Crystal structure and vibrational studies of butylenediammonium pentachlorobismuthate (III) hydrate [NH₃(CH₂)₄NH₃]BiCl₅*H₂O

The results of the X-ray diffraction study at ambient temperature on a new butylenediammonium pentachlorobismuthate (III) hydrate [NH3(CH2)4NH3]BiCl5*H2O single crystal are presented. The anionic sublattice of the crystal is built up of isolated Bi2Cl4-10 units composed of distorted octahedral BiCl3-6 connected with each other by an edge. In voids of anionic sublattice butylenediammonium cations are located. The water species are placed between the layers formed by organic cations along the c axis. Differential scanning calorimetry (DSC), coupled differential thermal and thermogravimetric (DTA-TGA) studies are reported and indicate that this compound shows, at high temperatures, a dehydration which is clearly shown by means of Raman spectroscopy at various temperatures. The infrared and Raman spectra have been recorded at ambient temperature and interpreted on the basis of literature data

Structure of Pentylenediammoniumhexachlorostannate(IV)

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Structures and phases transition in hexylenediammonium pentachlorobismuthate (III) [NH3(CH2)6NH3]BiCl5 crystal

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X-ray, thermal and vibrational studies of two structural phases transition in hexylenediammonium pentachlorobismuthate (III) [NH3(CH2)6NH3]BiCl5

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X-ray structures, solid state periodic DFT modeling and vibrational study of alkylenediammonium hexachlorostannates compounds NH3(CH2)nNH3SnCl6 (n = 3, 4, 5)

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Conductivité ionique et applications de fluorures de structure fluorine

International audienceIonic conductivity and applications of fluorite-structure fluorides..

Extraction and Recovery of Bioactive Metabolites from Marine Spongeand#8220;Ircinia spinulosaand#8221;

Oceans cover more than 75% of our planet. In some ecosystems, such as coral reefs, experts believe that biodiversity is greater than that of tropical forests. Morocco, with its double facade Atlantic and Mediterranean, long of more than 3500 km, is a country deeply influenced by the sea, which implies the existence of thousands of marine species by reports in other countries. Currently, marine organisms are a very important source of new molecules in pharmacology and thus in the development of new bioactive products. Sponges, in particular, given their very primitive origin and persistence during evolution, have developed a chemical defense system. This study aims the biological valorization of crude extract from a marine sponge collected in Atlantic coastal El Jadida: Ircinia spinulosa. The chemical study of Ircinia spinulosa, marine sponge was realized for the first time in Morocco, and revealed that this sponge contains different levels of primary and secondary metabolites. Analysis of fatty acids in the lipid extract of Ircinia spinulosa is performed by gas chromatography coupled with mass spectrometry (GC-MS) was used to determine the predominance of acid Palmitic. This molecular diversity of sponges has a large deposit of biological and biomedical potential. What pushed us to continue the research to isolate new and original molecules

Extraction and Recovery of Bioactive Metabolites from Marine Spongeand#8220;Ircinia spinulosaand#8221;

Oceans cover more than 75% of our planet. In some ecosystems, such as coral reefs, experts believe that biodiversity is greater than that of tropical forests. Morocco, with its double facade Atlantic and Mediterranean, long of more than 3500 km, is a country deeply influenced by the sea, which implies the existence of thousands of marine species by reports in other countries. Currently, marine organisms are a very important source of new molecules in pharmacology and thus in the development of new bioactive products. Sponges, in particular, given their very primitive origin and persistence during evolution, have developed a chemical defense system. This study aims the biological valorization of crude extract from a marine sponge collected in Atlantic coastal El Jadida: Ircinia spinulosa. The chemical study of Ircinia spinulosa, marine sponge was realized for the first time in Morocco, and revealed that this sponge contains different levels of primary and secondary metabolites. Analysis of fatty acids in the lipid extract of Ircinia spinulosa is performed by gas chromatography coupled with mass spectrometry (GC-MS) was used to determine the predominance of acid Palmitic. This molecular diversity of sponges has a large deposit of biological and biomedical potential. What pushed us to continue the research to isolate new and original molecules