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Unformatted text preview: the range of HLB 10.7 to 15.0 was prepared. Mixtures of surfactant/oil were prepared in universal glass bottle at weight. ratios of 19, 1:4, 3:7, 2:3, 1:1, 3:2, 7:3, 4:1 and 9:1. Water was added to the mixture of oil surfactants drop wise and in increment of 5 % using a micropipette. Visual observation, microscopic examination and calculations of the components percentage was recorded after each 5 % addition of water. The visu al observation and the percentage of the components were plotted on a pseudo three phase diagram. The results showed phase behavior rich in water in oil microemulsions (W/O ME) as well as transitional liquid crystalline systems (LC) with high swelling capacity. The transitional LC might have potential uses in topical ocular drug delivery. The resulting systems have liability to solubilize hydrophilic biomolecules which might have potential applications in pharmaceuticals and cosmeceuticals preparations. PHY-O2 DFT CALCULATIONS OF THE H CHEMICAL SHIFTS AND C CHEMICAL SHIFT, SYNTHESIS ON STERICALLY CONGESTED SOME NEW SCHIFF BASE LIGANDS WITH THIOSOMICARBAZIDE AND THEIR OXO VANADIUM COMPLEXES Hooriye yahyaei, Shahla masoudian and Alireza kazemizadeh Department of Chemistry, Islamic Azad University- Zanjan Branch, P.O. Box 49195-467, Zanjan, Iran E-mail: [email protected] This research work describes synthesis and characterization of a new series Schiff base ligands with 1 13 thiosomicarbazide. All the Schiff base were characterized by HNMR, CNMR, FT-IR and elemental 1 13 analysis. The H and C NMR chemical shifts of the (E)-1-(1-pyridin-2-yl)ethylidene thiosemicarbazide and 1-(3-oxo-1-(phenyl amino)butylidene) thiosemicarbazide were determined with the help of full spectral analysis. Also the oxo vanadium complexes compound synthesized and NMR spectroscopies 1 13 and characterized by H NMR, C NMR, FT-IR and elemental analysis. The geometry and electronic structure of the title compounds were investigated at both the ab initio Hartree-Fock and the B3LYP levels with 6-31G(d,p) and 6-31++G(d,p...
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This note was uploaded on 02/17/2011 for the course CHEMISTRY 101 taught by Professor Csr during the Spring '11 term at University of Louisville.
- Spring '11