Hybrid inorganic-organic solids

STUDY OF THE CHIRAL TRANSFERENCE AND RECOGNITION EFFECT IN LAYERED ALUMINOPHOSPHATES TEMPLATED BY CHIRAL COBALT 

JIHONG YU, YU WANG AND RUREN XU State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130023, P. R. China E-mail rrxu mail.jlu.edu.cn 

Our calculation is based on the Burchartl.01-Dreiding2.21 force field that combines the Burchart force field [8], which is used to treat the frameworks of zeolites, and Dreiding II 

The experimental structures of the aluminophosphates are built up according to their crystal data using Cerius package. For the substituted hypothetical structures, we change the Co complexes to their enantiomorph (A-+A or A— A) with the positions of the Co atoms unchanged. 

2 d-Co(en)3-Al3P40 j 3H20 C222, 4.6-net, ABAB-stacking A-Co(en)3 A-[3.3.3] propellane-like motif 4 

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With respect to metal ions that sulfonate groups coordinate well to, as a soft base, the best partners are metal ions with polarizable coordination spheres. We have found very good success with Ag" " and heavier alkaline earth ions, in particular, Ba. The ensuing sections discuss metal sulfonates initially as more classical hybrid inorganic-organic solids with layered structures and then proceed to pillared layered motifs and finally nonlayered structures. Scheme 1 shows the ligands discussed in this chapter. 

Polynuclear clusters fill the gap between mononuclear and extended solid transition metal vibronic systems. The applications of the theory of vibronic interaction allow to describe physical and chemical properties of these systems, sometimes directly linked to their application. The Jahn-Teller distortion found for the rhenium clusters defines the architecture of hybrid inorganic-organic materials and, as a result, their electric and magnetic properties. The application of the vibronic theory to the decatungstate cluster elucidates the details of its reactivity in the photocatalytic reaction. The modern DFT methods give a key to the calculations of key parameters of the vibronic theory. In future, we will assist at the combination of these methods with phenomenological approaches leading to the description of vibronic effects in physical and chemical properties of polynuclear clusters from first principles. 

Carapiica, H.M., Balula, M.S., Fonseca, and A.P., Cavaleiro, A.M.V. 2006. Electrochemical characterization of glassy carbon electrodes modified with hybrid inorganic-organic single layer of a-kegging type polyoxotung states. Journal of Solid State Electrochemistry 10, 10-17. 

Furthermore, exploitation of fundamental coordination chemistry for solid state synthesis affords a variety of metal ions with preferred coordination geometries and numerous ligand architectures for the construction of metal-organic composite materials. Such hybrid inorganic-organic materials exhibit useful physical properties with applications to optics," magnetism," transport," thermochromism," and conductance. ... 

LebeauB., HerletN., Livage J., Sanchez C. Optical properties of a near-infrared dyes lasa-incorporated inside sol-gel matrices. Chem. Phys. Lett. 1993 206(1-4) 15-20 Lebeau B., Sanches C. Sol-gel derived hybrid inorganic-organic nanocomposites for optics. Curr. Opin. Solid State Mater. Sci. 1999 4 11-23... 

Lebeau, B. and Sanchez, C. (1999) Sol-gel derived hybrid inorganic-organic nanocomposites for optics. Curr. Opin. Solid State Mater, Sci., 4, 11-23. 

Millange F, Serre C, Ferey G. Synthesis, structure determination and properties of MIL-53as and MIL-53ht the first Cr hybrid inorganic-organic microporous solids Cr (0H)- 02C-C5H -C02 - H02C-CgH -COjH. Chem Commun 2002 822-3. 

Yiu, H.H.P. and Wright P.A. (2005) Enzymes supported on ordered mesoporous solids a special case of an inorganic-organic hybrid. Journal of Materials Chemistry, 15, 3690-3700. 

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