HYBRID-SOLID

HYBRID SOLID RESULT ( logical, name, name list )  

The HYBRID SOLID entity corresponds in the field of solids to what the REAL and INTEGER entities are in the field of arithmetics. A hybrid solid consists of a functional description of a solids model in the form of a CONSTRUCT (referenced by the attribute expression) and its evaluated value in the form of a list of B REP models (referenced by the attribute value). Both the value and the expression must refer to entities that are inside the scope of the hybrid solid. 

The consistency attribute. indicates whether value is consistent with the present expression the update mode indicates when updating of value is to occur Updating may occur whenever the expression (the construct) is modified (in which case consistency will always be true). When the entity is used in an application while consistency was found to be false (in which case any modification of the construct will not cause reevaluation but will just set consistency to false. The subsequent evaluation will set consistency to true again) or else, evaluation (and setting consistency to true) will occur only upon explicit request by the user. 

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Based on the concept of mixed-framework lattices, we have reported a novel class of hybrid solids that were discovered via salt-inclusion synthesis [4—7]. These new compounds exhibit composite frameworks of covalent and ionic lattices made of transition-metal oxides and alkali and alkaline-earth metal halides, respectively [4]. It has been demonstrated that the covalent frameworks can be tailored by changing the size and concentration of the incorporated salt. The interaction at the interface of these two chemically dissimilar lattices varies depending upon the relative strength of covalent vs. ionic interaction of the corresponding components. In some cases, the weak interaction facilitates an easy... 

Over the last few years, we have made a number of novel discoveries using reactive salt fluxes in the crystal growth experiment of mixed-metal oxides. The most important outcome that these salt-inclusion solids have demonstrated is the propensity for structure- directing effects of the employed salt. These hybrid solids have revealed fascinating solid-state structures ranging from nanoclusters to three-dimensional open frameworks of current interest. Solids featuring mag-... 

Layered Perrhenate and Vanadate Hybrid Solids On the Utility of Structural Relationships... 

The flexibility of polyoxovanadate species [VxOy]" to adopt a wide variety of structural configurations, such as rings, chains, and layers, is reflected in their predominance in a wide variety of hybrid solids. For example, approximately sixteen distinct hybrid vanadium oxides based solely on V205 layers, with about nine different layer types, have currently been synthesized [34—47]. Layered structures of... 

Figure 1.15 Helical hybrid silicas chirality transcription from the precursor molecule to the hybrid solid. (Image courtesy of Prof. Joel Morean.)... 

Ferey G, Serre C, Mellot-Draznieks C, Millange F, Surble S, Dutour J, Margiolaki I. A hybrid solid with giant pores prepared by a combination of targeted chemistry, simulation, and powder diffraction, Angew. Chem. Int. Ed. 2004, 43, 6296-6301. 

Qi, Y.-F., Li, Y.-G., Wang, E. et al. (2007) Hydrothermal synthesis and structures of organic-inorganic hybrid solids based on arsenic-vanadate building blocks. Journal of Coordination Chemistry, 60(13), 1403-18. 

The rate of energy and electron transfer in any of these systems is an ensemble average of all sites within the layered assembly, and thus there is no single rate for any of the processes in the assemblies. Nonetheless, in addition to the increased quantum yield, assemblies constructed with the HTiNbOs spacer exhibit a long-lived charge-separated state component not observed in the a-ZrP spaced assemblies, of x = 900 ps. While there is still much to be learned from the study of multi-chromophore arrays, this synthetic approach appears to hold much promise for the creation of organic-inorganic hybrid solid state devices. 

The subsequent section Biomimetic Chemistry presents hybrid solids that were developed according to signaling and recognition processes established in nature (Chapters 19 and 20 by Rurack et al. and Collinson) and concludes with Chapter 21 by Kamperman and Wiesner, who show how nature s strategy of combining biomacromolecules and inorganic skeletons can be transferred to block copolymers... 

We performed the synthesis of a new class of hybrid solids by grafting the coupling CPTMS agent by the sol-gel method rather than the silylation method. Supporting (-)-ephedrine on Al-MTS support with large pores by this new grafting method leads to a chiral hybrid material with a high efficiency in the enantioselective alkylation of benzaldehyde by diethylzinc.15... 

Apply lessons learned from natural enzymes to the design of organometallic complexes and inorganic and hybrid solids that catalyze pathways with unique activity and selectivity. 

The CP step is an essential building block for pulse sequences in solid-state NMR. The easiest ID experiments that are routinely used for characterization of organic, organometallic and hybrid solids are total suppression of spinning sidebands (TOSS), nonquatemary suppression, and so on. 

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