Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Abilio J. F. N. Sobral"'
Autor:
Micael D. Miranda, Manuela Ramos Silva, Teresa M. R. Maria, Avula Balakrishna, Abilio J. F. N. Sobral
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 12, Pp o3462-o3463 (2012)
Molecules of the title compound, C52H38N4O8, are located on an inversion center so that the asymmetric cell contains one half of the molecule. The macrocycle exhibits a ruffled conformation with a maximum deviation of 0.16 Å for the 24 macrocycle at
Externí odkaz:
https://doaj.org/article/5e37b69453fc43a28f8f29e96d5259c4
Autor:
Ana C. Santos, Manuela Ramos Silva, Paula V. Monsanto, Ana Matos Beja, Abilio J. F. N. Sobral
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 7, Pp o1594-o1594 (2009)
The molecule of the title compound, C18H28N2, composed of two 2,5-dimethylpyrrole groups linked by a hexane chain, lies across a crystallographic inversion centre. The mean plane of the pyrrole ring is almost perpendicular to the mean plane of the ce
Externí odkaz:
https://doaj.org/article/4871030e650b41dd88799d0530b22f19
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 9, Pp o1762-o1762 (2008)
In the crystal structure of the title compound, C12H10N6, the molecules deviate slightly from planarity. The plane of the central triazole ring makes angles of 6.13 (9) and 3.28 (10)° with the pyridyl ring planes. Intramolecular N—H...N interactio
Externí odkaz:
https://doaj.org/article/c8d866db0c094da888670542d3806932
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 2, Pp m394-m394 (2008)
In the title compound, [Cu(SO4)(C10H9NO2)2]·2H2O, the CuII ion is chelated by two (2-quinolyl)methanediol ligands and coordinated by a monodentate sulfate ligand in a distorted trigonal–bipyramidal environment, with O atoms occupying the equatoria
Externí odkaz:
https://doaj.org/article/b2b0dde89a22401e8e3b2a5c32134375
Publikováno v:
Carbohydrate polymers. 198
Carbon dioxide is one of the greenhouse gases whose increasing concentration in the atmosphere can cause severe problems to both human health and wildlife. A simple ecofriendly procedure was developed to prepare zeolite-chitosan (ZY-CS) composite usi
Autor:
Aijaz, Ahmad, Mohmmad Younus, Wani, Mrudula, Patel, Abilio J F N, Sobral, Adriano G, Duse, Faisal Mohammed, Aqlan, Abdullah Saad, Al-Bogami
Publikováno v:
MedChemComm. 8(12)
The occurrence of invasive fungal diseases, particularly in immunocompromised patients, is life-threatening and increases the economic burden. The rising problem of multi-drug resistance is becoming a major concern for clinicians. In addition, a repe
Autor:
Balu, Krishnakumar, Avula, Balakrishna, Cláudia T, Arranja, Carlos M F, Dias, Abilio J F N, Sobral
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 176
In this paper, for the first time, chemically modified 5,10,15,20-meso-tetra-(para-amino)-phenyl-porphyrin/TiO
Autor:
Ana C F, Ribeiro, Victor M M, Lobo, Abilio J F N, Sobral, Helder T F C, Soares, Ana R J, Esteso, Miguel A, Esteso
Publikováno v:
Acta chimica Slovenica. 57(2)
Mutual diffusion coefficients (interdiffusion coefficients) have been measured for sodium fluoride in water at 298.15 K and 310.15 K at concentrations between 0.003 mol dm-3 and 0.05 mol dm-3. The diffusion coefficients were measured using a conducti
Autor:
Susana Simões, Victor M.M. Lobo, Artur J.M. Valente, Ana C.F. Ribeiro, Miguel A. Esteso, Hugh D. Burrows, and Abilio J. F. N. Sobral
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
CIÊNCIAVITAE
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
CIÊNCIAVITAE
Mutual diffusion coefficients (interdiffusion coefficients) and molar conductivities have been measured for copper(II) chloride in water at 298.15 K and 310.15 K at concentrations between 0.005 mol·dm-3 and 0.05 mol·dm-3. The diffusion coefficients
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61d473a649dc4a0f1202cd98216d6fc4
https://hdl.handle.net/10316/10608
https://hdl.handle.net/10316/10608
Autor:
Abilio J. F. N. Sobral
Publikováno v:
Journal of Chemical Education. 83:1665
In this laboratory activity, students are introduced to the synthesis of dipyrromethanes, which are important precursors for porphyrin and calix[4]pyrrole. The acid-catalyzed condensation of pyrrole and 3-pentanone in water uses common inexpensive re