR(2) = 0.099 [2231 observed reflections with I > 2 sigma(I)]; [C3N2H12](2)[Zn5(H2O)(PO4)(4)-(HPO4)] (II), M = 973.02, monoclinic, space group = P2(1)(no. 4), a = 9.299(4), b = 9.751(1), c = 14.335(1) Angstrom, beta = 90.97(4)degrees, V = 1299.67(9) Angstrom(3), Z = 2, rho(calc) = 2.486 g cm(-3), mu(MoK alpha) = 4.955 mm(-1), R-1 = 0.028, wR(2) = 0.063 [3389 observed reflections with I > 2 sigma(I)].

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Documento generato il 27/11/20 alle ore 12:59:31