A5015798622- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Organometallic Compounds Synthesis and Characterization
- Organometallic Complex Synthesis and Catalysis
- Metal complexes synthesis and properties
- Crystallography and molecular interactions
- Crystal structures of chemical compounds
- Chemical Synthesis and Analysis
- Catalytic Processes in Materials Science
- Organoboron and organosilicon chemistry
- Catalysis and Hydrodesulfurization Studies
- Synthesis and characterization of novel inorganic/organometallic compounds
- Synthesis and Biological Evaluation
- Asymmetric Hydrogenation and Catalysis
- Silicone and Siloxane Chemistry
- Organic Light-Emitting Diodes Research
- Nanomaterials for catalytic reactions
- Synthetic Organic Chemistry Methods
- Mass Spectrometry Techniques and Applications
- Sulfur-Based Synthesis Techniques
- Conducting polymers and applications
- Synthesis of heterocyclic compounds
- Chalcogenide Semiconductor Thin Films
- Synthesis and Characterization of Heterocyclic Compounds
- Synthesis and Reactions of Organic Compounds
Universidad Nacional Autónoma de México
2015-2025
Universidad Autónoma de Occidente
2022
Texas Tech University
2020
Instituto Politécnico Nacional
1999-2004
Universidad Autónoma del Estado de Morelos
2004
Center for Research and Advanced Studies of the National Polytechnic Institute
1999-2001
Fundar
2001
Centro de Investigación en Materiales Avanzados
1999-2000
Tin(IV) complexes 2a--q derived from pyridine Schiff bases were prepared and characterized. Four of this series evaluated in vitro against different carcinogenic cell lines; besides their anti-inflammatory antioxidant properties also tested. Combination mass spectrometry, multinuclear NMR X-ray diffraction techniques evidenced the formation heptacoordinated monomeric species. The analysis 2a, 2b, 2i, 2j 2n led to establish heptacoordination around tin atom solid state revealed that ligand...
Abstract A series of organotin(IV) complexes were synthesized from an unsymmetrical diimine‐Schiff base ligand derived dehydroacetic acid, salicylaldehydes (5‐R substituted R = H, F, Cl, Br, I, NO 2 , OCH 3 CH ) and 1,2‐phenylenediamine. The reaction also led to the formation 1,5‐benzodiazepines, catalyzed by diorganotin(IV) derivative used. compounds characterized IR, UV–vis, MS, 1 13 C 119 Sn NMR. hexacoordination tin atom for was suggested based on chemical shifts. X‐ray single‐crystal...
The synthesis of four mononuclear heptacoordinated organotin (IV) complexes mixed ligands derived from tridentated Schiff bases and pyrazinecarboxylic acid is reported. This were prepared by using a multicomponent reaction, the reaction proceeds in moderate to good yields (64% 82%). characterized UV-vis spectroscopy, IR mass spectrometry, 1H, 13C, 119Sn nuclear magnetic resonance (NMR) elemental analysis. spectroscopic analysis revealed that tin atom seven-coordinate solution carboxyl group...
The synthesis of four pentacoordinated organotin(IV) complexes prepared in a one-pot reaction from 2-hydroxy-1-naphthaldehyde, 2-amino-3-hydroxypyridine and organotin oxides is reported. were characterized by UV-Vis, IR, MS, 1H, 13C 119Sn NMR techniques. compound based on 2,2-diphenyl-6-aza-1,3-dioxa-2-stannanaphtho[1,2-h]pyrido[3,2-d]cyclononene revealed the formation monomeric complex with distorted five-coordinated molecular geometry intermediate between trigonal bipyramidal square...
Organotin complexes were prepared through a one-pot reaction with three components by reacting thiosemicarbazide or 4-methyl-3-thiosemicarbazide 4-phenylthiosemicarbazide, dehydroacetic acid (DHA) and dibutyl, diphenyl, dicyclohexyl, bis[(trimethylsilyl)methyl]tin(IV) oxides; all characterized infrared (IR), ultraviolet-visible (UV-vis), mass spectrometry (MS), nuclear magnetic resonance (NMR) spectroscopy. The 119Sn NMR revealed chemical shifts corresponding to pentacoordinated environment...
The synthesis of monomeric pentacoordinated diorganotin(IV) complexes derived from pyridoxal hydrochloride and 4‐ or 5‐ R ‐substituted ortho ‐aminophenols is described. were characterized using UV–visible, infrared, mass, 1 H NMR, 13 C NMR 119 Sn spectral techniques. molecular structure three was established X‐ray diffraction: 3b 3d show a distorted trigonal bipyramidal geometry, in which the basal plane defined by butyl groups iminic nitrogen atom, whereas oxygen atoms aromatic ring occupy...
The synthesis and characterisation of diorganotin(iv) monomeric derivatives pyridine Schiff bases pyridinic carboxylic acids are reported. All complexes were characterised by mass spectrometry, elemental analyses, IR spectra, multinuclear NMR analyses. Among them, 5a, 5d, 5e, 5g, 6a also confirmed X-ray crystallography diffraction which led to establishing that the tin atom is seven-coordinated has a distorted pentagonal–bipyramidal coordination environment in solid state revealed both...
Three types of homo- and heterotrinuclear boron complexes have been obtained in moderate to good yields from reactions salen-type ligands with boric acid combinations phenylboronic phenylphosphonic acid. The products are air-stable relatively high melting points (>290 degrees C) but poorly soluble or insoluble common organic solvents. They characterized as far possible by elemental analysis, mass spectrometry, IR, (1)H, (11)B, (31)P NMR spectroscopy, X-ray crystallography. Furthermore,...
Abstract Temephos (Tem) is an organophosphorus pesticide widely used to kill and prevent the growth of main vectors for transmission dengue, zika, chikungunya viruses. In chlorinated water, Tem oxidized its dioxon-sulfoxide (Tem-dox-SO), dioxon-sulfone (Tem-dox-SO 2 ), sulfoxide (Tem-SO) derivatives; however, these compounds are not commercially available be as standards in toxicological studies. present study, we synthesized characterized Tem-oxidation products compound...
The synthesis of pentacoordinated Tin(IV) compounds derived from aminoalcohols is described. were characterized by IR, 1H-, 13C-, and 119Sn-NMR, the mass spectrometry exhibits molecular ions corresponding to monomeric species. All evaluated for in vitro cytotoxic activities against five human tumor cell lines, U251 (human glioblastoma), PC-3 prostatic adenocarcinoma), K-562 chronic myelogenous leukemia), HCT-15 colorectal MCF-7 mammary adenocarcinoma). evaluation revealed that all possess...