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Clustering reactions

Trevor D J, Whetten R L, Cox D M and Kaldor A 1985 Gas-phase platinum cluster reactions with benzene and several hexanes evidence of extensive dehydrogenation and size-dependent chemisorption J. Am. Chem. Soc. 107 518... [Pg.2403]

Silicon cluster reactions are an example of a newly emerging field of research which is very amenable to study with electronic structure methods. This exercise will examine the potential surface for silicon cation reacting with silane (SiH4). Such reactions are central to the growth of large silicon clusters, which occurs by sequential additions of -SiHj ... [Pg.199]

Silicon Cluster Reactions S t 2 Reaction Hydration Reactions... [Pg.211]

Figure 7. Time-of-flight mass spectra showing results of platinun cluster reactions with benzene. The lower trace is clean metal without reactant. The upper trace is with the pulsed addition of. 21 % benzene in heliun. The notation indicates the nmber of adducts on each metal cluster. The metal cluster are all two photon ionized, while the observed products are single photon ionized, hence the enhancement of the product over metal signals. Reproduced from Ref. 17. Figure 7. Time-of-flight mass spectra showing results of platinun cluster reactions with benzene. The lower trace is clean metal without reactant. The upper trace is with the pulsed addition of. 21 % benzene in heliun. The notation indicates the nmber of adducts on each metal cluster. The metal cluster are all two photon ionized, while the observed products are single photon ionized, hence the enhancement of the product over metal signals. Reproduced from Ref. 17.
Even if atomic oxygen-carbon cluster reactions are rapid, as is assumed in the new neutral-neutral model, the synthetic power of this model can be recovered if exothermic hydrogen atom abstraction reactions of the sort,... [Pg.30]

Recently, similar findings133 have been made in studies of the photoionization of NO containing water clusters134 which established that the cluster reaction analogous to the last step in reaction 36 occurs for n > 4. [Pg.221]

Another interesting situation which demonstrates the role of solvation on cluster reactions, with particular relevance to identifying mechanisms of possible importance in the condensed phase, concerns the initiation of electron transfer reactions. Interesting examples include those initiated through Penning ionization.161... [Pg.235]

KriP is readily calculated by considering the inner-shell clustering reactions... [Pg.340]

Vacher R., Le Due E., and Fitaire M. (2000). Clustering reactions of HCNH+, HCNH+ (N2) and HCNH+ (CH4) with ethane application to Titan atmosphere. Planetary and Space Science 48 237-247... [Pg.332]

Tandem mass spectrometry H6,i46) both stationary 116> and flowing afterglow-methods 118,147) and drift tube techniques U6> have also been applied to some of the clustering reactions. Results for the gas-phase solvation of H+ by H2O and NH3 generally agree well with the values obtained by high pressure mass spectro-metric observations 148). [Pg.42]

Figure 11. Van t Hoff plot [ln(/(g<,) vs. 7 ] for the clustering reaction of Cl onto CH3CI, from which A/-/° and AS for the clustering reaction can be derived. Figure 11. Van t Hoff plot [ln(/(g<,) vs. 7 ] for the clustering reaction of Cl onto CH3CI, from which A/-/° and AS for the clustering reaction can be derived.
Anilinocyclophosphazene, 21 72 Anionic carbonyl cluster, reaction with cationic mononuclear complexes, 30 155-158... [Pg.11]

Heptadecararbonylhexaosmium clusters, reactions with nucleophiles, 30 196 Heptafluorides, structures, 27 108 Heptafluoro-n-propyl phosphorus compounds, 3 378... [Pg.127]

In order to confirm the saturation in 9a, free-energy changes for the following stepwise clustering reactions were calculated ... [Pg.386]

The complex FeCo2(CO)9(PC6H5) is black in the crystalline state and purple in solution. It is moderately air sensitive. It has a low solubility in aliphatic hydrocarbons and a moderately good solubility in aromatic hydrocarbons. In cyclohexane solution it shows Vco bands at 2101 (vs), 2059 (vs), 2048 (vs), 2039(vs), 1981 (w), 1969(w)cm 1. It has been used for various types of basic metal cluster reactions.16... [Pg.354]

In a 1988 article, Kroto observed, Initially, cluster reactions were probed which showed that C (n > 30) clusters did indeed react with H and N to form polyynes, which had been delected in space, a result satisfyingly consistent with the idea of a stellar source of interstellar chains. The larger clusters were totally inert, and as the experiments progressed, it became impossible to ignore the antics of the Cm peak which varied from relative insignificance to total dominance, depending on the clustering conditions. [Pg.287]

Reaction of the bis(diphenylphosphino)methane (dppm) complex PdPt-(yi-dppm)2Cl2 (132) with carbonylate anions affords several tri- and tetranuclear clusters. Reactions are outlined in Scheme 7. Treatment of 132 with 2 mol equivalents of [Fe(CO)3(NO)] (796,797), [Co(CO)4] (196,198), or [Mn(CO)5] (196,197) results in the tetranuclear spiked triangular clusters 133,134, or 135. Crystal structures on the dipalladium analogues of 134 and 135 have been reported (797,799). Grossel et al. (136) and Braunstein et al. (200) have independently reported that reaction of 132 with 1 mol equivalent of [Fe(CO)4]2 at ambient temperatures leads to an inseparable 1 1 mixture... [Pg.377]


See other pages where Clustering reactions is mentioned: [Pg.301]    [Pg.88]    [Pg.98]    [Pg.368]    [Pg.284]    [Pg.210]    [Pg.248]    [Pg.285]    [Pg.218]    [Pg.220]    [Pg.127]    [Pg.139]    [Pg.139]    [Pg.313]    [Pg.148]    [Pg.262]    [Pg.63]    [Pg.182]    [Pg.222]    [Pg.34]    [Pg.60]    [Pg.134]    [Pg.204]    [Pg.208]    [Pg.17]    [Pg.316]    [Pg.169]   
See also in sourсe #XX -- [ Pg.56 ]

See also in sourсe #XX -- [ Pg.264 ]




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Aggregation reactions cluster synthesis

Alkenes reactions with metal carbonyl clusters

Alkynes, reactions with carbonyl clusters

Aluminum clusters, reactions with

Aluminum clusters, reactions with oxygen

Aluminum clusters, reactions with water

Ammonia reaction with iron clusters

Benzene, reactions with platinum clusters

Borane cluster compounds reactions

Carbon monoxide addition reactions with clusters, metal cluster

Carbonyl clusters condensation reactions

Cluster aggregation, diffusionlimited/reaction-limited

Cluster chemistry ligand dissociation reactions

Cluster closure reactions, oxidative

Cluster compounds expansion reactions

Cluster compounds reactions

Cluster growth reactions

Cluster ions reactions with acetylene

Cluster isolated chemical reactions

Cluster reaction studies

Cluster reactions

Cluster-Catalysed Hydrogenation Reactions

Cluster-isolated chemical reaction, CICR

Cluster-opening reaction

Clustering reaction isotopic studies

Clusters acide-base reactions

Clusters carbonyl substitution reactions

Clusters high temperature reactions

Clusters oxidation-reduction reactions

Clusters proton transfer reactions

Clusters reaction between

Clusters reaction with anilines

Clusters unimolecular reaction kinetics

Clusters, metal reactions

Cobalt clusters catalytic reactions involving

Cobalt clusters reaction with carbon monoxide

Copper clusters, reactions with

Copper clusters, reactions with carbon monoxide

Copper clusters, reactions with hydrogen

Enzyme reactions, quantum chemical cluster model approach

Fischer-Tropsch reaction carbonyl clusters

For clustering reactions

Giant Cluster Catalyzed Reaction

Gold phosphine complexes, reactions with metal clusters

High nuclearity metal carbonyl clusters reactions

High-nuclearity carbonyl clusters reactions

High-nuclearity carbonyl clusters reduction reactions

Homogeneous Cluster Catalyzed Reactions

Homologation reactions, metal clusters

Hydration and dehydration reactions of cluster-bound propargyl alcohols

Hydrogen addition reactions with cluster size-dependent

Hydrogen addition reactions with clusters

Hydrogen sulfide, reaction with iron clusters

Intra-cluster reaction

Iridium clusters, reaction with carbon

Iron clusters catalytic reactions involving

Iron clusters reaction with

Iron complexes, electron-transfer reactions clusters

Iron-molybdenum-sulfur clusters reactions

Iron-sulfur clusters oxidation-reduction reactions

Iron-sulfur clusters substitution reactions

Lewis base addition reactions with clusters

Ligand Substitution Reactions in Carbonyl Metal Clusters

Main group-transition metal cluster substitution reactions

Metal clusters abstraction reaction

Metal clusters phosphine reactions

Metal-carbonyl clusters reactions

Metallic clusters colliding with atoms, reaction dynamics

Methane, reaction with iron clusters

Mixed-metal clusters reactions

Nickel clusters catalytic reactions involving

Niobium clusters, reactions with

Niobium clusters, reactions with hydrogen

Nitrogen addition reactions with metal clusters

Nitrogen oxide clusters reaction with

Nitrosyl clusters substitution reactions

Osmium carbonyl clusters reaction with base

Osmium carbonyl clusters reactions

Osmium-platinum cluster reaction

Oxidation-reduction reactions of iron-sulfur clusters

Oxygen molecule reaction with cluster anions

Palladium clusters reaction with

Phosphines, reactions with high-nuclearity carbonyl clusters

Platinum clusters reaction with

Preparation and Reactions of the FeMo Cofactor Model Clusters

Reaction-limited cluster aggregation

Reaction-limited cluster aggregation RLCA)

Reaction-limited cluster aggregation mechanism

Reaction-limited cluster aggregation, example

Reactions Involving Chalcogeno Mo and W Clusters

Reactions Leading to Structural Changes in Clusters

Reactions molecular clusters

Reactions of Bidentate Phosphines with Metallaboranes Possible Routes to Linked Cluster Systems

Reactions of Clusters

Reactions of Clusters with Unsaturated Ligands

Reactions of High-Nuclearity Carbonyl Clusters

Reactions of Hydrated Hydronium Clusters

Reactions of niobium-containing met-cars and titanium carbide clusters with acetone

Reactions with Changes in Cluster Oxidation State

Reduction reactions cluster build

Rhodium clusters reaction with

Ruthenium carbonyl clusters reactions

Ruthenium clusters reaction with carbon monoxide

Ruthenium complexes, reactions cluster catalysis

Ruthenium, alkyne-bridged clusters reactions

Ruthenium-platinum cluster reaction

Silicon cluster reactions

Solid-gas Reactions Involving Metal Carbonyl Clusters

Solid-gas reactions involving lightly stabilized transition metal clusters

Solid-gas reactions involving unsaturated transition metal clusters

The Roles of Cluster Structure in Copper-mediated Reactions

Transition metal clusters oxidation reactions

Transition metal clusters oxidative addition reactions

Transition metal clusters reactions

Transition metal clusters reduction reactions

Transition metal clusters substitution reactions

Tungsten clusters, reaction with carbon

Turn-Over Frequencies of Catalytic Reactions on Supported Clusters

Vanadium clusters reaction with

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