Enzymes exist as ensembles of conformations that are important for function. Tuning these populations of conformational states through mutation enables evolution toward novel activity. In the paper published in ACS Catalysis, Adrian Romero-Rivera, Marc Garcia-Borràs, and Sílvia Osuna describe a “shortest path map” tool based on inter-residue correlations along microsecond-scale MD simulations that is able
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Site-selective C-H functionalization of aliphatic alkyl chains is a longstanding challenge in oxidation catalysis, given the comparable relative reactivity of the different methylenes. A supramolecular, bioinspired approach is described to address this challenge. A Mn complex able to catalyze C(sp3)-H hydroxylation with H2O2 is equipped with 18-benzocrown-6 ether receptors that bind ammonium substrates via hydrogen bonding.
A few weeks ago for the first time an IQCC-related paper appeared in Nature, with the publication of “Discovery of a selective catalytic p300/CBP inhibitor that targets lineage-specific tumours”, with Maricel Torrent as one of the authors. Maricel defended her PhD thesis “On the mechanisms of Transition-Metal Catalyzed Model Reactions of Industrial and Synthetic Importance:
A group of chemists from the Universidad Complutense de Madrid lead by Prof. Nazario Martín and from the University of Southampton lead by Prof. Richard J. Whitby together with the IQCC members Sílvia Osuna, Miquel Solà, and Marc Garcia-Borràs (ex-member of the IQCC, now in UCLA) have reported the first chemical modification on the endohedral
Today Teresa Corona and Anna Company reported in Anales de Química on metal-imido species, including the Cover picture by them. The corresponding paper (in Spanish) can be found here: Teresa Corona Prieto, Anna Company Casadevall “Especies metal-imido de alta valencia con metales tardíos de la primera serie de transición” An. Quím. 2017, 162-169
Today Prof. Marcel Swart received a special award from the Serbian Chemical Society for his continuous support for advancing chemical sciences in Serbia. The award was given in Belgrade at the Annual Meeting of the Serbian Chemical Society in honor of 120 years of the Society. The prize was handed out by the division manager
The sluggish oxidants, [FeIV(O)(TMC)(CH3CN)] 2+ (TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane) and [FeIV(O)(d12-TMCN)(OTf)] + (3d; d12-TMCN = 1,4,7,11-tetra-d3-methyl-1,4,7,11-tetraazacyclotetradecane), are transformed into a highly reactive oxidant, [FeIV(O)(TMCO)(OTf)] + (1; TMCO = 4,8,12-trimethyl-1-oxa-4,8,12-triazacyclotetradecane), upon replacement of a -NMe donor in the TMC and TMCN ligands by an O-atom. A rate enhancement of 5 – 6 orders of magnitude in both
Today for the first time an IQCC-related paper appeared in Science, with the publication of “Angular momentum–induced delays in solid-state photoemission enhanced by intra-atomic interactions”, with Miquel Torrent-Sucarrat as one of the authors. Miquel defended his PhD thesis “Desenvolupament, implementació i aplicació de noves metodologies per a l’estudi de la reactivitat química i de les
Herein we describe the synthesis of a family of aryl-Co(III)-carboxylate complexes and their reactivity with ethyl diazoacetate. Crystallographic, full spectroscopic characterization, and theoretical evidence of unique C-metalated aryl-Co(III) enolate intermediates is provided, unraveling a carboxylate-assisted formation of aryl-Co(III) masked-carbenes. Moreover, additional evidence for an unprecedented Co(III)-mediated intramolecular SN2-type C–C bond formation in which the carboxylate