Chemistry involves the study of all things chemical – chemical processes, chemical compositions and chemical manipulation – in order to better understand the way in which materials are structured, how they change and how they react in certain situations.499-40-1, Name is (2R,3S,4R,5R)-2,3,4,5-Tetrahydroxy-6-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanal, molecular formula is C12H22O11. In a Review，once mentioned of 499-40-1, Application of 499-40-1
An emerging class of neutral metal-organic supramolecules has led to some fascinating and sophisticated structures including their photophysics and host-guest properties that have attracted the imagination of chemists. Synthetic routes including step-wise and one-step strategies have been employed to achieve the targeting of neutral structures. Several discrete neutral assemblies of various nuclearities, in which the coordination geometries for transition metals include octahedral, tetrahedral, and square planar, integrating main-group elements in supramolecular self-assembly applications allows for the formation of markedly different structural motifs. The structural characteristics of the ligands as well as the metal centers present in the neutral metallacycles allow easy tuning of their emission properties. Therefore, by engineering the different parts in neutral metal-organic ensembles, emissions from blue to red have been achieved. The neutral metallacyclic structures are unique in their well-defined forms and would be expected to function as a macrocycle host with a large internal cavity shapes generated by the tailored ligands. Hence, the presence of both photophysical properties and the cavity sizes of these neutral metallacycles make them intriguing hosts for neutral guests and metal ions. This review provides an overview of the structural features and properties of neutral discrete metal-organic cyclic architectures ranging from binuclear to fascinating multinuclear assemblies that emerged during the period from 2005 to 2012.
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Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics