02132nas a2200253   4500008004100000022001400041245017900055210006900234260007300303300001400376490000800390520117100398653000801569653001301577653001501590653001801605653002201623653000801645100002101653700002701674700002401701700002501725856012801750       2007                        eng d  a0927-775700aInvestigating organization of molecules that facilitates intermolecular acyl transfer in crystals: reactivity and x-ray structures of O-benzoyl-myo-inositol 1,3,5-orthoesters0 aInvestigating organization of molecules that facilitates intermo  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcFEB  a1153-11590 v2933 a<p>{Crystal structure analysis of racemic 2,6-di-O-benzoyl-myo-inositol 1,3,5-orthobenzoate reveals helical organization of the molecules, remarkably similar to that observed earlier in crystals of racemic 2,6-di-O-benzoyl-myo-inositol 1,3,5-orthoformate. Both these dibenzoates are isostructural despite the bulkier phenyl substituent in place of hydrogen. The latter compound shows highly facile intermolecular benzoyl transfer reactivity in its crystals and as anticipated from the crystal structure, the orthobenzoate indeed exhibits facile benzoyl transfer reactivity in its crystals. 2-O-Benzoyl-myo-inositol 1,3,5-orthoformate and the corresponding orthobenzoate also undergo transesterification in their crystals, but the specificity of acyl transfer is very low, and the reaction yields a mixture of products. The parameters of helical molecular assembly that facilitates acyl transfer in crystals have been investigated. A comparison of the molecular assemblies and lattice interactions in crystals of all the four compounds with the observed reactivity patterns show that facile acyl transfer reaction is brought about by a modular ``reaction tunnel''</p>10aAOT10aCdS-Ag2S10acore-shell10aNanoparticles10aw/o microemulsion10aXPS1 aMurali, Chebrolu1 aShashidhar, Mysore, S.1 aGonnade, Rajesh, G.1 aBhadbhade, Mohan, M.  uhttps://library.ncl.res.in/content/investigating-organization-molecules-facilitates-intermolecular-acyl-transfer-crystals-002244nas a2200265   4500008004100000022001400041245013100055210006900186260005700255300001200312490000600324520126300330653002701593653001201620653001801632653002501650653002201675100002901697700002401726700002801750700002201778700002001800700002601820856013201846       2008                        eng d  a1931-757300aSulfur nanoparticles synthesis and characterization from H2S gas, using novel biodegradable iron chelates in w/o microemulsion0 aSulfur nanoparticles synthesis and characterization from H2S gas  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcJUN  a221-2290 v33 a<p>Sulfur nanoparticles were synthesized from hazardous H2S gas using novel biodegradable iron chelates in w/o microemulsion system. Fe3+-malic acid chelate (0.05 M aqueous solution) was studied in w/o microemulsion containing cyclohexane, Triton X-100 and n-hexanol as oil phase, surfactant, co-surfactant, respectively, for catalytic oxidation of H2S gas at ambient conditions of temperature, pressure, and neutral pH. The structural features of sulfur nanoparticles have been characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), energy dispersive spectroscopy (EDS), diffused reflectance infra-red Fourier transform technique, and BET surface area measurements. XRD analysis indicates the presence of alpha-sulfur. TEM analysis shows that the morphology of sulfur nanoparticles synthesized in w/o microemulsion system is nearly uniform in size (average particle size 10 nm) and narrow particle size distribution (in range of 5-15 nm) as compared to that in aqueous surfactant systems. The EDS analysis indicated high purity of sulfur (&gt; 99%). Moreover, sulfur nanoparticles synthesized in w/o microemulsion system exhibit higher antimicrobial activity (against bacteria, yeast, and fungi) than that of colloidal sulfur.</p>10aAntimicrobial activity10aH2S gas10airon chelates10asulfur nanoparticles10aw/o microemulsion1 aDeshpande, Aniruddha, S.1 aKhomane, Ramdas, B.1 aVaidya, Bhalchandra, K.1 aJoshi, Renuka, M.1 aHarle, Arti, S.1 aKulkarni, Bhaskar, D.  uhttps://library.ncl.res.in/content/sulfur-nanoparticles-synthesis-and-characterization-h2s-gas-using-novel-biodegradable-iron-0