A5044274850- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Asymmetric Hydrogenation and Catalysis
- Organometallic Complex Synthesis and Catalysis
- Radical Photochemical Reactions
- Metal complexes synthesis and properties
- Coordination Chemistry and Organometallics
- Supramolecular Chemistry and Complexes
- Crystallography and molecular interactions
- Oxidative Organic Chemistry Reactions
- Catalytic C–H Functionalization Methods
- Luminescence and Fluorescent Materials
- Sulfur-Based Synthesis Techniques
- Carbon dioxide utilization in catalysis
- Molecular Sensors and Ion Detection
- Chemical Synthesis and Reactions
- Phosphorus compounds and reactions
- Click Chemistry and Applications
- Bioactive Compounds and Antitumor Agents
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Synthesis and Reactivity of Heterocycles
- Ferrocene Chemistry and Applications
- Catalytic Processes in Materials Science
- bioluminescence and chemiluminescence research
- Mercury impact and mitigation studies
Universidad de Burgos
2002-2020
Universitat de Barcelona
2007
Universidad de Zaragoza
2006
Considering the interest in processes related to hydrogen storage such as CO2 hydrogenation and formic acid (FA) decomposition, we have synthesized a set of Ir, Rh, or Ru complexes be tested versatile precatalysts these reactions. In relation with formation H2 from FA, possible applicability transfer (TH) challenging substrates quinoline derivatives using FA/formate donor has also been addressed. Bearing mind importance secondary coordination sphere interactions, N,N' ligands containing NH2...
Coordination of N,N' bidentate ligands aryl-pyridin-2-ylmethyl-amine ArNH-CH2-2-C5H4N 1 (Ar = 4-CH3-C6H4, 1a; 4-CH3O-C6H4, 1b; 2,6-(CH3)2-C6H3, 1c; 4-CF3-C6H4, 1d) to the moieties [Ru(bipy)2]2+, [Ru(eta5-C5H5)L]+ (L CH3CN, CO), or [Ru(eta6-arene)Cl]2+ (arene benzene, p-cymene) occurs under diastereoselective diastereospecific conditions. Detailed stereochemical analysis new complexes is included. The coordination these secondary amine activates their oxidation imines by molecular oxygen in a...
New cationic, half-sandwich Ru(II) arene compounds of general formula [(η(6)-arene)RuCl(κ(2)-N,N-L)]X (where L are functionalized phenanthrolines such as 1,10-phenanthroline-5-amine (aphen); 5,6-epoxy-5,6-dihydro-[1,10]phenanthroline (ephen); or 4,7-dihydroxy-1,10-phenanthroline (dhphen)) have been prepared to study their anticancer potential. All the isolated complexes fully characterized by spectroscopic and analytical techniques. The structure...
An organopalladium chemical dosimeter of Hg2+ that methylates Hg2+, undergoing a colour change in 1 : ethanol–water with submicromolar sensitivity, gives rise to an aqua–palladium complex is methylated by MeHg+ the presence dithiol compound, another change, thus making system suitable for naked-eye detection and MeHg+, two environmentally important species Hg2+.
The complexes [MCl(2)(kappa2-N approximately N')] (N N' = 2-C(5)H(4)N-CH2-NHAr; Ar 4-MeC(6)H(4), a; 2,6-Me(2)C(6)H(3), b; 4-MeOC(6)H(4), c; 4-CF(3)C(6)H(4), d; M Pd, 1a-d; Pt, 2a-d) have been prepared and fully stereochemically characterized both in the solid state solution. Their behavior DMSO-d6 solution is dependent on substituents of aryl group metal. Complexes palladium with at para position (1a, 1c, 1d) display a dynamic 1H NMR pattern when solutions are heated. An enantiomeric...
A new family of heteroleptic bis-cyclometalated IrIII complexes with formula [Ir(CN^ )2 (NN^ )]Cl (CN^ =2-phenylpyridinate and NN^ =2,2'-dipyridylamine or N-benzylated 2,2'-dipyridylamines, were synthesized, characterized, successfully used as photosensitizers in the catalytic photooxidation an array dialkyl, dibenzyl, alkyl aryl, diaryl sulfides, well sulfur-containing amino acids. Furthermore, reactions proceeded optimal chemoselectivity, atom economy under mild conditions. Experimental...
Abstract In this paper, the synthesis, comprehensive characterization and biological photocatalytic properties of two series neutral Ir III biscyclometalated complexes general formula [Ir(C^N) 2 (N^O)], where N^O ligands are 2‐(benzimidazolyl)phenolate‐ N,O ( L1 , a ) 2‐(benzothiazolyl)phenolate‐ L2 b ), C^N 2‐(phenyl)pyridinate or its derivatives, described,. Complexes types exhibit dissimilar photophysical properties. vitro cytotoxicity tests conclusively prove that derivatives harmless in...
In this work, we report experimental and computational evidence for the intercalation into DNA base-pairs of free quinones quinizarin (Q) naphthazarin (N) interstrand covalent binding their p-cymene di-ruthenium(ii) complexes (Cl2Ru2X, with X = N, Q bridging ligands). The extent N complex was larger than that Q, which is in good agreement higher relative contour length melting temperature same CX/CDNA ratio mean stacking distances between ligand nearest base-pair (3.34 Å 3.19 Å)...
Abstract Square‐planar complexes [PdCl{κ 2 ‐(RN = CHC 6 H 4 PPh )R′}] (R′ Cl; R 4‐CH 3 C , 1a ; 2‐CH OC 1b 2‐HOC 1c R′ CH 2a 2b 2c ) have been prepared and characterized. In – c only formation of one isomer was observed. The Pd–methyl bond arranges in a cis position to the phosphane fragment P,N chelating ligand. Reaction acetonitrile with AgBF led removal chlorido ligand coordination for . However, oxygen observed ligands became tricoordinate. DFT calculations developed on models displayed...
Abstract The reactivity of complexes [PdCl 2 (κ ‐NN′)] [NN′ = 2‐C 5 H 4 N‐CH=N‐Ar; Ar 2‐MeC 6 , a ; 4‐MeC b 2‐MeOC c 4‐MeOC d 4‐CF 3 C e 2,6‐Me f 2‐ i PrC g ] and [Pd(κ ‐acac)(κ ‐NN′)][BF toward the nucleophilic reagent acetylacetonate (acac) has been explored. This reaction starts with attack on cabonylic atom coordinated imine generating new C–C bond an amido complex. next step in is proton migration leading to protonation nitrogen, finally replacement this nitrogen anionic carbon atom....
Abstract Five new Ru II polypyridyl complexes bearing N ‐(arylsulfonyl)‐8‐amidoquinolate ligands and three of their biscyclometalated Ir III congeners have been prepared employed as photocatalysts ( PC s) in the photooxidation benzylamines with O 2 . In particular, do not exhibit photoluminescence, rather they harvest visible light efficiently are very stable solution under irradiation blue light. Their non‐emissive behavior has related to low electrochemical energy gaps rationalized on...
Palladium complexes of formula [PdLCl]X (X = Cl 1, BF42) containing the pincer terdentate ligands L [L 2,6-(ArNHCH2)2C5H3N (Ar 4-MeC6H41a and 2a, 4-MeOC6H41b 2b); 2,6-(4-MeC6H4NMeCH2)2C5H3N 1c 2c] have been synthesised as cis–trans diastereomeric mixtures. The chiral nature both amine arms accounts for mixtures isomers. All show dynamic behavior assigned to conversion between diastereomers. A ΔG‡273 68.9 kJ mol−1 2a a 65.8 2c were found through complete DNMR line-shape analysis –CH2– signals...
Herein, we harness the combination of two photocatalytic reactions, promoted by new Ir(<sc>iii</sc>) photosensitizers, for direct access to 3-thiocyanato indoles from indolines in a one-pot process.
The synthesis and structure of a unique asymmetric folded binuclear anionic complex palladium containing two different hydrazonato ligands showing Pd−N(amido) bond cis to Pd−C(aryl) is described.
Abstract The reaction of the complex [Pd(κ 3 ‐NN′O)CH ] [NN′O = 2‐Py‐CH=N‐( o ‐C 6 H 4 )O – ( 1a ) with nitromethane affords a mixture 2a and 2b . In this methylation ligand takes place. These complexes display exchange equilibrium in solution. is proposed to occur through nucleophilic attack nitronate anion on iminic carbon atom. DFT calculations are presented order support part mechanism these show that participation water migration proton important. crystal structure derivative...