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Sandwich complexes synthesis

In the context of pyridin synthesis from alkynes and nitriles homogeneously catalyzed by (cyclopentadienyl)cobalt complexes (Eq. 13), it was found that electron-withdrawing groups on the cyclopentadienyl ring significantly increase the activity [63]. During the screening of various cobalt half-sandwich complexes... [Pg.111]

Sandwich complexes nickel. 5, 35 Sapphyrins, 2, 888 demetallation, 2, 891 metallation, 2, 891 reactions, 2, 891 synthesis, 2, 889 Sarcoplasmic reticulum calcium/magnesium ATPase, 6, 566 skeletal muscle... [Pg.219]

This route is used for the synthesis of the first pentadecked-sandwich complex by... [Pg.76]

Azaborolyl sandwich complexes can be prepared by metal-vapor synthesis ( 6.5.3.1) ... [Pg.94]

Another elegant synthesis route to borinato ligands and sandwich complexes uses cyanide degradation of otherwise prepared borinato complexes ( 6.5.3.3). The reactions proceed quantitatively to yield borinato ligands and insoluble metal cyanides ... [Pg.100]

Dihydro-l,2-azaborolyl sandwich complexes, available by metal-vapor synthesis ( 6.5.3.3), can be prepared in a greater variety by reaction of metal halides with azaborolyl anions, e.g. " ° ... [Pg.104]

The complex cp Ir[OC(Ph) =NNCOPh], (195), was obtained from the reactions of cp IrNtBu or [cp Ir(/i-OH)3Ircp ]OH with (PhCONH)2. 0 X-ray structural analysis suggests that the product species should be considered as an electronically unsaturated Ir111, 16-electron complex with normal oxide and amido bonds. The synthesis of the chiral half-sandwich complexes (196) and (197) has been detailed.361... [Pg.186]

Astruc et al. [187] reported a nonairon sandwich complex by treating a nona-ol with [C5H5]Fe(q6-p-MeC6H4F)(PF6). In a subsequent report [188], Astruc and Marvaud reported the synthesis of aromatic star molecules with or without a central Fe(/f-C5H5)+ group. These bipyridine and terpyridine terminated dendrimers were further capped with [Ru(bipy)2Cl2] and [Ru(terpy)Cl3], respectively, to afford the corresponding hexa or hepta nuclear complexes. [Pg.79]

Coordination compounds composed of tetrapyrrole macrocyclic ligands encompassing a large metal ion in a sandwich-like fashion have been known since 1936 when Linstead and co-workers (67) reported the first synthesis of Sn(IV) bis(phthalocyanine). Numerous homoleptic and heteroleptic sandwich-type or double-decker metal complexes with phthalocyanines (68-70) and porphyrins (71-75) have been studied and structurally characterized. The electrochromic properties of the lanthanide pc sandwich complexes (76) have been investigated and the stable radical bis(phthalocyaninato)lutetium has been found to be the first example of an intrinsic molecular semiconductor (77). In contrast to the wealth of literature describing porphyrin and pc sandwich complexes, re-... [Pg.491]

Sandwich complexes of porphyrazines are prepared by direct intercalation of lanthanides between two pz ligands, the route commonly utilized for the preparation of porphyrin sandwich complexes. Interestingly, the synthetic method used for the preparation of bis(phthalocyanines), starting from the dinitrile or the dilithium substituted monophthalocyanine, has never been successfully implemented for the synthesis of porphyrazines (77). [Pg.492]

Other homoleptic Lu(III) sandwich complexes 23, 25 (78), and 27 (34), have been prepared accordingly, as in Scheme 6. Zirconium sandwich complexes have been prepared by the method employed by Kim et al. (80) for the synthesis of zirconium porphyrin double deckers reaction of Zr(lV-Et2)4 with the pz ligands 24 (35%) and 26 (61%) produced the corresponding sandwich complexes (28 and 29) (Scheme 6). [Pg.492]

The bare nitrogen analog of dihydroazaborine, where the R substituent on N is effectively replaced by an electron pair, is the azaboratabenzene anion H4C4BRN. The synthesis of this ligand and a ruthenium sandwich complex Cp Ru(H4C4BPhN) that is catalytically active in the acylation of benzyl alcohol have been reported.151... [Pg.43]

The controlled synthesis of carbons adjacent nido- and arachno-carborane anions can be achieved by the reduction of C (cage)-C (cage)-linked o-carboranes with group 1 metals.234-237 Typical examples are illustrated in Scheme 22. These have been found to undergo metallation reactions similar to their carbons apart analogs, forming full- and half-sandwich complexes of lanthanide metals.238... [Pg.256]

Okuda, J. Eberle, T. Half-sandwich Complexes as Metallocene Analogs. In Metallocenes Synthesis, Reactivity, Applications Togni, A., Halterman, R. L., Eds. Wiley-VCH New York, 1998 Vol. 1, pp 415-453. [Pg.262]

Scheme 44. Synthesis of the silsesquioxane titanium half-sandwich complexes 129 and 130. Scheme 44. Synthesis of the silsesquioxane titanium half-sandwich complexes 129 and 130.
The organometallic chemistry of the first-row transition metals generally starts with the binary metal carbonyl organometallic complexes. Noncarbonyl organometallic complexes starting with other easily accessible binary compounds provide entries to a broader spectrum of complexes. In this context, we describe the synthesis of the mixed sandwich complex (tj5-pentamethylcyclopentadienyl) ( j5-cyclopentadienyl) iron as an example of the synthetic utility of the solution-stable derivative (>j5-pentamethyl-cyclopentadienyl) (2,4-pentanedionate) iron. [Pg.214]

Dabirmanesh, Q. and Roberts, R.M.G., The synthesis of iron sandwich complexes by microwave dielectric heating using a simple solid C02-cooled apparatus in an unmodified commercial microwave Oven, /. Organomet. Chem., 1993, 460, C28. [Pg.267]

Bis (indenyl) complexes, with Zr(IV), 4, 935 Bis(indenyl)dimethyl metallocenes, synthesis, 4, 884-885 Bis(indenyl)zirconium sandwich complexes, preparation and reactivity, 4, 728... [Pg.65]

Di(carbene)gold(I) salts, oxidation, 2, 293—294 Dicarbido clusters, with decarutheniums, 6, 1036 Dicarbollide amides, with tantalum, 5, 184 Dicarbollide thorium complexes, synthesis and characterization, 4, 224—225 Dicarbollyl ligands, in nickel complexes, 8, 185 Dicarbonyl complexes arylation with lead triacetates diastereoselectivity, 9, 389 enantioselectivity, 9, 391 mechanisms, 9, 387 reaction examples, 9, 382 indium-mediated allylation, 9, 675 with iridium, 7, 287 reductive cyclization, 10, 529 in Ru and Os half-sandwiches, 6, 508 with Zr—Hf(II), 4, 700... [Pg.94]

Dithiocarbamates, in Ru and Os half-sandwiches, 6, 493 Dithiocarbenes, Pt complexes, 8, 439 Dithiocarboxy ligands, in molybdenum carbonyls, 5, 447 Dithiolate-bridged compounds in dinuclear iron compounds with Fe-Fe bonds, 6, 238 as iron-only hydrogenase biomimetic models, 6, 239 Dithiolate diamides, with Zr(IV), 4, 784 Dithiolene—uranium complexes, synthesis and characterization, 4, 212 Ditopic receptors, characteristics, 12, 489 Ditungsten complexes, associated reactions, 5, 748 Divinyllead diacetates... [Pg.99]

Mixed-sandwich complexes with cyclodextrins, 12, 787 iridium cyclopentadienyl complexes, 7, 368 with nickel, synthesis and reactivity, 8, 160 with vanadium, 5, 47... [Pg.146]


See other pages where Sandwich complexes synthesis is mentioned: [Pg.334]    [Pg.742]    [Pg.174]    [Pg.48]    [Pg.99]    [Pg.108]    [Pg.116]    [Pg.135]    [Pg.42]    [Pg.470]    [Pg.8]    [Pg.43]    [Pg.202]    [Pg.207]    [Pg.218]    [Pg.318]    [Pg.826]    [Pg.653]    [Pg.640]    [Pg.874]    [Pg.123]    [Pg.863]    [Pg.742]    [Pg.74]    [Pg.61]   
See also in sourсe #XX -- [ Pg.492 ]




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