Ethane, tris complexes structure

Ethane, (K)-l-cyclohexyl-L2-bis(diphenylphosphino)-rhodium complexes asymmetric hydrogenation, 6,253 Ethane, tetracyano-metal complexes, 2,263 Ethane, tetrakis(aminomethyl)-metal complexes, 2, 56 Ethane, tris[l, 1, l-(trisaminomethyl)]-complexes structure, 1,26... 

Abstract New applications of ID and 2D solid state (SS) NMR spectroscopy in structural studies of inclusion complexes (ICs) formed by organic host lattices (cyclodextrins, calixarenes, cyclophosphazenes, and fullerenes) are described. Each section of the review gives short characteristics of host molecules and recent applications of SS NMR. Less common systems, which are interesting as models for SS NMR studies, (bis[6-0,6-0 -(l,2 3,4-diiso-propylidene-a-D-galactopyranosyl) thiophosphoryl] disulfide (DGTD) and 1,2-dichloro-ethane/tris(5-acetyl-3-thienyl) methane (TATM)), are also discussed. 

Suzuki et. al. reported [99] the preparation of metal(III)-tripodal tridentate phosphine complexes of the type [MCL(acac)(tdmme)]PF6 where M = Co and Rh acac = pentane-2,4-dionate tdmme = l,l,l-tris(dimethylphosphinomethyl)ethane. The crystal structure and spectroscopic properties of the complexes were evaluated. Recently, the preparation, crystal structure and spectroscopic properties of novel series of complexes pVl Cl3.nP3-n] (M = Co, Rh n = 0, 1, 2, 3) containing tripodal tridentate phosphine, 1,1,1-... 

Fernandez, E.J., Gimeno, M.C., Jones, P.G., Laguna. A.. Laguna, M. and Olmos, E. (1996) Synfiiesis of heteropolynudear complexes with 1,1,1-tris (diphenylphosphinomethyl)ethane. Crystal structure of [(OC)4Mo (Ph PCHJjCMelCHjPPhjDAuCl). Journal of the Chemical Society, Dalton Transactions, (17), 3603—3608. 

Bulk electrochemical reduction of the platinum(IV) complex of the tridentate ligand l,l,l-tris(aminomethyl)ethane(tame), [Pt(tame)2]4+, leads to the quantitative formation of [Pt(tame)2]2+ (28), in which one of the amine donor groups in tame remains noncoordinated.141 The X-ray structure of the diprotonated complex [Pt(Htame)2]4+, as its tetrachlorozincate(II) salt, is also reported. 

On refluxing in THF, VC13 reacted with triarsines to yield red-brown complexes [VCl3(TAS)j (TAS = bis(dimethyIarsinophenyl)methylarsine or l,l,l-tris(dimethylarsinomethyl)ethane). These are non-electrolytes, and the ligand is terdentate. Both have a facial structure. 

Under anhydrous conditions, tetranuclear vanadium clusters such as [V404 (0CH2)3CCH3 3(0C2H5)3] can be generated in alcoholic solutions with l,l,l-tris(hydroxymethyl)ethane. The coordination does vary somewhat with the alcohol utilized in the preparation, but all retain the tetranuclear structure. Each vanadium nucleus in the complex has octahedral coordination. The clusters are not stable to hydrolysis and decompose in chloroform solution in the presence of just a few equivalents of water [5],... 

The novel aspect of this mechanism to be demonstrated is the mode of substrate activation. Synthetic complexes have been useful in corroborating aspects of the proposed mechanism. Bianchini et al. demonstrated reversible dioxygen adduct formation for [(tri-phos)M "(catecholate)] [triphos = l,l,l-tris(diphenylphosphinomethyl)ethane M = Rh, Ir] complexes ". A crystal structure of the Ir adduct reveals the formation of an alkylperoxy moiety, similar to that proposed in the mechanism, coordinated in a tridentate manner to the metal center. However, oxidative ring cleavage of the complexes does not occur. 

Redox activity of bimetallic complexes based on tris(3,5-dimethylpyrazolyl)-borato molybdenum(II) and tungsten(II) nitrosyls. Complexes derived from ethane-1,2-diol and the crystal structure of anti [Mo(NO) HB(3,5-Me2C3HN2)3 -(0CH2CH20)]24CHCl3... 

The tris(arylimido)iodotcehnetium(Vll) complex lc(NAr)011 (Ar = 2,6 diisopro-pylphenyl). mentioned in the last paragraph of Sect. 12.1, is reduced by elemental sodium in TUT to the green dimer [Tc fNAr),] of staggered ethane-like structure ... 

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