A5069663347- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Metal complexes synthesis and properties
- Atomic and Molecular Physics
- Crystallography and molecular interactions
- Crystal structures of chemical compounds
- DNA and Nucleic Acid Chemistry
- Ion-surface interactions and analysis
- X-ray Spectroscopy and Fluorescence Analysis
- Magnetism in coordination complexes
- Mass Spectrometry Techniques and Applications
- Laser-induced spectroscopy and plasma
- Nuclear physics research studies
- Muon and positron interactions and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Molecular Sensors and Ion Detection
- Advanced Chemical Physics Studies
- Synthesis and Characterization of Heterocyclic Compounds
- Ferrocene Chemistry and Applications
- Chromium effects and bioremediation
- Lanthanide and Transition Metal Complexes
- Laser-Matter Interactions and Applications
- Chemical Synthesis and Analysis
- Organometallic Complex Synthesis and Catalysis
- Particle accelerators and beam dynamics
Universitat de les Illes Balears
2013-2022
Bariloche Atomic Centre
2005-2020
Fundació Universitat-Empresa de les Illes Balears
1989-2020
Consejo Nacional de Investigaciones Científicas y Técnicas
2006-2020
Clinica Rotger
2017
Comisión Nacional de Energía Atómica
2000-2015
Centro Científico Tecnológico - San Juan
2008-2014
Balseiro Institute
2000-2013
Universidad Nacional de Cuyo
2003-2013
Research Institute of Health Sciences
2009-2010
In this manuscript we report a high-level ab initio study of anion-pi interactions involving N9-methyl-adenine, N6-methyl-adenine, N9-methyl-hypoxanthine, dimer and N9,N9'-trimethylene-bisadenine. DNA bases like adenine are electron-deficient arenes that well suited for interacting favorably with anions. We demonstrate these compounds able to interact N9-Methyl-adenine, the N9-methyl-adenine anion via six-membered ring more strongly than due cooperativity effects between noncovalent pi-pi...
The synthesis of a metalled double-helix containing exclusively silver-mediated C*-C* base pairs is reported herein (C*=N1 hexylcytosine). Remarkably, it the first crystal structure infinite and consecutive C*-AgI -C* that form double helix. AgI ion occupies center between two C* residues with N(3)-Ag bond lengths 2.1 Å short -AgI distances (3.1 Å) suggesting an interesting argentophilic attraction as stabilization source helical disposition. solid-state further stabilized by metal-mediated...
Herein we report the synthesis and X-ray characterization of a gold(iii) complex 1-hexylcytosine via N(3). The AuCl3N complexes stack on top each other by reciprocal [AuCl] regium bonding interactions. After first example 35 years ago, this is second available structure cytosine nucleobase model complexed to gold(iii).
We describe recent experimental triple-differential cross sections of ionization by the impact both protons and positrons means a single, kinematically exact theory. This model incorporates all interactions in final state on an equal footing keeps account three-body kinematics. show that these provisions make it possible to evaluate any multiple-differential section for given mass configuration, analyse how changes with relative masses three particles state. differences electron cusp...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of nickel(II) complexes purine pyrimidine bases. Crystal molecular structure trans-bis(cytosine-O2)bis(ethylenediamine)nickel(II) bis(tetraphenylborate). An unusual metal binding mode cytosineGemma Cervantes, Juan J. Fiol, Angel Terron, Virtudes Moreno, R. Alabart, Magdalena Aguilo, Montserrat Gomez, Xavier SolansCite this: Inorg. Chem. 1990, 29, 26, 5168–5173Publication Date (Print):December 1, 1990Publication...
In this manuscript, we report the synthesis and solid-state characterization of five new compounds based on 2-aminopyrimidine building block. Some them exhibit interesting anion-π interactions. addition, a high level ab initio study interactions involving 2-methylaminopyrimidine its dimer. We demonstrate that these are able to interact favorably with anions. The dimer interacts anion more strongly than monomer due cooperativity effects between noncovalent hydrogen bonding This pattern, is,...
In this manuscript, we report the synthesis and X-ray characterization of two new Au(III)-cytosine systems: AuCl3(CytC6) (1) (HCytC6)2[AuCl4]Cl (2), where CytC6 is N1-hexylcytosine. Compound 1 an inner sphere...
Fully differential cross sections for single ionization of helium induced by impact 100 MeV/u C 6+ ions are examined within a quantum-mechanical distorted wave model.The experimental uncertainties included in the theoretical calculations, leading to quantitative description sections.In particular, section electron emitted plane perpendicular scattering is reproduced first time full role internuclear interaction this perturbative-regime collision discussed and found be unimportant present...
Abstract We report the synthesis and X‐ray characterization of an N , N′ ‐tetramethylenebis(2‐aminopyrimidinium) tetrafluoroborate salt that exhibits anion–π interactions are responsible for crystal packing. The anion forms a sandwich complex with two pyrimidine rings. When is nitrate, packing governed by hydrogen bonds, not formed. Finally, theoretical study in charged rings good agreement experimental findings. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Five Cu(<sc>ii</sc>), Co(<sc>ii</sc>) and Ni(<sc>ii</sc>) complexes with 2-(<italic>N</italic>-benzimidazolyl)-pyrimidine nitrate co-ligands have been synthesized characterized by X-ray diffraction.
Five new compounds have been synthesized and characterized by elemental analysis, IR, NMR single-crystal X-ray diffraction. They present interesting assemblies in the solid state dominated H-bonding anion–π interactions.
The presence of vortices in the ionization hydrogen atoms by positrons at intermediate impact energies is investigated. present findings show that a previously reported minimum fully differential cross section signature vortex continuum positron–electron–proton system. behaviour real and imaginary parts complex-valued transition matrix studied order to determine characterize momentum space. obtained information translated sections, feasible being measured with currently available techniques.
The synthesis and X-ray characterization of an unprecedented complex Ag(<sc>i</sc>) with cytidine-5′-monophosphate (HCMP) is reported. coordination to HCMP <italic>via</italic> both the N3 O2 atoms two cytosine moieties phosphate group, generating a MOF.
The monomeric [M(ACV)2(H2O)4]Cl2·2ACV (M = NiII 1 or CoII 2), [Zn(ACV)Cl2(H2O)] 3 and the polymeric [Cd(ACV)Cl2]·H2O 4 [ACV acyclovir 9-(2-hydroxymethoxymethyl)guanine] complex have been prepared characterised by X-ray diffraction IR data; 1H 13C NMR used to interpret structural characteristics of complexes in solution. Compounds 2 exist as octahedral with four H2O ligands basal plane [Ni–OW 2.053(2) 2.057(7) Å] two axial ACV molecules linked Ni through N(7) [Ni–N(7) 2.160(2) Å]. Two...