Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Complex chemistry

Complexes 17-19 can be written in one valence structure as a, /3-unsaturated carbonyl compounds in which the carbonyl oxygen atom is coordinated to a BF2(OR) Lewis acid. The C=C double bonds of such organic systems are activated toward certain reactions, like Diels-Alder additions, and complexes 17-19 show similar chemistry. Complexes 17 and 18 undergo Diels-Alder additions with isoprene, 2,3-dimethyl-1,3-butadiene, tram-2-methyl-l,3-pentadiene, and cyclopentadiene to give Diels-Alder products 20-23 as shown in Scheme 1 for complex 17 (32). Compounds 20-23 are prepared in crude product yields of 75-98% and are isolated as analytically pure solids in yields of 16-66%. The X-ray structure of the isoprene product 20 has been determined and the ORTEP diagram (shown in Fig. 3) reveals the regiochemistry of the Diels-Alder addition. The C-14=C-15 double bond distance is 1.327(4) A, and the... [Pg.52]

Metals, mainly Mg and Fe, in simple reversible equilibrium chemistry (complex ion chemistry) also linked to controls... [Pg.224]

The azamacrocycle 1,4,7-triazacyclononane (tacn) and its tris(A -methyl) analog (Me3tacn) are popular ligands in macrocyclic chemistry. Complexes of both and M (M = Ru, Os) containing the tacn ligand are dealt with together in this section along with several dinuclear, M—M bonded species. [Pg.655]

The Chemistry Complexes Containing 2,2 -Bip5Tidyl, 1,10-Phenan-throline, or 2,2, 6, 2"-Terp5u-idyl as Ligands W. R. McWhinnie andJ. D. Miller... [Pg.411]

The higher valent nickel complexes with saturated amine donors have little more than a transient existence as independent species in solution and consequently have a limited chemistry. Complexes with stronger donor ligands have a more extensive chemistry. [Pg.247]

The immense number of chemical compounds formed by the halogens provides chemists with an extraordinary database from which numerous chemical and physical phenomena can be correlated with respect to various periodic trends. From databases like Inorganic Crystal Structure Data (ICSD, http //www.fiz-karlsruhe.de ) and International Centre for Diffraction Data (ICDD, http //www.icdd.com) with 67 000 and 25 000 entries, respectively, one can easily make out that halides are one of the dominant classes of compounds besides oxides. Even within the subset of inorganic solids, there is tremendous diversity of composition, stracture, and properties and to summarize this would create its own encyclopedia. Therefore, the discussion in this article is limited primarily to binary halides, their structures, and some of their properties, except halides of elements which are nonmetals. Binary actinide hahdes are discnssed elsewhere see Actinides Inorganic Coordination Chemistry). Complex hahdes (sohd phases containing two or more kinds of metal ions), ... [Pg.1475]

One of the classical tetradentate Schiff bases is the open-chain N2O2 donor ligand salen (137), which has flexibihty sufficient to permit it to form different geometric isomers on complexation. The ability of the ubiquitous salen and close analogues to bind O2 reversibly as its cobalt complex, as in [(02)Co(salen)(py)], has been central to most investigations of its coordination chemistry. Complexes of the [Co(salen)] family also mediate the electrocatalytic reduction of O2 to H2O2, whereas those incorporating chiral centers on... [Pg.2706]

Supramolecular chemistry is poised to make a big impact on numerous fields of science including molecular biology as well as chemistry. Complex structures that would be impossible to prepare in a stepwise fashion with covalent bonds are easily formed by the self-assembly process. The advances to date notwithstanding, there is much to learn about the molecular basis of self-organization. Given that one of the holy grails of chemistry is to unravel the processes of evolution and adaptation displayed by biological systems, it is clear that supramolecular chemists have their work cut out for them. [Pg.5724]

Experimental works which do not need expensive equipments could compete with works in the world rather early compared with other fields of solution chemistry. Complex formation studies by the pH-metry using glass electrodes, studies on weak ion-ion interactions by the conductometry, investigations of properties and structures of solutions by the UV-visible and IR spectrophotometry, and oxidation-reduction studies on ionic species by using polarography are typical examples in solution chemisny studies in Japan in the early stage after the second world war. [Pg.4]

Polycatenation, polythreading and polyknotting in coordination network chemistry (complexes with Y-lietcrocyclic ligands) 03CCR(246)247. [Pg.163]

Maths for Chemists Volume II Power Series, Complex Numbers and Linear Algebra builds on the foundations laid in Volume I, and goes on to develop more advanced material. The topics covered include power series, which are used to formulate alternative representations of functions and are important in model building in chemistry complex numbers and complex functions, which appear in quantum chemistry, spectroscopy and crystallography matrices and determinants used in the solution of sets of simultaneous linear equations and in the representation of geometrical transformations used to describe molecular symmetry characteristics and vectors which allow the description of directional properties of molecules. [Pg.133]

A view of the structure determined by X-ray crystallography of the simple neutral complex [PdBr2(thiomorpholine)2]. The atom locations are represented by probability surfaces, with the smaller the size the better defined is the atom. (Reprinted with permission from Australian Journal of Chemistry, Complexation of constrained ligands piperazine, N-substituted piperazines and thiomorpholine by Sarah E. Clifford, Geoffrey A. Lawrance, et al., 62, 12 Copyright (2009) CSIRO Publishing)... [Pg.84]


See other pages where Complex chemistry is mentioned: [Pg.521]    [Pg.52]    [Pg.597]    [Pg.755]    [Pg.1073]    [Pg.65]    [Pg.166]    [Pg.213]    [Pg.92]    [Pg.19]    [Pg.245]    [Pg.496]    [Pg.783]    [Pg.317]    [Pg.339]    [Pg.155]    [Pg.1150]    [Pg.1536]    [Pg.1572]    [Pg.1572]    [Pg.1864]    [Pg.5223]    [Pg.5227]    [Pg.5476]    [Pg.9]    [Pg.142]    [Pg.2]    [Pg.389]    [Pg.393]    [Pg.580]    [Pg.132]    [Pg.441]    [Pg.350]    [Pg.205]   
See also in sourсe #XX -- [ Pg.16 , Pg.65 , Pg.67 ]




SEARCH



A) and (B) Trends in Complex Chemistry

APPLICATIONS OF QUANTUM CHEMISTRY TO METAL COMPLEXES IN AQUEOUS SOLUTIONS

Acetylide complexes cluster chemistry

Alkyl complexes chemistry

Alkylidene complexes chemistry

Alkylidyne complexes chemistry

Alkyne complexes chemistry

Aluminium to thallium salts of oxoacids, aqueous solution chemistry and complexes

Analytical chemistry sample complexity

Aqueous solution chemistry and complexes

Aqueous solution chemistry and macrocyclic complexes

Aqueous solution chemistry including macrocyclic complexes

Aqueous surface chemistry of oxides and complex oxide minerals

Arene complexes ferrocene chemistry

Aryl complexes chemistry

Atmospheric Chemistry Simulation with Extended Fe(III) Complex Photochemistry in CAPRAM

Basic Chemistry of Transition Metal Complexes and Their Reaction Patterns

Benzene complexes, ferrocene chemistry

Benzyl complexes chemistry

Beryllium complex chemistry

Bioinorganic chemistry, of sulfoxide complexes

Block metal chemistry coordination complexes

Catalyst combinatorial chemistry complexes

Challenges of Complexity in Chemistry and Beyond

Chelate complexes structural chemistry

Chemistry Reactions of Complexes

Chemistry carboxylate complexes

Chemistry complex sugars

Chemistry of Carbon-Functional Alkylidynetricobalt Nonacarbonyl Cluster Complexes

Chemistry of Cyclopentadienyl and Related Complexes

Chemistry of Specific Complexes

Chemistry of Thioether Macrocyclic Complexes

Chemistry of Transition Metal Carbene Complexes

Chemistry of complexes

Chemistry of iron complexation

Chloro complexes structural chemistry

Chromium complexes phase chemistry

Cluster chemistry cyanide-bridged complexes

Cluster chemistry dinuclear/trinuclear complexes

Cluster chemistry tetranuclear complexes

Cluster chemistry trinuclear complexes

Cobalt complexes coordination chemistry

Complex chemistry of technetium

Complex lipids, chemistry

Complex molecules, synthesis chemistry

Complex oxide minerals, aqueous surface chemistry

Complex-formation, chemistry

Complexes coordination chemistry concepts

Complexes organometallic redox chemistry

Complexes structural chemistry

Complexity, in chemistry

Computational Chemistry, Molecular Complexity and Screening Set Design

Coordination chemistry binuclear complexes

Coordination chemistry chiral metal complexes

Coordination chemistry complex synthesis

Coordination chemistry hydroxide complexes

Coordination chemistry lanthanide complexes

Coordination chemistry ligand complexes

Coordination chemistry mononuclear complexes

Coordination chemistry oxide complexes

Coordination chemistry solvento complexes

Coordination chemistry, metal enolato complexes

Coordination chemistry, supported metal complexes

Coordination complexes chemistry

Copper complexes 3+1] coordination chemistry

Copper complexes aqueous solution chemistry

Copper complexes biomimetic chemistry

Copper complexes lanthanide-coordination chemistry

Cyclopentadienyl complexes structural chemistry

Dihydrido Iridium Triisopropylphosphine Complexes From Organometallic Chemistry to Catalysis

Dithioacid complexes chemistry

Enzyme chemistry dinitrogen complexes

Excited complexes, chemistry

Fluoro complexes structural chemistry

Gas-phase coordination chemistry complexes

Host-Guest Complexation Chemistry

Host-guest chemistry complex

Hydrazido complexes chemistry

Inclusion chemistry cyclodextrin complexes

Inclusion complexes host-guest chemistry

Inclusion complexes lanthanide-coordination chemistry

Inorganic chemistry complex ions

Inorganic chemistry complex reactivity

Inorganic chemistry complexes

Inorganic chemistry diamagnetic complex

Inorganic chemistry paramagnetic complex

Inorganic chemistry transition metal coordination complexes

Iron complex-based catalysts activation chemistry

Iron complexes bispidine ligands, oxidation chemistry

Iron complexes chemistry

Iron complexes redox chemistry

Its Basic Chemistry and Advantages as a Metal Complexation Process

Ketene chemistry metal carbene complexes

Lanthanide chemistry Complex stability

Modem Synthetic Methods in Carbohydrate Chemistry: From Monosaccharides to Complex Glycoconjugates

Molybdenum complexes chemistry

Molybdenum complexes, carbene chemistry

Nickel complexes structural chemistry

Nitrosyl complexes chemistry

Organometallic chemistry carbonyl complexes

Organometallic chemistry complexes

Organometallic chemistry iridium complexes

Organometallic chemistry palladium complexes

Paramagnetic metal complex chemistry

Platinum complexes chemistry

Protein supramolecular chemistry enzyme complexes

Proton complexes solution chemistry

Quantum chemistry model complexes

Solution Chemistry of Proton Complexes

Solution Chemistry of Rare Earth Complexes with Amino Acids

Solution Chemistry of Rare Earth Complexes with Polyaminopolycarboxylic Acids

Some Chemistry of Vinylidene Complexes

Structural Chemistry of Lanthanide Alkoxide Complexes

Structural Chemistry of Organo-Transition Metal Complexes

Structural Chemistry of Rare Earth Complexes with Amino Acids

Structural Chemistry of Rare Earth Complexes with Polyaminopolycarboxylic Acids

Sulfoxide complexes bioinorganic chemistry

Supramolecular chemistry mononuclear complexes

Supramolecular chemistry polynuclear complexes

Surface chemistry Group 8 complexes

Surface chemistry chromium complexes

Surface chemistry manganese complexes

Surface chemistry molybdenum complexes

Surface chemistry tungsten complexes

Synthetic Applications of Organonickel Complexes in Organic Chemistry

Technetium complexes chemistry

Tetravalent chemistry cyclopentadienyl complexes

Tetravalent chemistry ligand complexes

The Chemistry of Complex

The Chemistry of Complex Aluminohydrides

The Chemistry of Complex Aluminohydrides E. C. Ashby

The Chemistry of Complexes Containing W. R. McWhinnie and J. D. Miller

The Chemistry of Particular Hydride Complexes

The Chemistry of Ruthenium Oxidation Complexes

The Chemistry of Sulfoxide Complexes

The Chemistry.of Complexes Containing

The Chemistry.of Complexes Containing 2,2 -Bipyridyl, 1,10-Phenanthroline

The physical organic chemistry of Fischer carbene complexes

Thioether macrocyclic complexes coordination chemistry

Thiophene, organometallic chemistry complexes

Transition complex chemistry

Transition metal complexes chemistry

Trigonal complexes chemistry

Zeolite chemistry complexes

Zirconium complexes reduction chemistry

© 2024 chempedia.info