Kuhn, FE, Zhao J, Abrantes M, Sun W, Afonso CAM, Branco LC, Goncalves IS, Pillinger M, Romao CC.
2005.
Catalytic olefin epoxidation with cyclopentadienyl-molybdenum complexes in room temperature ionic liquids. Tetrahedron Letters. 46:47-52., Number 1
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Figueirinhas, JL, Cruz C, Filip D, Feio G, Ribeiro AC, Frere Y, Meyer T, Mehl GH.
2005.
Deuterium NMR investigation of the biaxial nematic phase in an organosiloxane tetrapode. Phys Rev Lett. 94:107802., Number 10
AbstractDeuterium NMR is used to examine the molecular order exhibited by an organosiloxane tetrapode giving the first experimental evidence, using a bulk sample, for the existence of a biaxial nematic phase in this type of compounds. The temperature dependence of the averaged quadrupolar coupling constant and asymmetry parameter was determined in the compound's nematic phase. Two distinct regimes could be identified, one with a vanishing asymmetry parameter corresponding to a uniaxial nematic phase and another with a significant temperature dependent asymmetry parameter, corresponding to a biaxial nematic phase. The high values obtained for the asymmetry parameter at the lower end of the nematic range are well above experimental error and constitute a definite proof of the biaxial nature of the nematic phase exhibited by the studied compound for those temperatures.
Gago, S, Fernandes JA, Rainho JP, Ferreira RAS, Pillinger M, Valente AA, Santos TM, Carlos LD, Ribeiro-Claro PJA, Goncalves IS.
2005.
Highly luminescent tris(beta-diketonate)europium(III) complexes immobilized in a functionalized mesoporous silica. Chemistry of Materials. 17:5077-5084., Number 20
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Carvalho, AL, Pires VMR, Gloster TM, Turkenburg JP, Prates JAM, Ferreira LMA, Romao MJ, Davies GJ, Fontes C, Gilbert HJ.
2005.
Insights into the structural determinants of cohesin dockerin specificity revealed by the crystal structure of the type II cohesin from Clostridium thermocellum SdbA. Journal of Molecular Biology. 349:909-915., Number 5
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Aucejo, R, Alarcon J, Garcia-Espana E, Llinares JM, Marchin KL, Soriano C, Lodeiro C, Bernardo MA, Pina F, Pina J, de Melo JS.
2005.
A new Zn-II tweezer pyridine-naphthalene system - An off-on-off system working in a biological pH window. European Journal of Inorganic Chemistry. :4301-4308., Number 21
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Schafer, T, Branco LC, Fortunato R, Izak P, Rodrigues CM, Afonso CAM, Crespo JG.
2005.
Opportunities for membrane separation processes using ionic liquids. Ionic Liquids Iiib: Fundamentals, Progress, Challenges and Opportunities: Transformations and Processes. 902(
Rogers, R. D., Seddon, K. R., Eds.).:97-110.
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Lopez-Cortes, A, Bursakov S, Figueiredo A, Thapper AE, Todorovic S, Moura JJ, Ollivier B, Moura I, Fauque G.
2005.
Purification and preliminary characterization of tetraheme cytochrome c3 and adenylylsulfate reductase from the peptidolytic sulfate-reducing bacterium Desulfovibrio aminophilus DSM 12254. Bioinorg Chem Appl. :81-91.
AbstractTwo proteins were purified and preliminarily characterized from the soluble extract of cells (310 g, wet weight) of the aminolytic and peptidolytic sulfate-reducing bacterium Desulfovibrio (D.) aminophilus DSM 12254. The iron-sulfur flavoenzyme adenylylsulfate (adenosine 5'-phosphosulfate, APS) reductase, a key enzyme in the microbial dissimilatory sulfate reduction, has been purified in three chromatographic steps (DEAE-Biogel A, Source 15, and Superdex 200 columns). It contains two different subunits with molecular masses of 75 and 18 kDa. The fraction after the last purification step had a purity index (A(278nm) / A(388nm)) of 5.34, which was used for further EPR spectroscopic studies. The D. aminophilus APS reductase is very similar to the homologous enzymes isolated from D. gigas and D. desulfuricans ATCC 27774. A tetraheme cytochrome c(3) (His-heme iron-His) has been purified in three chromatographic steps (DEAE- Biogel A, Source 15, and Biogel-HTP columns) and preliminarily characterized. It has a purity index ([A(553nm) - A(570nm)](red) / A(280nm)) of 2.9 and a molecular mass of around 15 kDa, and its spectroscopic characterization (NMR and EPR) has been carried out. This hemoprotein presents similarities with the tetraheme cytochrome c(3) from Desulfomicrobium (Des.) norvegicum (NMR spectra, and N-terminal amino acid sequence).
Gago, S, Rodriguez-Borges JE, Teixeira C, Santos AM, Zhao J, Pillinger M, Nunes CD, Petrovski Z, Santos TM, Kuhn FE, Romao CC, Goncalves IS.
2005.
Synthesis, characterization and catalytic studies of bis(chloro)dioxomolybdenum(VI)-chiral diimine complexes. Journal of Molecular Catalysis a-Chemical. 236:1-6., Number 1-2
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