Symmetrical dinuclear compounds

Dinitrogen monoxide reductase, 6, 727 Dinuclear compounds symmetrical nomenclature, 1,122 unsymmetrical nomenclature, 1,123 Dioctylamine... 

IR-7.3.1 Symmetrical dinuclear entities IR-7.3.2 Non-symmetrical dinuclear compounds IR-7.3.3 Oligonuclear compounds IR-7.4 Inorganic chains and rings IR-7.4.1 General IR-7.4.2 Nodal descriptor IR-7.4.3 Name construction IR-7.5 References... 

There are two types of non-symmetrical dinuclear compounds (i) those with identical central atoms differently ligated, and (ii) those with different central atoms. In both cases names are formed by means of the procedure described in Section IR-9.2.5, which also deals with bridging groups. 

The reactions of symmetrical M = M compounds with symmetrical substrates are expected to yield products in which the metal atoms are in equivalent environments. Whenever an exception is found, low energy pathways will readily interconvert the two ends of the dinuclear compound. 

Diphenic acid (H2A) also forms diorganotin(IV) complexes, which are with two monodentate -COO groups. On the other hand, soluble dinuclear triorganotin(IV) complexes (where the organo moieties are Me and Ph) contain symmetrically bound carboxylates, while the less-soluble compound (cHexsSn) has two asymmetrically bonded carboxylates. All have Tbp structures with [RsSnirV)] units remote from each other. °... 

Treatment of the amine 173 (LBu H) in a 2 1 ratio with M[N(SiMe3)2]2(THF)2 (M = Ca, Sr, Ba) in toluene at ambient temperatures affords ( 5-LBut)2M 174 in >93% yields.395 All three compounds possess bent-sandwich structures with -coordinated /3-diketiminato ligands. Similar treatment of the Pr analog of 173 (i.e., LPr H) yields the corresponding calcium and strontium complexes (r 2-LPr )2Ca 175 and (r/s-LPr )2Sr, respectively, in high yield. The reaction of Ba[N(SiMe3)2]2(THF)2 with LPr H yield the -symmetric dinuclear complex 176 (Figure 90). The... 

A substantial number of Mo peroxo complexes has been structurally characterized. These complexes all have nearly symmetrically side-on-bound peroxide. Among them are mononuclear, dinuclear, tetranuclear and heptanuclear compounds. The tetranuclear and hep-tanuclear complexes are related to the isopoly molybdates. Structural studies have identified... 

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