While post-mortem angiography (PMA) is gradually establishing its role in Forensic Radiology, the available literature in Italy lacks a solid foundation, particularly regarding its use in criminal court proceedings. An illustrative example of multiphase post-mortem CT angiography (MPMCTA) is presented here to encourage the systematic implementation of PMA methods. To demonstrate concordance between MPMCTA and the reference standard (autopsy and histology) in a case of acute coronary thrombosis, we report a case where MPMCTA, autopsy, histological and toxicological analyses were performed on a previously healthy 51-year-old man.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
February 2010
High-yield reactions of the pentafluoride complexes MF(5) (M = Nb, Ta) with a variety of diethers, ROCH(2)CH(R')OR'', afford the ionic derivatives [MF(4){kappa(2)-ROCH(2)CH(R')OR''}(2)][MF(6)] (2a-2e) or [MF(4){ROCH(2)CH(R')OR''}(2)][M(2)F(11)] (3a-3f) according to the metal/diether ratio employed. The structures of [MF(4)(kappa(2)-dme)(2)][MF(6)] [M = Nb (2a), Ta (2b); dme = MeOCH(2)CH(2)OMe] have been determined by X-ray diffraction. Moreover, the structure of the cationic part of 2a in the gas phase has been optimized by density functional theory calculations (the B3LYP/LANL2DZ method).
View Article and Find Full Text PDFThe effect of ionic liquids (ILs) on the Menschutkin reaction between N-methylimidazole and benzyl halides has been investigated. Hammett correlations have been used to obtain information on the reaction mechanism of benzyl chlorides in ionic and molecular solvents. The solvent effects on this reaction have been examined using both multiparameter linear solvation energy relationships and theoretical calculations.
View Article and Find Full Text PDFThe Diels-Alder reaction between cyclopentadiene and three dienophiles (acrolein, methyl acrylate and acrylonitrile) having different hydrogen bond acceptor abilities has been carried out in several ionic liquids and molecular solvents in order to obtain information about the factors affecting reactivity and selectivity. The solvent effects on these reactions are examined using multiparameter linear solvation energy relationships. The collected data provide evidence that the solvent effects are a function of both the solvent and the solute.
View Article and Find Full Text PDFElectrospray ionization mass spectrometry applied to ionic liquids allowed the study of loosely bonded supramolecules, originating from these organic salts. Based on the observation that ionic liquids formed cationic [C(q+1)X(q)](+) and anionic [C(q)X(q+1)](-) supramolecular aggregates, we have investigated mixed networks, formed by different cations coordinated to a selected anion or by different anions bonded to a given cation, i.e.
View Article and Find Full Text PDFImidazolium ionic liquids containing [Tf2N]- anion are not as innocent as they are often considered; [Tf2N]- is more reactive than Br- in heterolytic dediazoniation reactions.
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