Joanna Kulesza
... Je tiens à exprimer ici la mémoire de mes anciennes amies: Anna Bresińska, Dominika Kozłowska, Anna Budzisz et Justyna Piotrowska. ...
... Je tiens à exprimer ici la mémoire de mes anciennes amies: Anna Bresińska, Dominika Kozłowska, Anna Budzisz et Justyna Piotrowska. ...
SUPPORTED LIGANDS FOR METAL CATALYZED REACTIONS Rocío Marcos Escartín ISBN:
... Homogeneous metal catalysts are composed by a metal complex modified with organic ligands. Although the first non enzymatic asymmetric catalysts known were simple organic molecules,[1] the research regarding catalysis reached full development with metal-based systems, which have been predominant for ...
... Homogeneous metal catalysts are composed by a metal complex modified with organic ligands. Although the first non enzymatic asymmetric catalysts known were simple organic molecules,[1] the research regarding catalysis reached full development with metal-based systems, which have been predominant for ...
Unitat de Química Física Departament de Química Universitat Autònoma de Barcelona
... where MZ+ are extraframework cations (e.g. H+, Na+, K+, Ca2+, Mg2+, Cu+ or Cu2+ etc.) and qH2O indicates extra-lattice water molecules. These molecules are easily removed by heating up to about 350 ºC.7 This process is known as activation of the zeolite. Zeolites can be divided in two groups: zeolit ...
... where MZ+ are extraframework cations (e.g. H+, Na+, K+, Ca2+, Mg2+, Cu+ or Cu2+ etc.) and qH2O indicates extra-lattice water molecules. These molecules are easily removed by heating up to about 350 ºC.7 This process is known as activation of the zeolite. Zeolites can be divided in two groups: zeolit ...
Ternary nucleation of inorganic acids, ammonia, and water
... from classical nucleation theory at various combinations of temperature and ambient vapor concentrations. Mixtures with sulfuric acid (H2 SO4 ), nitric acid (HNO3 ), hydrochloric acid 共HCl兲, and methane sulfonic acid (CH3 SO3 H or MSA兲 are considered. The results are compared to assess the relative ...
... from classical nucleation theory at various combinations of temperature and ambient vapor concentrations. Mixtures with sulfuric acid (H2 SO4 ), nitric acid (HNO3 ), hydrochloric acid 共HCl兲, and methane sulfonic acid (CH3 SO3 H or MSA兲 are considered. The results are compared to assess the relative ...
Introduction
... lanthanide–ligand bonding, a difference which plays an essential role in the selective complexation of trivalent 5f over 4f ions, finding a particular application in the reprocessing of spent nuclear fuel.11 Since the bonds between the BH4 ligand and d transition metals or felements are reputed to h ...
... lanthanide–ligand bonding, a difference which plays an essential role in the selective complexation of trivalent 5f over 4f ions, finding a particular application in the reprocessing of spent nuclear fuel.11 Since the bonds between the BH4 ligand and d transition metals or felements are reputed to h ...
article
... The unusual properties of the CO ligand in stabilizing low oxidation states stimulated the search for other ligands with similar properties. In this connection Wilkinson and Irvine [2] in 1951 discovered the binary zerovalent nickel trifluorophosphine complex Ni(PF3)4, as a volatile liquid considera ...
... The unusual properties of the CO ligand in stabilizing low oxidation states stimulated the search for other ligands with similar properties. In this connection Wilkinson and Irvine [2] in 1951 discovered the binary zerovalent nickel trifluorophosphine complex Ni(PF3)4, as a volatile liquid considera ...
STRUcruR.AL ASPEcrs AND COORDINATION CHEMISTRY OF
... to eqn. (4), results in the formation of the p-bridged carbido complex (see Section F) [Fe(TPP)hC [40]. This reaction presumably proceeds via the diiodocarbene L."1termediate, Fe(TPP)CI 2' (io) Metal-carbon a-bonded complexes ...
... to eqn. (4), results in the formation of the p-bridged carbido complex (see Section F) [Fe(TPP)hC [40]. This reaction presumably proceeds via the diiodocarbene L."1termediate, Fe(TPP)CI 2' (io) Metal-carbon a-bonded complexes ...
Reactions of Transition Metal Complexes with Fullerenes (C60, C70
... the fullerene and a metal complex are cocrystallized.21 The last reaction type may involve some degree of charge transfer between the individual components. The survey in Section III reports on the specific compounds that have been prepared so far via the routes outlined above for each of the transi ...
... the fullerene and a metal complex are cocrystallized.21 The last reaction type may involve some degree of charge transfer between the individual components. The survey in Section III reports on the specific compounds that have been prepared so far via the routes outlined above for each of the transi ...
Transition Metal Polyhydrides: From Qualitative
... of H2 with the metal atom. In many cases, the goal of these studies was to model the interaction of H2 with a metal surface. Although the modeling was later improved in calculations with metal clusters, the studies on gas-phase systems have given rise to a better understanding of the nature of bondi ...
... of H2 with the metal atom. In many cases, the goal of these studies was to model the interaction of H2 with a metal surface. Although the modeling was later improved in calculations with metal clusters, the studies on gas-phase systems have given rise to a better understanding of the nature of bondi ...
Ylide Ligands - DIGITAL.CSIC, el repositorio institucional
... of the negative charge, which could either be centered at the C atom or more or less delocalized through the substituents. Ylides are not simply ligands, they are very good ligands and they have been frequently used as ancillary ligands in organometallic complexes. There are several reasons to unde ...
... of the negative charge, which could either be centered at the C atom or more or less delocalized through the substituents. Ylides are not simply ligands, they are very good ligands and they have been frequently used as ancillary ligands in organometallic complexes. There are several reasons to unde ...
Rydberg-Stark deceleration of atoms and
... Applications of decelerated beams of Rydberg atoms and molecules Highly excited Rydberg states of atoms and molecules play important roles in many areas at the interface between physics and physical chemistry. Transitions between individual Rydberg states of carbon with values of n exceeding 1000 ha ...
... Applications of decelerated beams of Rydberg atoms and molecules Highly excited Rydberg states of atoms and molecules play important roles in many areas at the interface between physics and physical chemistry. Transitions between individual Rydberg states of carbon with values of n exceeding 1000 ha ...
Preparation and structural characterization of group 1 metal
... donor atoms for the former. To compensate this inherent discrepancy between 3 and 4, we thus chose to examine those bearing a sterically demanding substituent ortho to the phenolato oxygen atoms. Compound bis-(3,5-di-tertbutyl-2-hydroxyphenyl)phenylphosphine (H2[OPO]) is a suitable ligand precursor ...
... donor atoms for the former. To compensate this inherent discrepancy between 3 and 4, we thus chose to examine those bearing a sterically demanding substituent ortho to the phenolato oxygen atoms. Compound bis-(3,5-di-tertbutyl-2-hydroxyphenyl)phenylphosphine (H2[OPO]) is a suitable ligand precursor ...
O - Verhandlungen
... field is familiar to surface scientists in the form of surface plasmons, for example. To control the near field we have developed a new class of materials with properties not found in nature. These new materials derive their properties not from the atomic and molecular constituents of the solid, but ...
... field is familiar to surface scientists in the form of surface plasmons, for example. To control the near field we have developed a new class of materials with properties not found in nature. These new materials derive their properties not from the atomic and molecular constituents of the solid, but ...
Nomenclature of Inorganic Chemistry IUPAC Recommendations 2005
... The reader facing the problem of how to name a given compound or species may find help in several ways. A flowchart is provided in Section IR-1.5.3.5 which will in most cases guide the user to a Section or Chapter where rules can be found for generating at least one possible name; a second flowchart is ...
... The reader facing the problem of how to name a given compound or species may find help in several ways. A flowchart is provided in Section IR-1.5.3.5 which will in most cases guide the user to a Section or Chapter where rules can be found for generating at least one possible name; a second flowchart is ...
Nomenclature of Inorganic Chemistry (IUPAC Recommendations
... The reader facing the problem of how to name a given compound or species may find help in several ways. A flowchart is provided in Section IR-1.5.3.5 which will in most cases guide the user to a Section or Chapter where rules can be found for generating at least one possible name; a second flowchart is ...
... The reader facing the problem of how to name a given compound or species may find help in several ways. A flowchart is provided in Section IR-1.5.3.5 which will in most cases guide the user to a Section or Chapter where rules can be found for generating at least one possible name; a second flowchart is ...
Metal cluster aggregates of the composition Nbn +
... different ways. Within this thesis, chosen treatments of such ionic molecules will be kinetic investigations with reaction gases, collision induced dissociation (CID), or infrared multiphoton dissociation (IR-MPD). A wide range of molecules is accessible for these kinds of investigation. ...
... different ways. Within this thesis, chosen treatments of such ionic molecules will be kinetic investigations with reaction gases, collision induced dissociation (CID), or infrared multiphoton dissociation (IR-MPD). A wide range of molecules is accessible for these kinds of investigation. ...
Perspectives on How Nature Employs the Principles of
... showed that Fe2[(μ-SCH2)2NR)2](CO)6 could be easily synthesized by condensation of Fe2(μ-SH)2(CO)6, formaldehyde, and amines.15 From a more general viewpoint, nature is also remarkably adept at binding and activating other small molecules such as O2, N2, and even inert hydrocarbons, including methan ...
... showed that Fe2[(μ-SCH2)2NR)2](CO)6 could be easily synthesized by condensation of Fe2(μ-SH)2(CO)6, formaldehyde, and amines.15 From a more general viewpoint, nature is also remarkably adept at binding and activating other small molecules such as O2, N2, and even inert hydrocarbons, including methan ...
Computer simulation of the dynamics of aqueous solvation
... the basis of the vast amount already known about aqueous solvation. 31 Especially in terms of computer simulations, the number of studies of aqueous solvation is at least an order of magnitude greater than for all other solvents combined. Traditionally, simulations have mainly concerned the equilibr ...
... the basis of the vast amount already known about aqueous solvation. 31 Especially in terms of computer simulations, the number of studies of aqueous solvation is at least an order of magnitude greater than for all other solvents combined. Traditionally, simulations have mainly concerned the equilibr ...
Review: Gas-phase ion chemistry of the noble
... charge accumulation in the middle of the Au–Ng internuclear region, which is typical of a covalent bond. Not unexpectedly, its extent was found to increase as one moves from Ar to Xe. It is also of interest to note that recent DFT calculations on the Au+(Ar)n clusters with n up to 6,79 also revealed ...
... charge accumulation in the middle of the Au–Ng internuclear region, which is typical of a covalent bond. Not unexpectedly, its extent was found to increase as one moves from Ar to Xe. It is also of interest to note that recent DFT calculations on the Au+(Ar)n clusters with n up to 6,79 also revealed ...
Atomic and Ionic Radii of Elements 1–96
... lighter p-block elements, and some deviations are seen in the d-blocks where a few elements show dramatic changes in atomic valence orbital occupation, which affects the radii (Supporting Information, Figure S1). The relative size given by our radii for Group 1 and 2 atoms is at variance with the Ba ...
... lighter p-block elements, and some deviations are seen in the d-blocks where a few elements show dramatic changes in atomic valence orbital occupation, which affects the radii (Supporting Information, Figure S1). The relative size given by our radii for Group 1 and 2 atoms is at variance with the Ba ...
The Organometallic Chemistry Of Transition Metals
... two isomers of [Co(NH3 )4 Cl2 ]+ (1.6 and 1.7). Up to that time, only a green one had ever been found. We now call this the trans isomer (1.6) because the two Cl ligands occupy opposite vertices of the octahedron. According to Werner’s theory, there should also have been a second isomer, 1.7 (cis), ...
... two isomers of [Co(NH3 )4 Cl2 ]+ (1.6 and 1.7). Up to that time, only a green one had ever been found. We now call this the trans isomer (1.6) because the two Cl ligands occupy opposite vertices of the octahedron. According to Werner’s theory, there should also have been a second isomer, 1.7 (cis), ...
Molecular Orbital Study of H2 and CH4 Activation on Small Metal
... CH4 on these clusters have been studied with a density functional method. Full geometry optimization has been carried out and led to the reaction mechanisms that are dramatically different from those of a previous work where only limited potential energy scans were carried out. In the Pd3 + H2 syste ...
... CH4 on these clusters have been studied with a density functional method. Full geometry optimization has been carried out and led to the reaction mechanisms that are dramatically different from those of a previous work where only limited potential energy scans were carried out. In the Pd3 + H2 syste ...
Molecular Encapsulation - Colin Nuckolls
... the role of solvent in the formation of the capsules cannot be ignored. The medium must not disrupt the interactions that hold the components of the capsule together. Capsules constructed through metal ± ligand interactions are typically disrupted by strongly ligating solvents, while they may remain ...
... the role of solvent in the formation of the capsules cannot be ignored. The medium must not disrupt the interactions that hold the components of the capsule together. Capsules constructed through metal ± ligand interactions are typically disrupted by strongly ligating solvents, while they may remain ...
Electronic-structure calculations by first-principles
... and performing a relatively small configuration interaction ~CI! calculation within the orbitals localized on the embedded cluster. This strategy provides an approximate way of accounting for nearby electrons outside the embedded cluster itself. The theory enables the treatment of localized chemisor ...
... and performing a relatively small configuration interaction ~CI! calculation within the orbitals localized on the embedded cluster. This strategy provides an approximate way of accounting for nearby electrons outside the embedded cluster itself. The theory enables the treatment of localized chemisor ...
Small Reactive Sulfur-Nitrogen Compounds and Their Transition
... by sulfurization of nitrido-metal complexes or by halide abstraction from either thiazyl fluoride or thiazyl chloride complexes. In most cases N3S3Cl,, and occasionally S4N4,have been used as sources for the thionitrosyl ligand. The direct introduction of the SN group Sb'*) is possible via thiazyl c ...
... by sulfurization of nitrido-metal complexes or by halide abstraction from either thiazyl fluoride or thiazyl chloride complexes. In most cases N3S3Cl,, and occasionally S4N4,have been used as sources for the thionitrosyl ligand. The direct introduction of the SN group Sb'*) is possible via thiazyl c ...