Journal ArticleDOI
Binary and ternary nickel (II) complexes with 2-methylquinoline-8-carboxylic acid and some amino acids
Yurgenis Henríquez,Lino Hernández,Neudo Urdaneta,Elier Galarraga,Angel Santorelli,Vanessa R. Landaeta,Rafael E. Rodríguez-Lugo,Mary Lorena Araujo,Vito Lubes +8 more
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In this paper, the ligand 2-methylquinoline-8-carboxylic acid (HL) was prepared using a modification of a previous protocol, and its protonation constants were studied.Abstract:
In this work, the ligand 2-methylquinoline-8-carboxylic acid (HL) was prepared using a modification of a previous protocol, and its protonation constants were studied. The stability constants of th...read more
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Ternary complex formation of the nickel(II), 2,2’-bipyridine, 1,10’-Phenanthroline and some aminoacids
TL;DR: In this article, the results of a speciation study on the ternary complexes present in Ni(II)- 1,10 phenanthroline (Phen)-amino acids and Ni (II)- 2,2-bipyridine (Bipy) amino acids were reported.
Journal ArticleDOI
Binary and ternary nickel (II) complexes with picolinic acid and several amino acids
Alba Paz,Isis Caceres,Yola Fakhri,Yurgenis Henríquez,Mary Lorena Araujo,Vito Lubes,Lino Hernández +6 more
TL;DR: The results from a chemical speciation study of binary and ternary complexes formed by Ni(II) ion with picolinic acid and the amino acids are presented, based on the use of potentiometric data analysed with the least-squares program LETAGROP in 1 M NaCl aqueous solution at 25°C.
Journal ArticleDOI
A Novel Polyaromatic Chalcone with Multiple Functional Groups: Synthetic, Photophysical, and Computational Elucidation
TL;DR: In this article, the title polyaromatic chalcone compound (PyMQ-chalcone) was sequentially synthesized via a three-step synthetic procedure and well characterized. Structural illumination was achieved by 1D and 2D...
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Ternary nickel (II) complexes with 8-hydroxyquinoline and some amino acids
Yoselin Linares,Orlimar Perez,Andres Urdaneta,Yurgenis Henríquez,Edgar Del Carpio,Giuseppe Lubes,Waleska Madden,Mary Lorena Araujo,Vito Lubes,Lino Hernández +9 more
TL;DR: In this article, the results of a speciation study on the ternary complexes present in the systems formed by Ni(II) ion, 8-hydroxyquinoline (8-HQ), and the amino acids were reported.
References
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Hyperquad simulation and speciation (HySS): a utility program for the investigation of equilibria involving soluble and partially soluble species
TL;DR: Hyperquad simulation and speciation (HySS) as mentioned in this paper is a computer program written for the Windows operating system on personal computers which provides simulating titration curves and a system for providing speciation diagrams.
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NMR nomenclature. Nuclear spin properties and conventions for chemical shifts(IUPAC Recommendations 2001)
Robin K. Harris,Edwin D. Becker,Sonia Maria Cabral de Menezes,Robin J. Goodfellow,Pierre Granger +4 more
TL;DR: In this paper, a unified scale is recommended for reporting the NMR chemical shifts of all nuclei relative to the 1 H resonance of tetramethylsilane (TMS) in dilute solution (volume fraction, φ < 1%).
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Multiparametric scaling of diffraction intensities
TL;DR: The scaling model presented here includes: scale and temperature factor per batch of data; temperature factor as a continuous function of the radiation dose; absorption in the crystal; uneven exposure within a single diffraction image; and corrections for phenomena that depend on the diffraction peak position on the detector.
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8-Hydroxyquinolines in medicinal chemistry: A structural perspective.
TL;DR: This review has summarized 8-Hydroxyquinolines, 8-hydroxyquinoline-like compounds,8-hydrox Quinoline-loaded nanoparticle systems with respect to their biological activities, interaction with metal ions and mechanisms of action.