Search Results - "SPEK, Anthony L."

checkCIF validation ALERTS: what they mean and how to respond by Spek, Anthony L

“…Authors of a paper that includes a new crystal-structure determination are expected to not only report the structural results of inter-est and their…”
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Structure validation in chemical crystallography by Spek, Anthony L.

“…Automated structure validation was introduced in chemical crystallography about 12 years ago as a tool to assist practitioners with the exponential growth in…”
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Determination of absolute structure using Bayesian statistics on Bijvoet differences by Hooft, Rob W. W., Straver, Leo H., Spek, Anthony L.

“…A new probabilistic approach is introduced for the determination of the absolute structure of a compound which is known to be enantiopure based on Bijvoet‐pair…”
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PLATON SQUEEZE: a tool for the calculation of the disordered solvent contribution to the calculated structure factors by Spek, Anthony L.

“…The completion of a crystal structure determination is often hampered by the presence of embedded solvent molecules or ions that are seriously disordered…”
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IPr an easily accessible highly hindered N-heterocyclic carbene by Berthon-Gelloz, Guillaume, Siegler, Maxime A, Spek, Anthony L, Tinant, Bernard, Reek, Joost N H, Markó, István E

“…Herein, we wish to describe the efficient three-step synthesis of a novel highly hindered, but flexible, N-heterocyclic carbene and its coordination chemistry…”
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What makes a crystal structure report valid? by Spek, Anthony L.

“…[Display omitted] Single crystal X-ray crystallography has developed into a unique, highly automated and accessible tool to obtain detailed information on…”
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Construction of Adjacent Quaternary and Tertiary Stereocenters via an Organocatalytic Allylic Alkylation of Morita-Baylis-Hillman Carbonates by van Steenis, Dirk Jan V. C., Marcelli, Tommaso, Lutz, Martin, Spek, Anthony L., van Maarseveen, Jan H., Hiemstra, Henk

“…Racemic Baylis–Hillman carbonates can be converted in densely functionalized products by reaction with cyano esters in the presence of a catalytic amount of a…”
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Highly Selective Hydrocyanation of Butadiene toward 3-Pentenenitrile by Bini, Laura, Müller, Christian, Wilting, Jos, von Chrzanowski, Lars, Spek, Anthony L, Vogt, Dieter

“…A triptycene-based diphosphine ligand was synthesized in good yield following a new route. The corresponding Pt(II)- and Ni(0)-complexes were characterized. In…”
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Influence of Sample Preparation, Temperature, Light, and Pressure on the Two-Step Spin Crossover Mononuclear Compound [Fe(bapbpy)(NCS)2] by Bonnet, Sylvestre, Molnár, Gábor, Sanchez Costa, José, Siegler, Maxime A, Spek, Anthony L, Bousseksou, Azedine, Fu, Wen-Tian, Gamez, Patrick, Reedijk, Jan

“…The three phases of the mononuclear two-step spin crossover compound [Fe(bapbpy)(NCS)2] (1) are characterized by powder X-ray diffraction, Mössbauer…”
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NCN-Pincer Metal Complexes (Ti, Cr, V, Zr, Hf, and Nb) of the Phebox Ligand (S,S)-2,6-Bis(4′-isopropyl-2′-oxazolinyl)phenyl by Chuchuryukin, Alexey V, Huang, Rubin, Lutz, Martin, Chadwick, John C, Spek, Anthony L, van Koten, Gerard

“…Reaction of (S,S)-2,6-bis(4′-isopropyl-2′-oxazolinyl)phenyllithium (i-Pr-Phebox-Li) (2a) with 4,4′-bis[P-(chlorogold(I))diphenylphosphino]biphenyl…”
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Catalyst selection based on intermediate stability measured by mass spectrometry by Wassenaar, Jeroen, Jansen, Eveline, van Zeist, Willem-Jan, Bickelhaupt, F. Matthias, Siegler, Maxime A., Spek, Anthony L., Reek, Joost N. H.

“…The power of natural selection through survival of the fittest is nature's ultimate tool for the improvement and advancement of species. To apply this concept…”
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Highly Selective Cobalt-Catalyzed Hydrovinylation of Styrene by Grutters, Michiel M. P., van der Vlugt, Jarl Ivar, Pei, Yuxin, Mills, Allison M., Lutz, Martin, Spek, Anthony L., Müller, Christian, Moberg, Christina, Vogt, Dieter

“…Phosphine complexes of cobalt halide salts activated by diethylaluminum chloride are shown to yield highly active catalysts in the hydrovinylation of styrene,…”
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Organoplatinum crystals for gas-triggered switches by van Koten, Gerard, Albrecht, Martin, Lutz, Martin, Spek, Anthony L

“…Considerable effort is being devoted to the fabrication of nanoscale devices. Molecular machines, motors and switches have been made, generally operating in…”
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Diphosphinine Derivatives of Terpyridine: A New Class of Neutral π-Accepting PNP-Pincer Ligands by Müller, Christian, Pidko, Evgeny A., Lutz, Martin, Spek, Anthony L., Vogt, Dieter

“…The first diphosphinine analogue of terpyridine has been developed, which represents a new class of π‐accepting neutral PNP‐pincer ligands. Its electronic…”
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Phenanthroline Derivatives with Improved Selectivity as DNA-Targeting Anticancer or Antimicrobial Drugs by Roy, Sudeshna, Hagen, Katharine D., Maheswari, Palanisamy Uma, Lutz, Martin, Spek, Anthony L., Reedijk, Jan, van Wezel, Gilles P.

“…Phenanthroline derivatives are of interest due to their potential activity against cancer, and viral, bacterial, and fungal infections. In a search for highly…”
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Donor-Functionalized Polydentate Pyrylium Salts and Phosphinines: Synthesis, Structural Characterization, and Photophysical Properties by Müller, Christian, Wasserberg, Dorothee, Weemers, Jarno J. M., Pidko, Evgeny A., Hoffmann, Sandra, Lutz, Martin, Spek, Anthony L., Meskers, Stefan C. J., Janssen, René A. J., van Santen, Rutger A., Vogt, Dieter

“…A series of donor‐functionalized pyrylium salts have been prepared by classical condensation reactions which were further converted into the corresponding…”
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Asymmetric Hydrogenation with Highly Active IndolPhos-Rh Catalysts: Kinetics and Reaction Mechanism by Wassenaar, Jeroen, Kuil, Mark, Lutz, Martin, Spek, Anthony L., Reek, Joost N. H.

“…The mechanism of the IndolPhos–Rh‐catalyzed asymmetric hydrogenation of prochiral olefins has been investigated by means of X‐ray crystal structure…”
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Unique Ligand-Based Oxidative DNA Cleavage by Zinc(II) Complexes of Hpyramol and Hpyrimol by Maheswari, Palanisamy Uma, Barends, Sharief, Özalp-Yaman, Seniz, de Hoog, Paul, Casellas, Hélène, Teat, Simon J., Massera, Chiara, Lutz, Martin, Spek, Anthony L., van Wezel, Gilles P., Gamez, Patrick, Reedijk, Jan

“…The zinc(II) complexes reported here have been synthesised from the ligand 4‐methyl‐2‐N‐(2‐pyridylmethyl)aminophenol (Hpyramol) with chloride or acetate…”
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Iron(II) Complexes with Bio-Inspired N,N,O Ligands as Oxidation Catalysts: Olefin Epoxidation and cis-Dihydroxylation by Bruijnincx, Pieter C. A., Buurmans, Inge L. C., Gosiewska, Silvia, Moelands, Marcel A. H., Lutz, Martin, Spek, Anthony L., van Koten, Gerard, Klein Gebbink, Robertus J. M.

“…The Rieske dioxygenases are a group of non‐heme iron enzymes, which catalyze the stereospecific cis‐dihydroxylation of its substrates. Herein, we report the…”
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N-donor functionalized N-heterocyclic carbene nickel(II) complexes in the Kumada coupling by Berding, Joris, van Dijkman, Thomas F, Lutz, Martin, Spek, Anthony L, Bouwman, Elisabeth

“…The synthesis and characterization of novel nickel(II) complexes bearing two bidentate N-heterocyclic carbene ligands functionalized with anionic N-donor…”
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