J
Jesús Valdés-Martínez
Researcher at National Autonomous University of Mexico
Publications - 90
Citations - 1870
Jesús Valdés-Martínez is an academic researcher from National Autonomous University of Mexico. The author has contributed to research in topics: Crystal structure & Hydrogen bond. The author has an hindex of 23, co-authored 88 publications receiving 1782 citations. Previous affiliations of Jesús Valdés-Martínez include Illinois State University & University of Ioannina.
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Journal ArticleDOI
Spectral and structural studies of iron(III), cobalt(II,III) and nickel(II) complexes of 2-pyridineformamide N(4)-methylthiosemicarbazone
Douglas X. West,John K. Swearingen,Jesús Valdés-Martínez,Simón Hernández-Ortega,Ayman K. El-Sawaf,Frank van Meurs,Alfonso Castiñeiras,Isabel Garcı́a,Elena Bermejo +8 more
TL;DR: In this paper, the reduction of 2-cyanopyridine by sodium in dry methanol in the presence of N(4)-methylthiosemicarbazide produces 2-pyridineformamide, HAm4M. Coordination is via the pyridyl nitrogen, imine nitrogen and thione or thiolato sulfur when coordinating as the neutral and anionic ligand, respectively.
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Structural studies of three isomeric forms of heterocyclic N(4)-substituted thiosemicarbazones and two nickel(II) complexes
Douglas X. West,Gordon A. Bain,Ray J. Butcher,Jerry P. Jasinski,Yu Li,Roman Y. Pozdniakiv,Jesús Valdés-Martínez,Rubén A. Toscano,Simón Hernández-Ortega +8 more
TL;DR: In this article, three structural forms have been isolated among four 2-formyl- and 2-acetylpyridine N(4)-substituted thiosemicarbazones reported.
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Copper(II) complexes of 2-benzoylpyridine 4N-substituted thiosemicarbazones
Douglas X. West,Janeice S. Ives,Jacqueline Krejci,Michelle M. Salberg,Terri L. Zumbahlen,Gordon A. Bain,Anthony E. Liberta,Jesús Valdés-Martínez,Simon Hernandez-Ortiz,Rubén A. Toscano +9 more
TL;DR: In this paper, 2-benzoylpyridine 4 N-substituted thiosemicarbazones and their copper(II) complexes were used for growth inhibition studies against two human pathogenic fungi.
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Copper(II) and nickel(II) complexes of 2,3-butanedione bis(N(3)-substituted thiosemicarbazones)
Douglas X. West,Janeice S. Ives,Gordon A. Bain,Anthony E. Liberta,Jesús Valdés-Martínez,Klaus H. Ebert,Simón Hernández-Ortega +6 more
TL;DR: In this paper, the four thiosemicarbazones have been characterized by their melting points, as well as IR, electronic and NMR (1H, 13C) spectra.
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Binuclear copper(II) complexes of 2-hydroxyacetophenone 4N-substituted thiosemicarbazones
Douglas X. West,Yonghong Yang,Tracey L. Klein,Karen I. Goldberg,Anthony E. Liberta,Jesús Valdés-Martínez,Rubén A. Toscano +6 more
TL;DR: In this article, the crystal structure for the copper(II) complex of 2-hydroxyacetophenone 3-hexamethyleneiminylthiosemicarbazone, [Cu(Aphexim)]2, has been solved and its structural properties are compared to a recently reported nickel(II), which is shown to have no growth inhibitory activity against Aspergillus niger, but many have considerable activity against Paecilomyces variotii.