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Titolo:
Intercalation of n-alkylamines into layered materials: a method for the recognition of isomorphism in semicrystalline compounds
Autore:
Espina, A; Trobajo, C; Khainakov, SA; Garcia, JR; Bortun, AI;
Indirizzi:
Univ Oviedo, Dept Quim Organ & Inorgan, E-33006 Oviedo, Spain Univ OviedoOviedo Spain E-33006 Organ & Inorgan, E-33006 Oviedo, Spain ASEC Delphi Energy & Chassis Syst, Catoosa, OK 74015 USA ASEC Delphi Energy & Chassis Syst Catoosa OK USA 74015 oosa, OK 74015 USA
Titolo Testata:
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
fascicolo: 5, , anno: 2001,
pagine: 753 - 757
SICI:
1472-7773(2001):5<753:IONILM>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALPHA-TITANIUM-PHOSPHATE; ZIRCONIUM-PHOSPHATE; CRYSTAL-STRUCTURE; ION-EXCHANGE; AQUEOUS-SOLUTIONS; ARSENATE; REFINEMENT;
Keywords:
acid-base; intercalation; host-guest; solid state; structural studies; X-ray diffraction; X-ray powder diffraction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Espina, A Univ Oviedo, Dept Quim Organ & Inorgan, E-33006 Oviedo, Spain Univ Oviedo Oviedo Spain E-33006 norgan, E-33006 Oviedo, Spain
Citazione:
A. Espina et al., "Intercalation of n-alkylamines into layered materials: a method for the recognition of isomorphism in semicrystalline compounds", J CHEM S DA, (5), 2001, pp. 753-757

Abstract

n-Alkylamines were intercalated into Ti2O3(H2AsO4)(2). 2H(2)O (TiOAs) and Zr2O3(HAsO4). 3H(2)O (ZrOAs) by exposing the solids to the amine vapour. The formulae of the intercalation compounds are Ti2O3(H2AsO4)(2).1.7C(n)H(2n+1-)NH(2). 2H(2)O and Zr2O3(HAsO4).0.6C(n)H(2n+1)NH(2). 2H(2)O (n=3-6), respectively. The intercalated amines form bimolecular layers in the interlayerspace of the polyvalent metal arsenates. The changes in the basal spacing of the intercalation compounds as a function of the length of the alkyl chain were used for evaluation of the free area associated with each active centre in the arsenate layers: 11.8 (TiOAs) and 10.8 Angstrom (2) (ZrOAs). The comparison of these data with analogous data reported for n-alkylamine intercalation into other metal(IV) arsenates and metal(IV) phosphates resulted in the formulation of a procedure for the recognition of isomorphism in semicrystalline compounds.

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Documento generato il 20/09/20 alle ore 00:15:13