Search Results - "Mawhinney, Robert C."
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Identification of a mammalian silicon transporter
Published in American Journal of Physiology: Cell Physiology (01-05-2017)“…Silicon (Si) has long been known to play a major physiological and structural role in certain organisms, including diatoms, sponges, and many higher plants,…”
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Toward Universal Substituent Constants: Relating QTAIM Functional Group Descriptors to Substituent Effect Proxies
Published in Journal of chemical information and modeling (09-10-2023)“…Substituents modulate reactions, but their effects are commonly described by using proxies to their functional group properties. Substituent descriptors from…”
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Toward universal substituent constants: Transferability of group descriptors from the quantum theory of atoms in molecules
Published in Journal of computational chemistry (05-02-2022)“…Traditionally, substituents are described not by their intrinsic properties, but by their effect elsewhere in a molecule. However, the quantum theory of atoms…”
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Isothiirane: A Molecular Structure Dilemma Resolved
Published in Journal of computational chemistry (30-03-2019)“…The electronic structure of molecules is routinely assessed using a number of methodologies including Bader's Quantum Theory of Atoms in Molecules (QTAIM) and…”
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Toward universal substituent constants: Model chemistry sensitivity of descriptors from the quantum theory of atoms in molecules
Published in Journal of computational chemistry (01-11-2020)“…The quantum theory of atoms in molecules (QTAIM) provides a theoretical foundation to determine the properties of functional groups through additive atomic…”
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Silicon Forms a Rich Diversity of Aliphatic Polyol Complexes in Aqueous Solution
Published in Journal of the American Chemical Society (20-05-2020)“…A detailed examination of aqueous Si complexation by alditols and aldonic acids was conducted using high-sensitivity 29Si NMR spectroscopy of isotopically…”
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Computational insights into the electronic structure of TCNDQ and TCNP: the effect of Si substitution
Published in Structural chemistry (01-10-2019)“…Tetracyanodiphenoquinodimethane (TCNDQ) and tetracyanopyrenoquinodimethane (TCNP) are larger cyanocarbons related to tetracyanoethylene (TCNE) and…”
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The electron affinities of TCNE and TCNQ: the effect of silicon substitution
Published in Structural chemistry (01-02-2019)“…The cyanocarbons tetracyanoethylene (TCNE) and tetracyanoquinodimethane (TCNQ) are important electron acceptors used in organic electronic applications. A…”
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An examination of the effects of borate group proximity on phosphine donor power in anionic (phosphino)tetraphenylborate ligands
Published in Journal of organometallic chemistry (15-01-2015)“…The ligand electron-donating abilities are compared among a series of monodentate, anionic (phosphino)tetraphenylborate phosphines [Ph4P][Ph2P-R-C6H4BPh3]…”
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A computational study of the 1,3-dipolar cycloaddition reaction mechanism for nitrilimines
Published in Canadian journal of chemistry (01-09-2005)“…The [3+2] and [1+2] cycloaddition pathways between ethene and a series of 13 nitrilimines (R 1 CNNR 2 ) have been examined by density functional theory…”
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Inductive Effect: A Quantum Theory of Atoms in Molecules Perspective
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (17-11-2011)“…Substituent effects are ubiquitous in chemistry and the most fundamental is the inductive effect. In this study, the so-called inductive effect was probed in…”
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Density Functional Study of Lithium Hexamethyldisilazide (LiHMDS) Complexes: Effects of Solvation and Aggregation
Published in Inorganic chemistry (14-05-2007)“…The title compound, lithium hexamethyldisilazide (LiHMDS), has been studied using modern quantum-chemical methods in the form of the B3LYP approach. Monomers,…”
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13
Interaction of carbon monoxide with small metal clusters: a DFT, electrochemical, and FTIR study
Published in Canadian journal of chemistry (01-12-2011)“…The adsorption of CO molecules onto small metal clusters was studied using density functional theory (DFT) calculations, and experimental electrochemical and…”
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Characterizing Nitrilimines with Nuclear Magnetic Resonance Spectroscopy. A Theoretical Study
Published in The journal of physical chemistry. B (17-01-2008)“…The 13C chemical shifts in selected nitrilimines, nitriles, acetylenes, allenes, and singlet carbenes have been calculated using density-functional theory…”
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Lowest Singlet and Triplet Potential Energy Surfaces of S2N2
Published in Inorganic chemistry (06-10-2003)“…Forty four stationary points have been located on the lowest singlet and triplet potential energy surfaces of S2N2. Ten minima and ten saddle points on the…”
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Using the nitro group to induce π-stacking in terthiophenes
Published in Canadian journal of chemistry (01-04-2010)“…A new synthetic route to mononitrated oligothiophenes is described, as well as the preparation of halogenated derivatives (Br, I) thereof. An unusual deep red…”
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NMR quantum computing: applying theoretical methods to designing enhanced systems
Published in Magnetic resonance in chemistry (01-10-2004)“…Density functional theory results for chemical shifts and spin–spin coupling constants are presented for compounds currently used in NMR quantum computing…”
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Unactivated Pd-catalyzed oxidative cross-coupling reactions of arenes with benzene: a theoretical and experimental study
Published in Canadian journal of chemistry (17-10-2024)“…Oxidative C–H bond activated palladium-catalyzed aromatic cross-coupling reactions offer advantages of fewer required synthetic steps but disadvantages of loss…”
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A theoretical analysis of the conformational behaviour of substituted methylenecyclohexanes
Published in Canadian journal of chemistry (01-10-2003)“…The use of the PBE0 hybrid density functional theory method in conjunction with the COSMO solvation model allowed us to reproduce, both qualitatively and…”
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Assessment of density functional theory for the prediction of the nature of the oxirene stationary point
Published in Journal of molecular structure. Theochem (04-07-2003)“…The nature of the stationary point of oxirene, cyclic C 2H 2O, has been examined using selected GGA and hybrid functionals in combination with a number of…”
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