Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Rita G. Hazell"'
Publikováno v:
Microporous and Mesoporous Materials. 109:383-391
A new amine-templated zinc phosphate, [C6H14N2][Zn2(HPO4)3], was prepared by solvothermal synthesis using 1,4-diazabicyclo[2.2.2]octane, dabco, as structure-directing agent. This compound (denoted AU-IV) is a new monoclinic polymorph built from corne
Autor:
Jens-Erik Jørgensen, Aleksandra Wiedermann, Hans J. Jakobsen, Marie-Agnes Chevallier, Rita G. Hazell, Lene Bastrup Jørgensen, Torben R. Jensen
Publikováno v:
Solid State Sciences. 9:72-81
A new piperazinium dihydrogen orthophosphate, C4H12N2(H2PO4)2 was discovered and characterized by combining information from X-ray diffraction, 31P CP/MAS NMR and thermal analysis (TG/DTA). The compound C4H12N2(HPO4)·H2O, was also studied in order t
Publikováno v:
Microporous and Mesoporous Materials. 84:144-152
New open-framework of zinc phosphate materials, [CH 3 NH 3 ][(Co x Zn 1− x ) 4 (PO 4 ) 3 ], were synthesised under hydrothermal conditions in the presence of the organic additive 3-dimethylamino-1-propylamine, (CH 3 ) 2 NH(CH 2 ) 3 NH 2 . This amin
New Amine-Templated Zinc Phosphates with a Temperature-Induced Increase of Structural Dimensionality
Publikováno v:
Inorganic Chemistry. 44:658-665
Three new amine-templated zinc phosphates, [C4N2H14][Zn(HPO4)2].H2O, AU-I, [C4N2H14][Zn2(H(0.5)PO4)2(H2PO4)], AU-II, and [C4N2H14][Zn5(H2O)(PO4)4], AU-III, are prepared by hydrothermal synthesis using an organic amine, N,N'-dimethylethylendiamine CH3
Autor:
Óscar López, Paul V. Murphy, Mikael Bols, Rita G. Hazell, Ciaran McDonnell, José G Fernández Bolaños
Publikováno v:
McDonnell, C, Lopez, O L, Murphy, P, Bolanos, J F, Hazell, R & Bols, M 2004, ' Conformational effects on glycoside reactivity: Study of the high reactive conformer of glucose ', Journal of the American Chemical Society, vol. 126, pp. 12374-12385 .
The effect of conformation on glycoside reactivity was investigated by studying the hydrolysis of a selection of 3,6-anhydroglucosides as models for glucose in the highly reactive (1)C(4) conformation. Methyl 3,6-anhydro-beta-D-glucopyranoside was fo
Publikováno v:
Chemistry - A European Journal. 9:6145-6154
A series of novel ketimines with intrinsic protecting group anchoring was synthesized and allowed to react with various silylketene acetals in the presence of 5-10 mol % of a chiral Zn(OTf)(2)-(R,R)-Ph-pybox-aqua complex. The corresponding optically
Publikováno v:
The Journal of Organic Chemistry. 67:8331-8338
A new catalytic enantioselective conjugate addition of nitroalkanes to acyclic alpha,beta-unsaturated enones catalyzed by novel organic catalysts has been developed. A series of chiral amines has been tested as catalysts for the addition of 2-nitropr
Publikováno v:
Acta Crystallographica Section B Structural Science. 58:808-814
The synthesis of BaC2O4·0.5H2O and its thermal decomposition to α-BaC2O4 and β-BaC2O4 was investigated. BaC2O4·0.5H2O is precipitated at room temperature from aqueous solutions of barium chloride and ammonium oxalate. The deuterated compound BaC2
Publikováno v:
Journal of Solid State Chemistry. 166:341-351
The system LiOH:Zn(NO3)2:H3PO4:H2O was investigated using hydrothermal synthesis techniques in the temperature range 20°C 3σ(Fo2) (λ=0.9346(1) A). The cations are tetrahedrally coordinated to oxygen, and the structure can be viewed as layers of re
Publikováno v:
The Journal of Organic Chemistry. 67:4875-4881
The catalytic enantioselective Henry reaction of α-keto esters with nitromethane has been developed. The reaction conditions have been optimized by the screening of different chiral Lewis acids, solvents, and bases, and it was found that the copper(