Calix[4]pyrrolato gallate: square planar-coordinated gallium(iii) and its metal-ligand cooperative reactivity with CO2 and alcohols

Article Chemistry, Multidisciplinary

The inversion of tetrahedral p-block element compounds: general trends and the relation to the second-order Jahn-Teller effect

Lukas M. Sigmund et al.

Summary: This study investigates the configurational inversion of tetrahedral compounds and reveals surprisingly low inversion barriers, while also developing a model to understand and predict the angular flexibility of tetrahedral species.

CHEMICAL SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Calix[4]pyrrolato Aluminates: The Effect of Ligand Modification on the Reactivity of Square-Planar Aluminum Anions

Fabian Ebner et al.

Summary: The study investigated the properties of square-planar aluminum anions and the impact of ligand modification through a systematic screening process. The results revealed that different ligand structures can lead to opposing trends in the coordination preferences of aluminum anions, potentially allowing for mode-selective binding in catalytic reactions for control of reaction rates.

CHEMISTRY-A EUROPEAN JOURNAL (2021)

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Article Chemistry, Multidisciplinary

Partnering a Three-Coordinate Gallium Cation with a Hydroborate Counter-Ion for the Catalytic Hydrosilylation of CO2

Alexa Caise et al.

Summary: A novel gallium hydride has been synthesized and shown to insert carbon dioxide into the Ga-H bond under mild conditions, catalyzing the reductive hydrosilylation of CO2 when combined with B(C6F5)3. The catalytic system exhibits enhanced activity in the presence of excess B(C6F5)3, but with reduced selectivity.

CHEMISTRY-A EUROPEAN JOURNAL (2021)

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Article Chemistry, Multidisciplinary

Reversible Addition of Carbon Dioxide to Main Group Metal Complexes at Temperatures about 0 °C

Tatyana S. Koptseva et al.

Summary: The reaction of the dialane with carbon dioxide produces two different products depending on the solvent used, with cycloadduct formed in toluene and oxo-bridged carbamato derivative in diethyl ether. DFT and QTAIM calculations explain the reversible formation of complex 2, with low activation barrier transition states identified. The study also highlights the crucial role of diethyl ether coordination to aluminum in the reaction with CO2, leading to the irreversible formation of product 3.

CHEMISTRY-A EUROPEAN JOURNAL (2021)

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Article Chemistry, Multidisciplinary

Dioxygen Activation and Pyrrole α-Cleavage with Calix[4]pyrrolato Aluminates: Enzyme Model by Structural Constraint

Lukas Maximilian Sigmund et al.

Summary: This work investigates the reaction of triplet dioxygen with porphyrinogenic calix[4]pyrrolato aluminates, revealing the mechanism of the spin-forbidden process. A comparison with dioxygen-related enzymology highlights the significance of structural constraint and element-ligand cooperativity for studying the functions of aerobic life.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Inorganic & Nuclear

31P NMR Chemical Shift Tensors: Windows into Ruthenium Phosphinidene Complex Electronic Structures

Wesley J. Transue et al.

Summary: A series of octamethylcalix[4]pyrrole/ruthenium phosphinidene complexes were synthesized, and their P-31 chemical shifts were studied using solid-state nuclear magnetic resonance spectroscopy and density functional theory. The results revealed that the degree of deshielding controls the isotropic chemical shifts of P-31 in the complexes, which is related to the local ruthenium/phosphorus electronic structure.

INORGANIC CHEMISTRY (2021)

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Article Chemistry, Multidisciplinary

An isolable, crystalline complex of square-planar silicon(IV)

Fabian Ebner et al.

Summary: This study synthesized and fully characterized the first square-planar coordinated silicon(IV), inducing a series of unconventional silicon redox chemistry and CH-agostic interactions through planarization.

CHEM (2021)

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Article Chemistry, Multidisciplinary

Calix[4]pyrroles as ligands: recent progress with a focus on the emerging p-block element chemistry

Heiko Ruppert et al.

Summary: This article reviews the synthesis and applications of calix[4]pyrroles, as well as the recent progress on complexes with s-, d-, and f-block elements. Special focus is given to calix[4]pyrrolate aluminate and silane, featuring square planar-coordinated p-block elements. The unique structures introduce valuable characteristics into main-group element chemistry.

CHEMICAL COMMUNICATIONS (2021)

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Article Chemistry, Physical

An Extensive Set of Accurate Fluoride Ion Affinities for p-Block Element Lewis Acids and Basic Design Principles for Strong Fluoride Ion Acceptors

Philipp Erdmann et al.

CHEMPHYSCHEM (2020)

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Article Chemistry, Multidisciplinary

Pyridyl CO2 Fixation Enabled by a Secondary Hydrogen Bonding Coordination Sphere

Jacqueline N. Gayton et al.

ACS OMEGA (2020)

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Article Chemistry, Multidisciplinary

Metal-Ligand Cooperativity of the Calix[4]pyrrolato Aluminate: Triggerable C-C Bond Formation and Rate Control in Catalysis

Fabian Ebner et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Review Chemistry, Inorganic & Nuclear

Element-Ligand Cooperativity with p-Block Elements

Lutz Greb et al.

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY (2020)

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Article Chemistry, Inorganic & Nuclear

Syntheses of Square Planar Gallium Complexes and a Proton NMR Correlation Probing Metalloaromaticity

Thomas M. Bass et al.

INORGANIC CHEMISTRY (2020)

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Article Chemistry, Multidisciplinary

Reversible OH-bond activation and amphoterism by metal-ligand cooperativity of calix[4]pyrrolato aluminate

Lukas M. Sigmund et al.

CHEMICAL SCIENCE (2020)

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Article Chemistry, Multidisciplinary

Gallium Shears for C=N and C=O Bonds of Isocyanates

Vladimir A. Dodonov et al.

CHEMISTRY-A EUROPEAN JOURNAL (2019)

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Article Chemistry, Inorganic & Nuclear

Rh(I) Complex with a Tridentate Pyridine-Amino-Olefin Actor Ligand-Metal-Ligand Cooperative Activation of CO2 and Phenylisocyanate under C-C and Rh-E (E = O, N) Bond Formation

Isabell Heuermann et al.

ORGANOMETALLICS (2019)

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Article Chemistry, Multidisciplinary

Calix[4]pyrrole Aluminate: A Planar Tetracoordinate Aluminum(III) Anion and Its Unusual Lewis Acidity

Fabian Ebner et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

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Article Chemistry, Multidisciplinary

Reversible CO2 fixation by N-heterocyclic imines forming water-stable zwitterionic nitrogen-base-CO2 adducts

Lukas F. B. Wilm et al.

GREEN CHEMISTRY (2019)

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Article Chemistry, Inorganic & Nuclear

CO2 activation by manganese pincer complexes through different modes of metal-ligand cooperation

Amit Kumar et al.

DALTON TRANSACTIONS (2019)

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Article Chemistry, Multidisciplinary

Cycloaddition versus Cleavage of the C=S Bond of Isothiocyanates Promoted by Digallane Compounds with Noninnocent α-Diimine Ligands

Wei Zhang et al.

CHEMISTRY-A EUROPEAN JOURNAL (2018)

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Article Chemistry, Multidisciplinary

Redox-Active Ligand-Assisted Two-Electron Oxidative Addition to Gallium(II)

Igor L. Fedushkin et al.

CHEMISTRY-A EUROPEAN JOURNAL (2018)

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Article Chemistry, Inorganic & Nuclear

CO2 activation by metal-ligand-cooperation mediated by iridium pincer complexes

Moran Feller et al.

JOURNAL OF COORDINATION CHEMISTRY (2018)

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Article Chemistry, Inorganic & Nuclear

Gallium Complexes with Acenaphthene-1-Imino-2-one: Synthesis and Reactivity

D. A. Razborov et al.

RUSSIAN JOURNAL OF COORDINATION CHEMISTRY (2018)

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Article Chemistry, Organic

Zwitterionic indenylammonium with carbon-centred reactivity towards reversible CO2 binding and catalytic reduction

Yanxin Yang et al.

ORGANIC & BIOMOLECULAR CHEMISTRY (2017)

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Article Chemistry, Inorganic & Nuclear

Rhenium(I) Triscarbonyl Complexes with Redox-Active Amino- and Iminopyridine Ligands: Metal Ligand Cooperation as Trigger for the Reversible Binding of CO2 via a Dearmomatization/Rearomatization Reaction Sequence

Rasmus Stichauer et al.

ORGANOMETALLICS (2017)

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Article Chemistry, Multidisciplinary

Stoichiometric Reactions of CO2 and Indium-Silylamides and Catalytic Synthesis of Ureas

Maotong Xu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2017)

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Article Chemistry, Multidisciplinary

Reversible Carbon Dioxide Binding by Simple Lewis Base Adducts with Electron-Rich Phosphines

Florenz Buss et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

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Article Chemistry, Physical

Implications of CO2 Activation by Frustrated Lewis Pairs in the Catalytic Hydroboration of CO2: A View Using N/Si+ Frustrated Lewis Pairs

N. von Wolff et al.

ACS CATALYSIS (2016)

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Article Chemistry, Multidisciplinary

Cooperative Bond Activation and Catalytic Reduction of Carbon Dioxide at a Group 13 Metal Center

Joseph A. B. Abdalla et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2015)

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Review Chemistry, Multidisciplinary

Four Decades of the Chemistry of Planar Hypercoordinate Compounds

Li-Ming Yang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2015)

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Article Chemistry, Multidisciplinary

Metal-Ligand Cooperation

Julia R. Khusnutdinova et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2015)

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Article Chemistry, Multidisciplinary

Reduction of CO2 by Pyridine Monoimine Molybdenum Carbonyl Complexes: Cooperative Metal-Ligand Binding of CO2

Daniel Sieh et al.

CHEMISTRY-A EUROPEAN JOURNAL (2015)

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Article Chemistry, Inorganic & Nuclear

Rapid, Reversible, Solid-Gas and Solution-Phase Insertion of CO2 into In-P Bonds

Diane A. Dickie et al.

INORGANIC CHEMISTRY (2015)

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Article Chemistry, Multidisciplinary

Synthesis of Square-Planar Aluminum(III) Complexes

Emily J. Thompson et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2014)

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Article Chemistry, Inorganic & Nuclear

Structures and CO2 Reactivity of Zinc Complexes of Bis(diisopropyl-) and Bis(diphenylphosphino)amines

Diane A. Dickie et al.

ORGANOMETALLICS (2014)

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Article Chemistry, Multidisciplinary

Reversible CO2 binding triggered by metal-ligand cooperation in a rhenium(I) PNP pincer-type complex and the reaction with dihydrogen

Matthias Vogt et al.

CHEMICAL SCIENCE (2014)

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Article Chemistry, Inorganic & Nuclear

Addition of allyl halides to the new bis-o-amidophenolate gallium(III) complex

Alexandr V. Piskunov et al.

INORGANIC CHEMISTRY COMMUNICATIONS (2013)

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Article Chemistry, Inorganic & Nuclear

A Tris(triphenylphosphine)aluminum Ambiphilic Precatalyst for the Reduction of Carbon Dioxide with Catecholborane

Marc-Andre Courtemanche et al.

ORGANOMETALLICS (2013)

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Article Chemistry, Multidisciplinary

Phosphorus as a Lewis Acid: CO2 Sequestration with Amidophosphoranes

Lindsay J. Hounjet et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2012)

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Article Chemistry, Multidisciplinary

Addition of Alkynes to a Gallium Bis-Amido Complex: Imitation of Transition-Metal-Based Catalytic Systems

Igor L. Fedushkin et al.

CHEMISTRY-A EUROPEAN JOURNAL (2012)

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Article Chemistry, Multidisciplinary

A New Mode of Activation of CO2 by Metal-Ligand Cooperation with Reversible C?C and M?O Bond Formation at Ambient Temperature

Matthias Vogt et al.

CHEMISTRY-A EUROPEAN JOURNAL (2012)

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Article Chemistry, Inorganic & Nuclear

Fixation of carbon dioxide and related small molecules by a bifunctional frustrated pyrazolylborane Lewis pair

Eileen Theuergarten et al.

DALTON TRANSACTIONS (2012)

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Review Chemistry, Multidisciplinary

Metal-Ligand Cooperation by Aromatization-Dearomatization: A New Paradigm in Bond Activation and Green Catalysis

Chidambaram Gunanathan et al.

ACCOUNTS OF CHEMICAL RESEARCH (2011)

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Article Chemistry, Inorganic & Nuclear

Formation of a Reversible, Intramolecular Main-Group Metal-CO2 Adduct

Diane A. Dickie et al.

INORGANIC CHEMISTRY (2011)

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Article Chemistry, Multidisciplinary

Reversible Addition of Alkynes to Gallium Complex of Chelating Diamide Ligand

Igor L. Fedushkin et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2010)

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Article Chemistry, Multidisciplinary

Reactions of Boron Amidinates with CO2 and CO and Other Small Molecules

Meghan A. Dureen et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2010)

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Article Chemistry, Multidisciplinary

Reversible Metal-Free Carbon Dioxide Binding by Frustrated Lewis Pairs

Cornelia M. Moemming et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2009)

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Article Chemistry, Organic

σ- and π-electron contributions to the substituent effect: natural population analysis

Wojciech P. Oziminski et al.

JOURNAL OF PHYSICAL ORGANIC CHEMISTRY (2009)

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Article Chemistry, Inorganic & Nuclear

Structural variation in copper(I) complexes with pyridylmethylamide ligands: structural analysis with a new four-coordinate geometry index, tau(4)

Lei Yang et al.

DALTON TRANSACTIONS (2007)

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Article Chemistry, Multidisciplinary

[(dpp-bian)Ga-Ga(dpp-bian)] and [(dpp-bian)Zn-Ga(dpp-bian)]: Synthesis, molecular structures, and DFT studies of these novel bimetallic molecular compounds

Igor L. Fedushkin et al.

CHEMISTRY-A EUROPEAN JOURNAL (2007)

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Review Chemistry, Multidisciplinary

Carbon flatland: Planar tetracoordinate carbon and fenestranes

Reinhart Keese

CHEMICAL REVIEWS (2006)

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Review Chemistry, Multidisciplinary

Designer acids: Combined acid catalysis for asymmetric synthesis

H Yamamoto et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2005)

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Article Chemistry, Multidisciplinary

Triflimide activation of a chiral oxazaborolidine leads to a more general catalytic system for enantioselective Diels-Alder addition

DH Ryu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2003)

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Article Chemistry, Multidisciplinary

Broad-spectrum enantioselective Diels-Alder catalysis by chiral, cationic oxazaborolidines

DH Ryu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2002)

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Article Chemistry, Multidisciplinary

Asymmetric Diels-Alder reactions catalyzed by a triflic acid activated chiral oxazaborolidine

EJ Corey et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2002)

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Calix[4]pyrrolato gallate: square planar-coordinated gallium(iii) and its metal-ligand cooperative reactivity with CO2 and alcohols

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