- Rhenium Tris(pyrazolyl)Borate Oxothiolate Complexes: Syntheses and Structures
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Abstract: The rhenium complexes TpReOCl(StBu) (I), TpReO(StBu)2 (II), and TpReO(SnC3H7)2 (III) are synthesized using two methods by analogy to the known thiophenyl complexes. Complexes I–III having more electron-donating alkylthiolate ligands are characterized by IR and NMR spectroscopy. The structures of complexes I–III are determined by X-ray diffraction analysis (СIF files CCDC nos. 1892096 (I), 1892097 (II), and 1892098 (III)). The temperature dependence of the spectra of the bis(thiolate) complexes allows one to determine the activation energy for the hindered rotation about the Re–thiolate ligand bond. The by-product of the reaction of TpReOCl2 with NaS-tert-Bu, binuclear oxygen-bridged complex TpReIVCl(S-tert-Bu)O(S-tert-Bu)2ReIVTp, is isolated and structurally characterized (СIF file CCDC no. 1892099).
- Skabitskii,Sakharov,Pasynskii,Eshmakov
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- SELF-ASSEMBLED POLYHEDRAL MULTIMERIC CHEMICAL STRUCTURES
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Self-assembled, closed and hollow chemical multimer structures having a dodecahedral morphology, composed of chemical monomers having a structurally symmetric core which posses a 5-fold rotational symmetry, are provided. Also provided are methods of creating such chemical monomers, methods of creating such chemical multimer structures and compositions comprising these chemical multimer structures. Also provided are uses of these chemical multimer structures in applications such as drug delivery, imaging, immunization, formation of plastic crystals and nanopaticle matrices and other medical and material science applications.
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Page/Page column 62-63
(2008/12/07)
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- SYNTHESIS OF MONO(ALKYLTHIO)-SUBSTITUTED KETONES
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In the reaction of 2-propanone in the presence of sodium bicarbonate with a mixture of formaldehyde and the corresponding alkaline hydrolyzates of S-alkylthiuronium salts (thioalcoholates) β-keto sulfides (1-alkylthio-3-butanones) were obtained.Ketalization of the products with glycerol gave the cyclic derivatives alkylthio-1,3-dioxolanes.
- Sabirov, S. S.,Gnevasheva, L. M.,Ismailov, M. I.,Isobaev, M. D.
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p. 1239 - 1243
(2007/10/02)
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