Binuclear -bridged

Schmidbaur, H., Hartmann, C., Riede, J.. Huber, B. and Muller, G. (1986) Alkylation Of Methylene-Bridged And Ylide-Bridged Binuclear Gold(III) Complexes. Organometallics, 5(8), 1652—1656. 

Strekas TC, Spiro TG. 1975. Resonance Raman spectra of superoxide-bridged binuclear complexes. p,-Superoxo-decacyanodicobaltate(5—) and /n-superoxo-decaamminedicobalt (5 +). Inorg Chem 14 1421. 

Despite several decades of studies devoted to the characterization of Fe-ZSM-5 zeolite materials, the nature of the active sites in N20 direct decomposition (Fe species nuclearity, coordination, etc.) is still a matter of debate [1], The difficulty in understanding the Fe-ZSM-5 reactivity justifies a quantum chemical approach. Apart from mononuclear models which have been extensively investigated [2-5], there are very few results on binuclear iron sites in Fe-ZSM-5 [6-8], These DFT studies are essentially devoted to the investigation of oxygen-bridged binuclear iron structures [Fe-0-Fe]2+, while [FeII(p-0)(p-0H)FeII]+ di-iron core species have been proposed to be the active species from spectroscopic results [9]. We thus performed DFT based calculations to study the reactivity of these species exchanged in ZSM-5 zeolite and considered the whole nitrous oxide catalytic decomposition cycle [10],... 

Figure 9 A few schematic examples of mononuclear Fe(II) -porphyrin derivatives used to prevent the irreversible oxidation to oxygen-bridged binuclear Fe(III) derivatives. (a) Picket-fence complexes (b) strapped complexes (c) capped complexes (d) picnic-basket complexes (e) pocket complexes...

Table 4 Some cyano-bridged binuclear complexes of established structure.

The importance of solution equilibria was further demonstrated by NMR studies on the system Cp2ZrMe2/B(C5F5)3, where it could be shown that in the presence of excess Cp2ZrMe2 the methyl-bridged binuclear species (Al) dominates [44]. 

III) form of Lactobacillus plantarum is depicted in Fig. 13 [105,106]. The Mn centers are bridged by oxo, hydroxo, and car-boxylato ligands in a manner similar to the binuclear structures (8-10) in Sect. 16.1.4. A proposed mechanism for hydrogen peroxide dismutation by Mn catalase is presented in Fig. 14. A number of model studies of H2O2 disproportionation employing bridged binuclear Mn complexes have been conducted [107]. 

Bridged binuclear compounds are also frequently formed by smaller ligands, particularly in the presence of chloride ions that can act as /u.-bridging ligands. A typical example is illustrated below [191] ... 

Photoreduction of Some Bridged Binuclear Cobalt Ammines 179... 

Some other bridged binuclear complexes undergo photoreduction upon irradiation with ultraviolet light. Irradiation of... 

An unusual peroxo-bridged binuclear iridium complex containing an Ir—Ir bond has been reported (135a, 135b). The reaction of the electron-... 

In earlier work, no molecular structural data were available on mononuclear M amides, but this has changed markedly in the last three (and particularly last two) decades. Another significant development has been the use of the title compounds, and especially the homoleptic dimethylamides M(NMe2)3, as reagents, or synthons for the preparation of bridging binuclear imides 7 (Section 10.3) or cluster imides (e.g. 3 7) (Section 10.4), or Bi[N(SiMe3)2]3 as a precursor for atomic layer deposition.Heteroleptic amidometal chlorides have featured as precursors to cationic metal(III) amides (Section 10.2.4). 

Metal salts and complexes have also often been used as redox catalysts for the indirect electrochemical oxidation of alcohols. Particularly, the transformation of benzylic alcohols to benzaldehydes has been studies. For this purpose oxoruthe-nium(IV) and oxoruthenium(V) complexes have been applied as redox catalysts. In a similar way, certain benzyl ethers can be cleaved to yield benzaldehydes and the corresponding alcohols using a di-oxo-bridged binuclear manganese complex Electrogenerated 02(804)3 was used to generated 1-naphthaldehyde from 1-naphthylmethanol... 

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