Big Chemical Encyclopedia

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

Articles Figures Tables About

Ligands compounds

There is also clear evidence of a change from predominantly class-a to class-b metal charactristics (p. 909) in passing down this group. Whereas cobalt(III) forms few complexes with the heavier donor atoms of Groups 15 and 16, rhodium(III), and more especially iridium (III), coordinate readily with P-, As- and S-donor ligands. Compounds with Se- and even Te- are also known. Thus infrared. X-ray and nmr studies show that, in complexes such as [Co(NH3)4(NCS)2]" ", the NCS acts as an A -donor ligand, whereas in [M(SCN)6] (M = Rh, Ir) it is an 5-donor. Likewise in the hexahalogeno complex anions, [MX ] ", cobalt forms only that with fluoride, whereas rhodium forms them with all the halides except iodide, and iridium forms them with all except fluoride. [Pg.1129]

The HF wave funetion eontains equal amounts of ionie and eovalent eontributions (Section 4.3), For covalently bonded systems, like H2O, the HF wave funetion is too ionie, and the effect of electron correlation is to increase the covalent contribution. Since the ionic dissociation limit is higher in energy than the covalent, the effect is that the equiUbrium bond length increases when correlation methods are used. For dative bonds, such as metal-ligand compounds, the situation is reversed. In this case the HF wave function dissociates correctly, and bond lengths are normally too long. Inclusion of... [Pg.265]

While unmodified xanthene ligands (compound a in Figure 5.2-4) show highly preferential solubility in the organic phase in the biphasic l-octene/[BMIM][PFg] mixture even at room temperature, the application of the guanidinium-modified xanthene ligand (compound b in Figure 5.2-4) resulted in excellent immobilization of the Rh-catalyst in the ionic liquid. [Pg.238]

For sterically less demanding ligands, compounds 3 can be generated in situ by various methods [4], and have found wide application for the synthesis of tri- or tetracoordinate M(0) or M(II) derivatives 6 or 7. [Pg.233]

A series of neutral hexacoordinate phosphorus(v) compounds have been synthesized making use of an acidic phosphorus atom and a coordinating ligand. Compound 39 represents a bicyclic bridgehead phosphorus compound produced <1996IC325>. [Pg.534]

The use of the sulfoxantphos ligand (compound (b) in Figure 7.8) in the biphasic hydroformylation of 1-octene with [BMIM][PF6] has been studied by Dupont and coworkers [58], The ligand allowed recycling of the catalyst solution up to four times with no loss in activity or selectivity. Flighly regioselective hydroformylation (n/iso = 13) was reported for a Rh/phosphine-ratio of 4 (100°C, 15 bar syngas pressure). [Pg.196]

Many of the metal-organic catalysts that are utilized today in catalytic processes can be considered as metal ligand compounds. The general synthetic approach is to identify scaffolds, which lead to an easy access of a library of considerable diversity Figure 11.10 illustrates this approach. Usually ligands that contain heteroatoms (such as imines or phosphines) are the preferred compounds that give... [Pg.386]

The overall procedure is called MetaSite (site of metabolism prediction) [32]. The M IF calculations, pharmacophoric recognition, descriptor handling, similarity computation, reactivity computation, inhibition and subselectivity are calculated automatically once the ligand compound(s) is(are) provided. The complete calculation is performed in few seconds in IRIX Linux or Windows environments. [Pg.290]

At low temperature, the emission spectra of the complexes are well-structured and assigned to ligand-localised nn phosphorescences , responsible for multiexponential luminescence decays observed with mixed-ligand compounds [125,126],... [Pg.60]


See other pages where Ligands compounds is mentioned: [Pg.114]    [Pg.176]    [Pg.210]    [Pg.297]    [Pg.95]    [Pg.84]    [Pg.132]    [Pg.300]    [Pg.464]    [Pg.975]    [Pg.558]    [Pg.180]    [Pg.973]    [Pg.21]    [Pg.195]    [Pg.196]    [Pg.680]    [Pg.381]    [Pg.173]    [Pg.468]    [Pg.469]    [Pg.93]    [Pg.171]    [Pg.125]    [Pg.234]    [Pg.290]    [Pg.307]    [Pg.328]    [Pg.372]    [Pg.75]    [Pg.227]    [Pg.34]    [Pg.257]    [Pg.318]    [Pg.318]    [Pg.319]    [Pg.409]    [Pg.409]    [Pg.617]    [Pg.1350]    [Pg.1358]   
See also in sourсe #XX -- [ Pg.518 , Pg.519 ]




SEARCH



Albumin, ligand exchange reactions with compounds

Amino alcohol ligands copper compounds

Antibiotic Ligands and Model Compounds

Axial chiral compounds ligands

Boron Compounds with Oxygen Ligands

Bridging ligands coordination compounds

Carbonyl compounds ligands

Carbonyl compounds, electron ligand interaction

Chiral compounds monodentate ligands

Chloride compounds nitrogen ligands

Cluster Compounds with Gallium Ligands

Cluster compounds ligands

Compound libraries ligand discovery using

Compounds Containing an X,Y-Carboranyl Chelating Ligand

Compounds containing carbonyl ligands

Compounds containing polydentate ligands

Compounds of Polydentate Ligands

Compounds of the Pentamethylcyclopentadienyl Ligand (CsMes Cp)

Compounds related by central metal ion or ligand grouping

Compounds with Heteroatom Five-membered Ring Ligands

Compounds with Macrocyclic Ligands

Compounds with Ring-bridged Cyclopentadienyl Ligands

Compounds, attaching ligands

Coordination Compounds with Carboxylic Acid as Ligand

Coordination compounds Homogeneous catalysis Ligands, Metal

Coordination compounds bidentate ligands

Coordination compounds chelating ligands

Coordination compounds hydrazide ligands

Coordination compounds ligand arrangements

Coordination compounds ligand field theory

Coordination compounds ligand replacement reaction

Coordination compounds ligand substitution

Coordination compounds ligands

Coordination compounds metal-ligand bond

Coordination compounds metal-ligand resonance interaction

Coordination compounds monodentate ligands

Coordination compounds polydentate ligands

Copper compounds salen ligands

Cp2LnX compounds with P ligands

Cp2LnX compounds with amide and related N-donor ligands

Cp2LnX compounds with borohydride and hydride ligands

Cyclic compounds ligands

Cyclopentadienyl ligand Group 2 compounds

Cyclopentadienyl ligand compounds

Cyclopentadienyl ligands compounds with

Dinickel compounds ligand

Five-ligand compounds

Five-ligand compounds, valence-shell

Four-ligand compounds

Four-ligand compounds, valence-shell

Germanium compounds ligand substitution

Gold compounds ligand substitution

Inorganic Diazo Compounds and Metal Complexes with Dinitrogen as Ligand

Inorganic compounds ligand complexes

Iron compounds ligand substitution

Iron compounds with cyclopentadienyl ligands

Iron compounds with phosphine ligands

Josiphos ligand compounds

Lead compound production ligand binding

Ligand CoupUng Reactions with Heteroatomic Compounds

Ligand Coupling Reactions with Heteroatomic Compounds

Ligand PPh3 compounds with

Ligand compounds with bridging alkylidene

Ligand coordination to oxybis(triarylbismuth) compounds

Ligand effects on redox potentials of coordination compounds

Ligand exchange between dialkylmagnesium compounds

Ligand exchange processes carbonyl compound

Ligand interactions lead compounds

Ligand substitution reactions compounds

Ligand-alkoxide compounds, mixed

Ligands coordination compounds and

Ligands in coordination compounds

Ligands nitrogen compounds

Ligands organometallic compounds

Ligands tetravalent lanthanide compounds

Light ligand compounds

Macrocyclic complexes with ligands based on 1,3-dicarbonyl compounds and 1,2- or 1,3-diamines

Magnesium compounds with phosphorus ligands

Manganese compounds salen ligands

Metal-silicon bond compounds ligands

Mixed ligand compounds

Nitrogen compounds amino alcohol ligands

Nitrogen compounds donor ligands

Nitrogen compounds imine-based ligands

Nitrogen donor ligands compounds containing

Oligomeric and Polymeric Copper Coordination Compounds Assembled by Thioether Ligands

Organometallic Compounds and Metal-Ligand Complexes

Organometallic Compounds with Perfluorinated Ligands

Organometallic compounds bridging ligands

Organometallic compounds ligand names

Organometallic compounds with bridging ligands

Organotin Compounds Containing a C,Y-Chelating Ligand

Other ligand-bridged compounds

Palladium Compounds, Complexes, and Ligands Widely Used in Organic Synthesis

Palladium compounds ligand analysis

Palladium compounds, complexes and ligand

Phosphine ligands allylic compounds

Planar chiral compounds bidentate ligands

Polydentate ligands synthesis of compounds

Polynuclear compounds bridging ligands

Ring-bridged cyclopentadienyl ligands lanthanide compounds

Ruthenium compounds with chiral ligand

Ruthenium compounds with cyclopentadienyl ligands

Seven-ligand compounds

Stability of Compounds Containing le Ligands

Structure of Compounds with 4e Ligands

Structures of some 7r-organometallic compounds containing allyl groups as ligands

Titanium compounds cyclopentadienyl ligands

Transition Metal Compounds and Organic Ligands as Catalysts

Vanadium compounds ligand environment

Vanadium coordination compounds chelating ligands

© 2024 chempedia.info