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Keywords: Synthesis (a manual on organometallics in synthesis); Organometallic compounds Role: RCT (Reactant) ; RACT (Reactant or reagent) (a manual on organometallics in synthesis) ; book organometallic compd synthesis Note: CAN 122:56197 29-1 Organometallic and Organometalloidal Compounds UK. Book written in English. Reference LSCO-BOOK-1994-001 Record created on 2006-03-03, modified on 2016-08-08
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTAdvances in Transition Metal (Pd,Ni,Fe)-Catalyzed Cross-Coupling Reactions Using Alkyl-organometallics as Reaction PartnersRanjan Jana, Tejas P. Pathak, and Matthew S. Sigman*View Author Information Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8500, United States*E-mail: [email protected]Cite this: Chem. Rev. 2011, 111, 3, 1417–1492Publication Date (Web):February 14, 2011Publication History Received26 September 2010Published online14 February 2011Published inissue 9 March 2011https://pubs.acs.org/doi/10.1021/cr100327phttps://doi.org/10.1021/cr100327preview-articleACS PublicationsCopyright © 2011 American Chemical SocietyRequest reuse permissionsArticle Views59492Altmetric-Citations1857LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose SUBJECTS:Alkyls,Anions,Chemical reactions,Cross coupling reaction,Reagents Get e-Alerts
Since the first reports in the late 1970s on transition metal complexes containing pincer-type ligands—named after the particular coordination mode of these ligands—these systems have attracted increasing interest owing to the unusual properties of the metal centers imparted by the pincer ligand. Typically, such a ligand comprises an anionic aryl ring which is ortho,ortho-disubstituted with heteroatom substituents, for example, CH2NR2, CH2PR2 or CH2SR, which generally coordinate to the metal center, and therefore support the M−C σ bond. This commonly results in a terdentate and meridional coordination mode consisting of two metallacycles which share the M−C bond. Detailed studies of the formation and the properties of a large variety of pincers containing platinum group metal complexes have provided direct access to both a fundamental understanding of a variety of reactions in organometallic chemistry and to a range of new applications of these complexes. The discovery of alkane dehydrogenation catalysts, the mechanistic elucidation of fundamental transformations (for example, C−C bond activation), the construction of the first metallodendrimers for sustainable homogeneous catalysis, and the engineering of crystalline switches for materials processing represent only a few of the many highlights which have emanated from these numerous investigations. This review discusses the synthetic methodologies that are currently available for the preparation of platinum group metal complexes containing pincer ligands and especially emphasizes different applications that have been realized in materials science such as the development and engineering of sensors, switches, and catalysts.
Further enhancing the performance and stability of inverted perovskite solar cells (PSCs) is crucial for their commercialization. We report that the functionalization of multication and halide perovskite interfaces with an organometallic compound, ferrocenyl-bis-thiophene-2-carboxylate (FcTc 2 ), simultaneously enhanced the efficiency and stability of inverted PSCs. The resultant devices achieved a power conversion efficiency of 25.0% and maintained >98% of their initial efficiency after continuously operating at the maximum power point for 1500 hours under simulated AM1.5 illumination. Moreover, the FcTc 2 -functionalized devices passed the international standards for mature photovoltaics (IEC61215:2016) and have exhibited high stability under the damp heat test (85°C and 85% relative humidity).
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComprehensive Organometallic ChemistryDietmar SeyferthCite this: Organometallics 1984, 3, 7, 1135Publication Date (Print):July 1, 1984Publication History Published online7 January 2004Published inissue 1 July 1984https://pubs.acs.org/doi/10.1021/om00085a900https://doi.org/10.1021/om00085a900research-articleACS PublicationsRequest reuse permissionsArticle Views337Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSteric effects of phosphorus ligands in organometallic chemistry and homogeneous catalysisChadwick A. TolmanCite this: Chem. Rev. 1977, 77, 3, 313–348Publication Date (Print):June 1, 1977Publication History Published online1 May 2002Published inissue 1 June 1977https://pubs.acs.org/doi/10.1021/cr60307a002https://doi.org/10.1021/cr60307a002research-articleACS PublicationsRequest reuse permissionsArticle Views37168Altmetric-Citations4177LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Tables of 1 H and 13 C NMR chemical shifts have been compiled for common organic compounds often used as reagents or found as products or contaminants in deuterated organic solvents. Building upon the work of Gottlieb, Kotlyar, and Nudelman in the Journal of Organic Chemistry, signals for common impurities are now reported in additional NMR solvents (tetrahydrofuran- d 8, toluene- d 8, dichloromethane- d 2, chlorobenzene- d 5, and 2,2,2-trifluoroethanol- d 3 ) which are frequently used in organometallic laboratories. Chemical shifts for other organics which are often used as reagents or internal standards or are found as products in organometallic chemistry are also reported for all the listed solvents.
N-Heterocyclic carbenes have become universal ligands in organometallic and inorganic coordination chemistry. They not only bind to any transition metal, be it in low or high oxidation states, but also to main group elements such as beryllium, sulfur, and iodine. Because of their specific coordination chemistry, N-heterocyclic carbenes both stabilize and activate metal centers in quite different key catalytic steps of organic syntheses, for example, C-H activation, C-C, C-H, C-O, and C-N bond formation. There is now ample evidence that in the new generation of organometallic catalysts the established ligand class of organophosphanes will be supplemented and, in part, replaced by N-heterocyclic carbenes. Over the past few years, this chemistry has been the field of vivid scientific competition, and yielded previously unexpected successes in key areas of homogeneous catalysis. From the work in numerous academic laboratories and in industry, a revolutionary turning point in oraganometallic catalysis is emerging.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIonic Liquid (Molten Salt) Phase Organometallic CatalysisJairton Dupont, Roberto F. de Souza, and Paulo A. Z. SuarezView Author Information Laboratory of Molecular Catalysis, Institute of Chemistry, UFRGS, Av. Bento Gonçalves, 9500 Porto Alegre 91501-970, RS, Brazil Cite this: Chem. Rev. 2002, 102, 10, 3667–3692Publication Date (Web):August 21, 2002Publication History Received30 January 2002Published online21 August 2002Published inissue 1 October 2002https://pubs.acs.org/doi/10.1021/cr010338rhttps://doi.org/10.1021/cr010338rresearch-articleACS PublicationsCopyright © 2002 American Chemical SocietyRequest reuse permissionsArticle Views18909Altmetric-Citations3445LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose SUBJECTS:Anions,Catalysts,Precursors,Salts,Solvents Get e-Alerts
In recent years, the olefin metathesis reaction has attracted widespread attention as a versatile carbon-carbon bond-forming method. Many new applications have become possible because of major advances in catalyst design. State-of-the-art ruthenium catalysts are not only highly active but also compatible with most functional groups and easy to use. This Account traces the ideas and discoveries that were instrumental in the development of these catalysts, with particular emphasis on (PCy3)2Cl2Ru=CHPh and its derivatives. The discussion includes an analysis of trends in catalyst activity, a description of catalysts coordinated with N-heterocyclic carbene ligands, and an overview of ongoing work to improve the activity, stability, and selectivity of this family of L2X2Ru=CHR complexes.
Solar cells based on organometallic halide perovskite absorber layers are emerging as a high-performance photovoltaic technology. Using highly sensitive photothermal deflection and photocurrent spectroscopy, we measure the absorption spectrum of CH3NH3PbI3 perovskite thin films at room temperature. We find a high absorption coefficient with particularly sharp onset. Below the bandgap, the absorption is exponential over more than four decades with an Urbach energy as small as 15 meV, which suggests a well-ordered microstructure. No deep states are found down to the detection limit of ∼1 cm(-1). These results confirm the excellent electronic properties of perovskite thin films, enabling the very high open-circuit voltages reported for perovskite solar cells. Following intentional moisture ingress, we find that the absorption at photon energies below 2.4 eV is strongly reduced, pointing to a compositional change of the material.
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General Properties of Organometallic Complexes The Metal-Carbon and Metal-Hydrogen Bonds Ligand Substitution Reactions Complexes of Pi-Bound Ligands Oxidative Addition and Reductive Elimination Insertion and Elimination Nucleophilic and Electrophilic Addition and Abstraction Homogeneous Catalysis Characterization of Organometallic Compounds Carbenes, Metathesis and Polymerization The Activation of Small Molecules Clusters and the Metal-Metal Bond Applications to Organic Synthesis Oxidation and High-Oxidation-State Complexes Bioorganometallic Chemistry Solutions to Problems.
ADVERTISEMENT RETURN TO ISSUEArticleNEXTOrganometallic Chemistry on Silicon and Germanium SurfacesJillian M. BuriakView Author Information Department of Chemistry, 1393 Brown Laboratories, Purdue University, West Lafayette, Indiana 47907-1393 Cite this: Chem. Rev. 2002, 102, 5, 1271–1308Publication Date (Web):March 8, 2002Publication History Received10 July 2001Published online8 March 2002Published inissue 1 May 2002https://pubs.acs.org/doi/10.1021/cr000064shttps://doi.org/10.1021/cr000064sresearch-articleACS PublicationsCopyright © 2002 American Chemical SocietyRequest reuse permissionsArticle Views11386Altmetric-Citations1570LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose SUBJECTS:Hydrocarbons,Hydrosilylation,Monolayers,Porous materials,Silicon Get e-Alerts
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ADVERTISEMENT RETURN TO ISSUEPREVPerspectiveNEXTOrganometallic Anticancer CompoundsGilles Gasser*†§, Ingo Ott*‡, and Nils Metzler-Nolte*§View Author Information† Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland‡ Institute of Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany§ Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany*To whom correspondence should be addressed. For G.G.: phone, +41(0)44 635-4611; fax, +41(0)44 635-6803; e-mail, [email protected]; Web page, www.gassergroup.com. For I.O.: phone, +49 (0)531-391 2743; fax, +49 (0)531-391 8456; e-mail, [email protected]; Web page, www.pharmchem.tu-bs.de/forschung/ott/. For N.M.-N.: phone, +49 (0)234-32 28152; fax, +49 (0)234-32 14378; e-mail, [email protected]; Web page, www.chemie.rub.de/ac1.Cite this: J. Med. Chem. 2011, 54, 1, 3–25Publication Date (Web):November 15, 2010Publication History Received8 January 2010Published online15 November 2010Published inissue 13 January 2011https://doi.org/10.1021/jm100020wCopyright © 2010 American Chemical SocietyRIGHTS & PERMISSIONSACS AuthorChoiceArticle Views34024Altmetric-Citations1313LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (3 MB) Get e-AlertscloseSUBJECTS:Genetics,Ligands,Metals,Reaction products,Sandwich compounds Get e-Alerts
FUNDAMENTALS OF SILICON REACTIVITY: REACTIVE INTERMEDIATES AND REACTION MECHANISMS. Organosilanes: Where to Find Them, What to Call Them, How to Detect Them. Atomic and Molecular Properties of Silicon. Silicon-Based Reactive Intermediates. Extracoordination at Silicon. Reaction Mechanisms for Nucleophilic Substitution at Silicon. THE FORMATION AND CLEAVAGE OF NON-CARBON BONDS TO SILICON: APPLICATIONS IN ORGANIC AND POLYMER CHEMISTRY. Silicon and Transition Metal Chemistry. Hydrosilanes as Reducing Agents. Replacing H with Si: Silicon-Based Reagents. Silicones. Siloxanes Based on T and Q Units. Other Silicon-Containing Polymers. THE FORMATION AND CLEAVAGE OF SILICON-CARBON BONDS: APPLICATIONS IN ORGANIC SYNTHESIS. Formation of Si-C Bonds: The Synthesis of Functional Organosilanes. Silicon in a Biological Environment. Silicon in the Organic World: Electronic Effects of Silyl Groups. Rearrangements. Cleavage of Si-C Bonds. Indices of Functional Group Transformations. Subject Index.
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New approaches to synthesize photostable thiol-capped CdTe nanocrystals are reported. Post-preparative size-selective precipitation and selective photochemical etching have been developed as methods providing an increase of photoluminescence quantum efficiency of the nanocrystals of up to 40%. Some advantages of thiol-capping in comparison to conventional organometallic syntheses of quantum dots are discussed.
Abstract Magnets composed of molecular species or polymers and prepared by relatively low‐temperature organic synthetic methodologies are a focus of contemporary materials science research. The anticipated properties of such molecular‐species‐based magnetic materials, particularly in combination with other properties associated with molecules and polymers, may enable their use in future generations of electronic, magnetic, and/or photonic/photronic devices ranging from information storage and magnetic imaging to static and low‐frequency magnetic shielding. A tutorial of typical magnetic behavior of molecular materials is presented. The three distinct models (intramolecular spin coupling through orthogonal orbitals in the same spatial region within a molecule/ion, intermolecular spin coupling through pairwise “configuration interaction” between spin‐containing moieties, and dipole—dipole, through‐space interactions) which enable the design of new molecular‐based magnetic materials are discussed. To achieve the required spin couplings for bulk ferro‐ or ferrimagnetic behavior it is crucial to prepare materials with the necessary primary, secondary, and tertiary structures akin to proteins. Selected results from the worldwide effort aimed at preparing molecular‐based magnetic materials by these mechanisms are described. Some organometallic solids comprised of linear chains of alternating metallocenium donors (D) and cyanocarbon acceptors (A) that is, …︁D •+ A •− D •+ A •− …︁, exhibit cooperative magnetic phenomena. Bulk ferromagnetic behavior was first observed below the critical (Curie) temperature T c of 4.8 K for [Fe III (C 5 Me 5 ) 2 ] •+ [TCNE] •− (Me = methyl; TCNE = tetracyanoethylene). Replacement of Fe III with Mn III leads to a ferromagnet with a T c of 8.8 K in agreement with mean‐field models developed for this class of materials. Replacement with Cr III , however, leads to a ferromagnet with a T c lowered to 3.65 K which is at variance with this model. Extension to the reaction of a vanadium(o) complex with TCNE leads to the isolation of a magnet with a T c ≈ 400 K, which exceeds the thermal decomposition temperature of the material. This demonstrates that a magnetic material with a T c substantially above room temperature is achievable in a molecule/organic/polymeric material. Finally, a new class of one‐dimensional ferrimagnetic materials based on metalloporphins is discussed.