Department of Chemistry First Year Syllabus
... a maths laboratory (24 hours) and three tutorials a week (in small groups of 4 to 6 students). Moreover the students attend workshops (arrow pushing and symmetry). The first year is evaluated by exams (the Foundation Course in January and three examinations – inorganic, physical and organic – in Jun ...
... a maths laboratory (24 hours) and three tutorials a week (in small groups of 4 to 6 students). Moreover the students attend workshops (arrow pushing and symmetry). The first year is evaluated by exams (the Foundation Course in January and three examinations – inorganic, physical and organic – in Jun ...
Dinesh-ohiostate05
... IR spectroscopy coupled with DFT calculations of Nb+(N2)n reveals the structures of these clusters. The spectra show that N2 binds in an “end on” configuration to Nb+. The results also reveal possible evidence for a change in multiplicity in the metal cation due to solvation effects. The N-N stretch ...
... IR spectroscopy coupled with DFT calculations of Nb+(N2)n reveals the structures of these clusters. The spectra show that N2 binds in an “end on” configuration to Nb+. The results also reveal possible evidence for a change in multiplicity in the metal cation due to solvation effects. The N-N stretch ...
The structure of Escherichia coli ExoIX—implications for DNA
... was not directly observed in the structure (4). A helix-3-turn-helix (H3TH) or similar motif present in these proteins is also implicated in DNA binding (5). This is similar to the well-known helix-hairpin-helix (HhH) motif (18), except that the hairpin region is significantly extended into a loop ca ...
... was not directly observed in the structure (4). A helix-3-turn-helix (H3TH) or similar motif present in these proteins is also implicated in DNA binding (5). This is similar to the well-known helix-hairpin-helix (HhH) motif (18), except that the hairpin region is significantly extended into a loop ca ...
Net ionic equation
... The forces holding an ionic compound together are the strong electrical attraction that exists between cations and anions. It is therefore somewhat surprising that ionic compounds will dissolve in water. The reason some ionic compounds will dissolve in water is because the water molecules have a par ...
... The forces holding an ionic compound together are the strong electrical attraction that exists between cations and anions. It is therefore somewhat surprising that ionic compounds will dissolve in water. The reason some ionic compounds will dissolve in water is because the water molecules have a par ...
Functionalization of N2 to NH3 via direct N ≡ N bond cleavage
... have been fully optimized at B3LYP47–49 level of theory using LANL2DZ basis set.50–53 Vibrational frequency calculations were performed on these optimized structures to confirm the stationary points. A solvent correction (for Heptane, Toluene and THF) was performed using the polarized continuum mode ...
... have been fully optimized at B3LYP47–49 level of theory using LANL2DZ basis set.50–53 Vibrational frequency calculations were performed on these optimized structures to confirm the stationary points. A solvent correction (for Heptane, Toluene and THF) was performed using the polarized continuum mode ...
Groups 2 and 7
... flames are produced. This is due to the presence of metal ions. Flame tests exploit this fact. The presence of certain metal ions can be identified by noting the characteristic flame colour that results from burning. The colours for group 2 metal ions are: ...
... flames are produced. This is due to the presence of metal ions. Flame tests exploit this fact. The presence of certain metal ions can be identified by noting the characteristic flame colour that results from burning. The colours for group 2 metal ions are: ...
Construction of Porous Solids from Hydrogen
... graphite-monochromated Mo KR radiation and full 1.60° wide ω scans to a maximum of θ ) 25.08°, giving 2628 unique reflections. Lattice parameters were obtained from least-squares analyses of 25 computercentered reflections with 15 e 2θ e 30. The raw intensity data was converted to structure factor a ...
... graphite-monochromated Mo KR radiation and full 1.60° wide ω scans to a maximum of θ ) 25.08°, giving 2628 unique reflections. Lattice parameters were obtained from least-squares analyses of 25 computercentered reflections with 15 e 2θ e 30. The raw intensity data was converted to structure factor a ...
Encapsulated, Stabilized Alkali Metals for Birch
... wt. % alkali metal. The powders can be utilized in batch and continuous processes at ambient temperatures and pressures and do not require the use of liquid ammonia. The by-products and waste-streams associated with these materials are non-toxic and environmentally safe (sodium silicate). A number o ...
... wt. % alkali metal. The powders can be utilized in batch and continuous processes at ambient temperatures and pressures and do not require the use of liquid ammonia. The by-products and waste-streams associated with these materials are non-toxic and environmentally safe (sodium silicate). A number o ...
Oregon State chemistry
... The 2:1 intensities and doublet/triplet splitting indicates 3 F’s in two environments (2 of one type and 1 of another). This is the case for ClF3 at low temp, with one equatorial and two axial F’s. The other reasonable candidate with 3 F’s, BF3, is trigonal planar and has all the F’s equivalent, so ...
... The 2:1 intensities and doublet/triplet splitting indicates 3 F’s in two environments (2 of one type and 1 of another). This is the case for ClF3 at low temp, with one equatorial and two axial F’s. The other reasonable candidate with 3 F’s, BF3, is trigonal planar and has all the F’s equivalent, so ...
Accounts
... the best result with regard to selectivity and reactivity. When 2-methoxyethanol is used as an alcohol, the krel is improved to 41.2 for as the ligand. This is applicable not only to binaphthols but also to biphenols, which have been considered to be difficult for the enantioselective synthesis by k ...
... the best result with regard to selectivity and reactivity. When 2-methoxyethanol is used as an alcohol, the krel is improved to 41.2 for as the ligand. This is applicable not only to binaphthols but also to biphenols, which have been considered to be difficult for the enantioselective synthesis by k ...
Introduction to Inorganic Chemistry
... order to achieve its ends. This means that a good chemist is one who not only has a mastery of chemical theory, but also a good knowledge of chemical facts. With such a knowledge, he can direct a trial and error approach to practical problems in the most promising directions. Inorganic Chemistry Org ...
... order to achieve its ends. This means that a good chemist is one who not only has a mastery of chemical theory, but also a good knowledge of chemical facts. With such a knowledge, he can direct a trial and error approach to practical problems in the most promising directions. Inorganic Chemistry Org ...
Transition Metal Catalyzed Coupling Reactions
... The coupling of organoboron reagents has become the most commonly used cross-coupling process. Organoboron reagents are less toxic than organotin reagents and tend to undergo coupling reactions in the presence of a variety of functional groups. ...
... The coupling of organoboron reagents has become the most commonly used cross-coupling process. Organoboron reagents are less toxic than organotin reagents and tend to undergo coupling reactions in the presence of a variety of functional groups. ...
Chapter 4 Solution Chemistry
... Examples: Stoichiometry of Precipitation Rxns 7. The insolubility of some ionic compounds can be used to determine the concentration of ions in solution. For example, Ag+ can be added to a solution of Cl- to precipitate all of the Cl- in the form of insoluble AgCl. The concentration of the Cl- is de ...
... Examples: Stoichiometry of Precipitation Rxns 7. The insolubility of some ionic compounds can be used to determine the concentration of ions in solution. For example, Ag+ can be added to a solution of Cl- to precipitate all of the Cl- in the form of insoluble AgCl. The concentration of the Cl- is de ...
No Slide Title
... The forces holding an ionic compound together are the strong electrical attraction that exists between cations and anions. It is therefore somewhat surprising that ionic compounds will dissolve in water. The reason some ionic compounds will dissolve in water is because the water molecules have a par ...
... The forces holding an ionic compound together are the strong electrical attraction that exists between cations and anions. It is therefore somewhat surprising that ionic compounds will dissolve in water. The reason some ionic compounds will dissolve in water is because the water molecules have a par ...
covalent - Typepad
... b. the types of atoms in the molecule. c. the number of valence electrons for each atom. d. the number of atoms in the molecule. 54. In drawing a Lewis structure, each nonmetal atom except hydrogen should be surrounded by a. 2 electrons. c. 8 electrons. b. 4 electrons. d. 10 electrons. 55. If, after ...
... b. the types of atoms in the molecule. c. the number of valence electrons for each atom. d. the number of atoms in the molecule. 54. In drawing a Lewis structure, each nonmetal atom except hydrogen should be surrounded by a. 2 electrons. c. 8 electrons. b. 4 electrons. d. 10 electrons. 55. If, after ...
View/Open
... The presence of hydroxyl groups in phenols means that phenols are like alcohols (Section 11.2) in some respects. For example, they are able to form strong intermolecular hydrogen bonds, and therefore have higher boiling points than hydrocarbons of the same molecular weight. Phenol (bp 182 8C) has a ...
... The presence of hydroxyl groups in phenols means that phenols are like alcohols (Section 11.2) in some respects. For example, they are able to form strong intermolecular hydrogen bonds, and therefore have higher boiling points than hydrocarbons of the same molecular weight. Phenol (bp 182 8C) has a ...
Investigating the Dearomative Rearrangement of Biaryl Phosphine- Ligated Pd(II) Complexes
... connectivity that allows for the loss of HBr and rearomatization to occur. Taken together, these reports suggest that the lower ring of biaryl phosphine ligands may not be innocent in the reactivity and decomposition pathways of catalytic intermediates. Reactions wherein a transition metal-bound are ...
... connectivity that allows for the loss of HBr and rearomatization to occur. Taken together, these reports suggest that the lower ring of biaryl phosphine ligands may not be innocent in the reactivity and decomposition pathways of catalytic intermediates. Reactions wherein a transition metal-bound are ...
Oxidative addition to main group versus transition metals: Insights
... The term DVelst corresponds to the classical electrostatic interaction between the unperturbed charge distributions of the deformed reactants and is usually attractive. The Pauli repulsion DEPauli comprises the destabilizing interactions between occupied orbitals and is responsible for any steric re ...
... The term DVelst corresponds to the classical electrostatic interaction between the unperturbed charge distributions of the deformed reactants and is usually attractive. The Pauli repulsion DEPauli comprises the destabilizing interactions between occupied orbitals and is responsible for any steric re ...
Molecular UV-Visible Spectroscopy
... Molecular energy levels and absorbance wavelength: * and * transitions: high-energy, accessible in vacuum UV (max <150 nm). Not usually observed in molecular UV-Vis. n * and * transitions: non-bonding electrons (lone pairs), wavelength (max) in the 150-250 nm region. n * and ...
... Molecular energy levels and absorbance wavelength: * and * transitions: high-energy, accessible in vacuum UV (max <150 nm). Not usually observed in molecular UV-Vis. n * and * transitions: non-bonding electrons (lone pairs), wavelength (max) in the 150-250 nm region. n * and ...
Coordination complex
In chemistry, a coordination complex or metal complex consists of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those of transition metals, are coordination complexes.