Zobrazeno 1 - 10
of 461
pro vyhledávání: '"Alfonso, Castiñeiras"'
Publikováno v:
Molecules, Vol 29, Iss 14, p 3425 (2024)
This work describes the synthesis of eight new Pd(II) and Pt(II) complexes with the general formula [M(TSC)Cl], where TSC represents the 4N-monosubstituted thiosemicarbazone derived from 2-acetylpyridine N-oxide with the substituents CH3 (H4MLO), C2H
Externí odkaz:
https://doaj.org/article/715b8def561646a8baf734e471f90c27
Autor:
Tamara Liana Topală, Ionel Fizeşan, Andreea-Elena Petru, Alfonso Castiñeiras, Andreea Elena Bodoki, Luminița Simona Oprean, Marcos Escolano, Gloria Alzuet-Piña
Publikováno v:
Inorganics, Vol 12, Iss 6, p 158 (2024)
Four complexes of essential metal ions, Cu(II) and Ni(II), with the new sulfonamide ligand N-(pyridin-2-ylmethyl)quinoline-8-sulfonamide (HQSMP) were synthesized and physicochemically and structurally characterized. Complex [Cu(QSMP)Cl]n (2) consists
Externí odkaz:
https://doaj.org/article/24ae7d74e59e45a189a1d866d51728d8
Autor:
Alfonso Castiñeiras, Nuria Fernández-Hermida, Isabel García-Santos, Lourdes Gómez-Rodríguez, Antonio Frontera, Juan Niclós-Gutiérrez
Publikováno v:
Molecules, Vol 29, Iss 10, p 2245 (2024)
The reaction between 5-acetylbarbituric acid and 4-dimethylthiosemicarbazide or 4-hexamethyleneiminyl thiosemicarbazide produces 5-acetylbarbituric-4-dimethylthiosemicarbazone (H2AcbDM) and 5-acetylbarbituric-4N-hexamethyleneiminyl thiosemicarbazone
Externí odkaz:
https://doaj.org/article/204fd1b860bd4d488c75ca96b900abf2
Autor:
Homa Mousavi, María Eugenia García-Rubiño, Duane Choquesillo-Lazarte, Alfonso Castiñeiras, Luis Lezama, Antonio Frontera, Juan Niclós-Gutiérrez
Publikováno v:
Molecules, Vol 28, Iss 17, p 6263 (2023)
Reactions in water between the Cu2(µ-EGTA) chelate (EGTA = ethylene-bis(oxyethyleneimino)tetraacetate(4-) ion) and Hdap in molar ratios 1:1 and 1:2 yield only blue crystals of the ternary compound [Cu4(μ-EGTA)2(μ-H(N3)dap)2(H2O)2]·7H2O (1), which
Externí odkaz:
https://doaj.org/article/e5a461bff5a34f93b6b8be8efcff878c
Autor:
Carmen Rosales-Martínez, Antonio Matilla-Hernádez, Duane Choquesillo-Lazarte, Antonio Frontera, Alfonso Castiñeiras, Juan Niclós-Gutiérrez
Publikováno v:
Molecules, Vol 28, Iss 15, p 5830 (2023)
Considering that Cu(tda) chelate (tda: dithioacetate) is a receptor for adenine and related 6-aminopurines, this study reports on the synthesis, molecular and crystal structures, thermal stability, spectral properties and DFT calculations related to
Externí odkaz:
https://doaj.org/article/aa5214811fcb4031a006b46acf9fdb7d
Autor:
Jeannette Carolina Belmont-Sánchez, Duane Choquesillo-Lazarte, Ricardo Navarrete-Casas, Antonio Frontera, Alfonso Castiñeiras, Juan Niclós-Gutiérrez, Antonio Matilla-Hernández
Publikováno v:
Crystals, Vol 13, Iss 1, p 7 (2022)
Metal ion interactions with nuclei acids and their constituents represent a multi-faceted and growing research field. This contribution deals with molecular recognition between synthetic purine 17 nucleosides and first-row transition metal complexes,
Externí odkaz:
https://doaj.org/article/820cded4644d445d9dea837a8d6b88f5
Autor:
Alfonso Castiñeiras, Antonio Frontera, Isabel García-Santos, Josefa M. González-Pérez, Juan Niclós-Gutiérrez, Rocío Torres-Iglesias
Publikováno v:
Crystals, Vol 12, Iss 2, p 142 (2022)
We prepared cocrystals of DL-2-Hydroxy-2-phenylacetic acid (D, L-H2ma) with the pyridinecarboxamide isomers, picolinamide (pic) and isonicotinamide (inam). They were characterized by elemental analysis, single crystal and powder X-ray, IR spectroscop
Externí odkaz:
https://doaj.org/article/0fce8550180f4ed3a67433125b80ee3d
Publikováno v:
Chemistry Proceedings, Vol 8, Iss 1, p 22 (2021)
We have prepared co-crystals of racemic DL-2-Hydroxy-2-phenylacetic acid (DL-Mandelic acid, DL-H2ma) with achiral 2-Pyridinecarboxamide (picolinamide, pic), 3-Pyridinecarboxamide (nicotinamide, nam), and 4-Pyridinecarboxamide (isonicotinamide, inam);
Externí odkaz:
https://doaj.org/article/4121a3b57068498cb6eeaab8eb7ae817
Autor:
Inmaculada Velo-Gala, Miquel Barceló-Oliver, Diego M. Gil, Josefa M. González-Pérez, Alfonso Castiñeiras, Alicia Domínguez-Martín
Publikováno v:
Pharmaceuticals, Vol 14, Iss 3, p 244 (2021)
The synthetic nucleoside acyclovir is considered an outstanding model of the natural nucleoside guanosine. With the purpose of deepening on the influence and nature of non-covalent interactions regarding molecular recognition patterns, three novel Cu
Externí odkaz:
https://doaj.org/article/32b04e0572254be99852d043330ce88b
Autor:
Raquel Álvarez-Vidaurre, Alfonso Castiñeiras, Antonio Frontera, Isabel García-Santos, Diego M. Gil, Josefa M. González-Pérez, Juan Niclós-Gutiérrez, Rocío Torres-Iglesias
Publikováno v:
Crystals, Vol 11, Iss 4, p 328 (2021)
This work deals with the preparation of pyridine-3-carbohydrazide (isoniazid, inh) cocrystals with two α-hydroxycarboxylic acids. The interaction of glycolic acid (H2ga) or d,l-mandelic acid (H2ma) resulted in the formation of cocrystals or salts of
Externí odkaz:
https://doaj.org/article/db8a2c9db53842058fff4a8400afca01