Zobrazeno 1 - 10
of 20
pro vyhledávání: '"L. M. Barcina"'
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 216:326-330
The hydrogen atom positions of the layered phosphates Zr(PO4)(H2PO4)⋅2H2O (γ-ZrP) and Hf(PO4)(H2PO4)⋅2H2O (γ-HfP) have been determined from neutron powder diffraction data and the complete crystal structures have been refined by the Rietveld me
Autor:
María A. Villa-García, Julio Rodríguez, Ricardo Llavona, Marta Suárez, L. M. Barcina, M. Luz Rodríguez, Adela Anillo
Publikováno v:
Solvent Extraction and Ion Exchange. 17:1371-1384
The mechanism of intercalation of piperidine in α-hafnium phosphate, Hf(HPO4;V) 2H2O (dooz = 7.6 [Adot]) and γ-hafnium phosphate, Hf(P04)(H2P04) 2H20 (doo2 - 12.1 [Adot]), has been investigated by ...
Publikováno v:
Journal of Molecular Structure. 470:105-119
This review compiles the recent investigations on layered hafnium phosphates in the α and γ varieties. Their preparation, properties and crystalline structures are described. The behaviour of both compounds during the intercalation of n -alkylamine
Publikováno v:
Journal of Materials Research. 13:1218-1224
The intercalation in vapor phase of cyclic amines (aniline, benzylamine, cyclohexylamine, piperidine, and pyridine) in α–hafnium bis(hydrogen phosphate) monohydrate (α–HfP) has been investigated. Elemental and thermal analysis lead to the estab
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 311:263-268
The reactions of chromium (III) acetate Cr(OAc)3 (OAc˭CH3OCO) solutions with suspensions of n-propylamine / α-hamium phosphate [Hf(HPO4)2·2C3H7NH2·H2O] (Apr-HfP) have been investigated over a wide range of Cr(OAc)3 concentrations and heating cond
Autor:
Marta Suárez, Santiago García-Granda, Pilar Pertierra, Ricardo Llavona, L. M. Barcina, Julio Rodríguez, Miguel A. Salvadó
Publikováno v:
Journal of the Chemical Society, Dalton Transactions. :99-102
A highly crystalline compound Hf(PO4)(H2PO4)·2H2O (γ-HfP) has been prepared via the partially substituted γ-HfP sodium phase, by the reflux method. Its crystalline structure was solved by X-ray powder diffractometry: monoclinic, space group P21, a
Publikováno v:
Scopus-Elsevier
Thermogravimetry (TG), derivative thermogravimetry (DTG) and differential scanning calorimetry (DSC), were found to be suitable instrumental techniques for the study of monumental rocks because they need small amounts of sample and provide extensive
Publikováno v:
ChemInform. 30
Publikováno v:
ChemInform. 30
Publikováno v:
Journal of the Chemical Society, Dalton Transactions. :2757
The intercalation behaviour from the liquid phase of n-alkylamines (n = 1–6) and the cyclic amines aniline, benzylamine, cyclohexylamine, piperidine and pyridine in α-hafnium phosphate Hf(HPO 4 ) 2 ·H 2 O has been studied. The composition of the