f-block metals
... The f-block elements are all metals and can be divided into general groups, the lanthanides and the actinides. The lanthanides are also known as rare earth metals or rare earths. Actually, they are not especially rare, except for promethium (Pm) which has a very short half-life and is produced artif ...
... The f-block elements are all metals and can be divided into general groups, the lanthanides and the actinides. The lanthanides are also known as rare earth metals or rare earths. Actually, they are not especially rare, except for promethium (Pm) which has a very short half-life and is produced artif ...
Periodic Trends & the Periodic Table
... • The first series of inner transition elements is called the lanthanides because they follow element number 57, lanthanum. • The second series of inner transition elements, the actinides, have atomic numbers ranging from 90 (thorium, Th) to 103 (lawrencium, Lr). ...
... • The first series of inner transition elements is called the lanthanides because they follow element number 57, lanthanum. • The second series of inner transition elements, the actinides, have atomic numbers ranging from 90 (thorium, Th) to 103 (lawrencium, Lr). ...
Chem 311 Syllabus 2015 August 26th update
... plausible resonance form, draw them all (but don’t bother drawing out equivalent resonance forms). (b) Assign the formal charge and oxidation state of each atom in the molecules of part (a). For compounds with more than one resonance structure, determine the most stable form on the basis of the form ...
... plausible resonance form, draw them all (but don’t bother drawing out equivalent resonance forms). (b) Assign the formal charge and oxidation state of each atom in the molecules of part (a). For compounds with more than one resonance structure, determine the most stable form on the basis of the form ...
lesson 5
... Not all atoms form compounds. Only atoms that have outer shells that are not full form compounds. The elements of Group 18 have complete outer shells. These atoms usually do not form compounds. All other atoms have outer shells that are not full. All other atoms form compounds. Atoms form compounds ...
... Not all atoms form compounds. Only atoms that have outer shells that are not full form compounds. The elements of Group 18 have complete outer shells. These atoms usually do not form compounds. All other atoms have outer shells that are not full. All other atoms form compounds. Atoms form compounds ...
Properties of Atomic Orbitals and Intro to Molecular Orbital Theory
... – Stabilization of the bonding MO – Destabilization of the antibonding MO – The antibonding MO is destabilized to a greater extent than the bonding MO is stabilized ...
... – Stabilization of the bonding MO – Destabilization of the antibonding MO – The antibonding MO is destabilized to a greater extent than the bonding MO is stabilized ...
Naming Compounds aka Nomenclature - mvhs
... Naming of Complex Compounds Name cation first followed by anion. Within a complex, transition metal is named first with its charge listed within parenthesis, followed by ligands and then anion. If complex is anion, then its name ends in –ate. ...
... Naming of Complex Compounds Name cation first followed by anion. Within a complex, transition metal is named first with its charge listed within parenthesis, followed by ligands and then anion. If complex is anion, then its name ends in –ate. ...
Modelling of the Blood Plasma Species of Diagnostic Radiopharmaceuticals
... coordinate transition metals.6 Carboxy-biguanide (CBIG) is a substituted biguanide with a propanoic acid group attached at the N1 position. It is postulated to form a [TcO(BIG-COO)2]– complex, as opposed to a [TcO(BIG)2]+ complex, which could assist in its clearance from the kidneys. It is possible ...
... coordinate transition metals.6 Carboxy-biguanide (CBIG) is a substituted biguanide with a propanoic acid group attached at the N1 position. It is postulated to form a [TcO(BIG-COO)2]– complex, as opposed to a [TcO(BIG)2]+ complex, which could assist in its clearance from the kidneys. It is possible ...
High-spin Cyclopentadienyl Complexes, Part 6. σ/π
... of C30 reside at Fe1–C distances of 2.135(3) and 2.138(2) Å (Fig. 1). Moreover, the projection of Fe1 onto the ring plane is much closer to C33 (para, 1.379 Å) than to C30 (ipso, 1.525 Å). The most acute C–C–C angle in the six-membered ring is at the ipso position (C30, 115.46◦, average of the ot ...
... of C30 reside at Fe1–C distances of 2.135(3) and 2.138(2) Å (Fig. 1). Moreover, the projection of Fe1 onto the ring plane is much closer to C33 (para, 1.379 Å) than to C30 (ipso, 1.525 Å). The most acute C–C–C angle in the six-membered ring is at the ipso position (C30, 115.46◦, average of the ot ...
structures of simple solids
... The Ionic Model by Goldschmidt states that are ions are essentially charged, incompressible, nonpolarisable spheres. More sophisticated models assume ions are composed of two parts: A central, hard, unperturbable core, where most electron density is concentrated. A soft, polarisable outer sphere, wh ...
... The Ionic Model by Goldschmidt states that are ions are essentially charged, incompressible, nonpolarisable spheres. More sophisticated models assume ions are composed of two parts: A central, hard, unperturbable core, where most electron density is concentrated. A soft, polarisable outer sphere, wh ...
Contributions to the chemistry of group 15 and 16 hypervalent
... universal accepted definition. It states that in order for a molecule containing elements of group V-VIII to be described as hypervalent, the elements must find themselves having other valences as their lowest stable valence.1 The N-X-L nomenclature was introduced in 1980 and it is still used to cla ...
... universal accepted definition. It states that in order for a molecule containing elements of group V-VIII to be described as hypervalent, the elements must find themselves having other valences as their lowest stable valence.1 The N-X-L nomenclature was introduced in 1980 and it is still used to cla ...
Organometaalchemie - University of Manitoba
... Most elements have a clear preference for certain oxidation states. These are determined by (a.o.) electronegativity and the number of valence electrons: ...
... Most elements have a clear preference for certain oxidation states. These are determined by (a.o.) electronegativity and the number of valence electrons: ...
General Chemistry
... • London dispersion forces exist between all molecules. • London dispersion forces depend on the shape of the molecule. • London dispersion forces between spherical molecules are lower than between sausage-like molecules. 4- Hydrogen Bonding As the name "hydrogen bond" implies, one part of the bond ...
... • London dispersion forces exist between all molecules. • London dispersion forces depend on the shape of the molecule. • London dispersion forces between spherical molecules are lower than between sausage-like molecules. 4- Hydrogen Bonding As the name "hydrogen bond" implies, one part of the bond ...
File - Ms. Buicke maths and science
... It has an electronic configuration of 2, 8, 1. This means that it needs to lose the one electron which it has in its outer shell in order to have a complete outer shell. The atomic number of chlorine is 17. Chlorine has an electronic configuration of 2, 8, 7. This means it needs to gain one electron ...
... It has an electronic configuration of 2, 8, 1. This means that it needs to lose the one electron which it has in its outer shell in order to have a complete outer shell. The atomic number of chlorine is 17. Chlorine has an electronic configuration of 2, 8, 7. This means it needs to gain one electron ...
19F NMR in organometallic chemistry Applications of fluorinated aryls
... the corresponding interactions between protons; (iii) often the 19 F–19 F coupling is transmitted not only through bonding electrons, but also by a direct through space mechanism; (iv) solvent effects influence 19 F resonances far more strongly than 1 H resonances and solvent induced shifts of 5 ppm ...
... the corresponding interactions between protons; (iii) often the 19 F–19 F coupling is transmitted not only through bonding electrons, but also by a direct through space mechanism; (iv) solvent effects influence 19 F resonances far more strongly than 1 H resonances and solvent induced shifts of 5 ppm ...
Learning outcomes as word document cfe pupil copy
... The principal energy levels correspond to the principal shells. The second and subsequent principal shells contain subshells which correspond to the sublevels. Subshells can be labelled s, p, d and f. The types of subshells within each principal shell are as follows: First shell s subshell Second sh ...
... The principal energy levels correspond to the principal shells. The second and subsequent principal shells contain subshells which correspond to the sublevels. Subshells can be labelled s, p, d and f. The types of subshells within each principal shell are as follows: First shell s subshell Second sh ...
- Free Documents
... The square planar geometry is favored by d metals e.g. Ni II, Pd II, PtII, Ir I, RhI. A stable electronic configuration is achieved at e, where all bonding and non bonding orbitals are ...
... The square planar geometry is favored by d metals e.g. Ni II, Pd II, PtII, Ir I, RhI. A stable electronic configuration is achieved at e, where all bonding and non bonding orbitals are ...
A Stable Five-Coordinate Platinum(IV) Alkyl
... In contrast, 100% conversion (1H NMR) of 1 to 2 was observed within 10 min of irradiation of a sample of 1 at ambient temperature using a commercial Hg/Xe lamp. There is strong precedent that photolysis of methylplatinum(IV) compounds can lead to homolytic Pt-C bond cleavage.21 Thus, a radical pathw ...
... In contrast, 100% conversion (1H NMR) of 1 to 2 was observed within 10 min of irradiation of a sample of 1 at ambient temperature using a commercial Hg/Xe lamp. There is strong precedent that photolysis of methylplatinum(IV) compounds can lead to homolytic Pt-C bond cleavage.21 Thus, a radical pathw ...
Synthesis and structure characterization of zinc and cadmium
... Since the early 1990s a number of research teams started to extensively synthesise and characterise organic–inorganic hybrid materials of regular microporous structures.1–5 Nowadays, coordination polymers and metal–organic frameworks (MOFs) are well known classes of compounds, where organic molecule ...
... Since the early 1990s a number of research teams started to extensively synthesise and characterise organic–inorganic hybrid materials of regular microporous structures.1–5 Nowadays, coordination polymers and metal–organic frameworks (MOFs) are well known classes of compounds, where organic molecule ...
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.