MOFS ARE HIGHLY ORDERED CRYSTALLINE COORDINATION POLYMERS WITH WELL-DEFINED POROUS NETWORKS. AS A RESULT OF THEIR POTENTIAL APPLICATIONS ASSOCIATED WITH THE PRESENCE OF PORES AND CAVITIES, SUCH MATERIALS HAVE BEEN EXAMINED FOR STORAGE, SEPARATIONS, SENSORS, SIZE AND SHAPE-SELECTIVE CATALYSIS, MOLECULAR RECOGNITION AND NANOSCALE REACTORS. MetalLOPORPHYRINS ARE VERY STABLE P-CONJUGATED MACROCYCLIC MOLECULES FORMING A DIVERSE CLASS OF MULTIFUNCTIONAL MATERIALS, WHICH EXHIBIT INTERESTING AND USEFUL CATALYTIC, OPTICAL, ELECTRONIC AND BIOLOGICAL PROPERTIES. MetalLOPORPHYRIN MOLECULES ARE EXCELLENT CANDIDATES TO ACT AS COMPONENTS OF MOLECULAR BUILDING BLOCKS FOR THE CONSTRUCTION OF MOFS BECAUSE OF THE HUGE VARIETY OF AVAILABLE DERIVATIVES INCORPORATING DIFFERENT CENTRE-COORDINATED MetalS AND VARIOUS FUNCTIONAL GROUP SUBSTITUENTS IN THE PERIPHERY OF THE MOLECULE, THEREBY ALLOWING FINE CONTROL OF THE LINKAGE MOTIF [1,2].THE PROCEDURE INVOLVED SPREADING A SOLUTION OF THE MOLECULAR BUILDING UNITS COMPRISING 5,10,15,20-TETRAKIS(4-CARBOXYPHENYL) PORPHYRIN (0.1 G, 0.03MMOL) IN DMF (9.5 ML) AND CU(NO3)2.3H2O (0.0305 G, 0.03 MMOL) IN ETOH (3.2 ML), THEN THE TWO SOLUTIONS WERE ADDED TOGETHER. THE PRODUCT WAS OBTAINED UNDER HYDROTHERMAL CONDITIONSFOR 24 H. THE PRODUCT WAS FILTERED AND WASHED WITH DMF.

CYANOSILYLATION OF CARBONYL COMPOUNDS IS AN EFFICIENT PROCEDURE FOR THE SYNTHESIS OF SILYLATED CYANOHYDRINS, WHICH ARE READILY CONVERTED TO SEVERAL SIGNIFICANT BUILDING BLOCKS SUCH AS A-HYDROXY ACIDS, A-HYDROXY ALDEHYDES, 1, 2 DIOLS, A-AMINO ALCOHOLS ETC. SEVERAL REAGENTS INCLUDING LEWIS ACIDS, LEWIS BASES, Metal ALKOXIDES, BIFUNCTIONAL CATALYSTS, IODINE AND INorganic SALTS HAVE BEEN FOUND TO EFFECTIVELY TRANSFER THE CYANO GROUP FROM TMSCN TO CARBONYL COMPOUNDS [1, 2]. Metal-organic frameworkS (MOFS) ARE BEING RECOGNIZED AS VERY PROMISING MULTIFUNCTIONAL MATERIALS WITH THEIR HIGHLY POROUS STRUCTURES AND UNIQUE PROPERTIES. THERE IS ESPECIALLY A GROWING INTEREST IN THE USE OF MOFS AS CATALYSTS [3, 4]. RECENTLY MORE ATTENTION HAS BEEN DEDICATED OVER MAGNETIC PROPERTIES THAT HELP RAPID AND EASY SEPARATION OF THE CATALYST USING AN EXTERNAL MAGNETIC FIELD [5]. HERE WE REPORT INVESTIGATION OF MAGNETIC Metal organic framework CATALYTIC ACTIVITY IN THE CYANOSILYLATION OF ALDEHYDES.

IN THE PAST DECADE, THE DESIGN AND SYNTHESIS OF FUNCTIONAL MOLECULE ANALOGUES BY THE SELFASSEMBLY OF Metal-CONNECTING POINTS AND organic LINKERS UNDER CONTROLLED REACTION CONDITIONS HAS ATTRACTED A GREAT DEAL OF ATTENTION AMONG THE INorganic, MATERIALS, AND SUPRAMOLECULAR CHEMISTRY COMMUNITIES. AS A RESULT OF THESE EFFORTS, THE STUDIES ON THE SYNTHESES OF Metal-organic frameworkS (MOFS) HAVE UNDERGONE TREMENDOUS DEVELOPMENT .IN THIS STUDY WE INVESTIGATE THE TOPOLOGY OF THE ZN(ADC)2.(HTEA)2,(ADC=ACETYLENEDICARBOXYLICACID , HTEA= TRIETHYLAMINE) STRUCTURE. A BETTER INSIGHT INTO THE NATURE OF THIS ARCHITECTURE CAN BE ACHIEVED BY TOPOLOGICAL ANALYSIS. THE STRUCTURE HAS BEEN CHARACTERIZED BY POWDER X-RAY DIFFRACTION.TETRAHEDRAL SBU IN THIS ZN(ADC)2.(HTEA)2 COMPLEX IS LINKED INTO DIAMOND NETWORKS. FROM TOPOLOGICAL POINT OF VIEW, ONE CAN CONSIDER ZN(CO2)4 UNIT AS TETRAHEDRAL INorganic SBU LIKED THROUGH ACETYLENE SPACER TO FORM TWO-FOLD INTERPENETRATEDDIAframework (FIG.1). EACH SINGLE NET FORM PORES WITH SBU…SBU SEPARATION OF 13.3´17.9 Å2 (FIG.2). ALTHOUGH THE FACT THAT SBU HAVE THE FLEXIBILITY TO BE OF ANY CONE TIVITY, SIZE AND STEREOCHEMISTRY PROMISES THE DESIGN AND SYNTHESIS OF WIDE DIVERSITY OF FUNCTIONAL MOFS.

organic–INorganic HYBRID MATERIALS, WHICH CONTAIN Metal CENTERS CONNECTED BY organic SPACERS, HAVE ATTRACTED MUCH ATTENTION IN RECENT YEARS. IN PARTICULAR, COORDINATION POLYMERS (CPS) OR Metal–organic frameworkS (MOFS) ARE OF CONSIDERABLE INTEREST OWING TO THEIR POTENTIAL APPLICATIONS INCLUDING GAS STORAGE, CATALYSIS, LUMINESCENCE, MAGNETISM AND ELECTROCHEMICAL ACTIVITY...

Metal-organic frameworkS (MOFS), WHICH ARE A SUBFAMILY OF POROUS COORDINATION POLYMERS (PCPS), CONSIST OF INorganic CLUSTERS CONNECTED VIA organic LINKERS TO FORM THREE-DIMENSIONAL POROUS CRYSTALLINE STRUCTURES [1, 2]. ONE OF THE MOST IMPORTANT PROPERTIES OF THESE CRYSTALLINE PARTICLES IS TUNEABILITY OF THEIR CAVITIES AND THE PORES CAN BE PERMITTED OPTIMIZATION OF SPECIFIC CATALYTIC APPLICATIONS [3]. RECENTLY, MORE ATTENTION HAS BEEN DEDICATED TO THE DEVELOPMENT OF MAGNETIC PARTICLES AND THEIR IMPROVEMENT IN DIFFERENT AREAS. MAGNETIC PROPERTIES HELP RAPID AND EASY SEPARATION OF THE CATALYST USING AN EXTERNAL MAGNETIC FIELD [4, 5].HEREIN WE REPORT THE SYNTHESIS AND CHARACTERIZATION OF NEW MAGNETIC Metal organic framework AND USING IT FOR DIRECT OXIDATION OF ALKENES TO CORRESPONDING CARBOXYLIC ACIDS IN THE PRESENCE H2O2 (SCHEME1).

WE USED A COMBINATION OF QUANTUM CHEMISTRY CALCULATIONS AND GRAND CANONICAL MONTE CARLO (GCMC) SIMULATIONS TO SHED LIGHT ONTO HYDROGEN ADSORPTION IN CATION-DOPED MOF. THE RESULTS REVEALED THAT THE PRESENCE OF ALKALI Metal CATIONS CAN STRONGLY ENHANCE THE ADSORPTION PROPERTIES OF MOFS FOR HYDROGEN MOLECULES. ...

Metal-organic frameworkS (MOFS) ARE COMPOUNDS CONSISTING OF Metal IONS OR CLUSTERS COORDINATED TO OFTEN RIGID organic MOLECULES TO FORM ONE, TWO-, OR THREE-DIMENSIONAL STRUCTURES THAT CAN BE POROUS. IN SOME CASES, THE PORES ARE STABLE DURING ELIMINATION OF THE GUEST MOLECULES (OFTEN SOLVENTS) AND COULD BE USED FOR THE STORAGE OF GASES SUCH AS HYDROGEN AND CARBON DIOXIDE. …