Big Chemical Encyclopedia

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

Articles Figures Tables About

Nickel compounds anionic carbonyl clusters

Although Ni(CO)4 was discovered many years ago, no neutral Ni2(CO)x compound has ever been synthesized in macroscopic amounts. However, several communications report ionic species such as [Ni2(CO)8l+, [Ni2(CO)7], and [Ni2(CO)6]+, where structures with one or two bridging carbonyls are proposed.2418 Plausible structures for neutral Ni2(CO)x (x = 5, 6, 7) have been investigated by theoretical methods, and decomposition temperatures well below room temperature have been predicted.2419,2420 Tetra-, penta-, and hexanuclear nickel carbonyl clusters have been investigated by means of molecular orbital theory. It is found that the neutral forms are more stable than the corresponding anionic forms but the anionic forms gain in stability as the nuclearity rises.2421 Nickel carbonyl cluster anions are manifold, and structural systematics have been reviewed.2422,2423 An example includes the anion [Ni9(CO)i6]2- with a close-packed two-layer metal core.2424... [Pg.497]


See other pages where Nickel compounds anionic carbonyl clusters is mentioned: [Pg.148]    [Pg.176]    [Pg.282]    [Pg.276]    [Pg.16]    [Pg.100]    [Pg.245]   
See also in sourсe #XX -- [ Pg.235 , Pg.241 ]

See also in sourсe #XX -- [ Pg.235 , Pg.241 ]




SEARCH



Anionic carbonyl cluster

Anionic carbonyls

Carbonyl anions

Carbonyl cluster compounds

Carbonyl clusters

Carbonylate anions

Cluster anionic

Cluster anions

Cluster compounds

Cluster compounds carbonyl clusters

Compounds anionic

Nickel carbonyl

Nickel carbonyl clusters

Nickel carbonylation

Nickel clusters

Nickel compounds

© 2024 chempedia.info