Microwave Assisted Stereoselective Synthesis of Cis-Substituted TinIV Phthalocyanine Dicarboxylates. Application as Corrosion Inhibitors

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• 作者：Hiram I. Beltrá ; n ; Raquel Esquivel ; Arturo Sosa-Sá ; nchez ; Jose L. Sosa-Sá ; nchez ; Herbert Hö ; pfl ; Victor Barba ; Norberto Farfá ; n ; Monica Galicia Garc&iacute ; a ; Octavio Oliva
• 刊名：Inorganic Chemistry
• 出版年：2004
• 出版时间：June 14, 2004
• 年：2004
• 卷：43
• 期：12
• 页码：3555 - 3557
• 全文大小：72K
• 年卷期：v.43,no.12(June 14, 2004)
• ISSN：1520-510X

文摘

Two PcSn^IV dicarboxylate molecules were obtained through efficientmicrowave methodology with the aim to test them as corrosioninhibitors in the oil industry. The compounds were characterizedby elemental analysis, IR, UV-vis, ¹H, ¹³C NMR, and X-raydiffraction. The relative configuration of the two carboxylates iscis, placing the fatty acid moieties on the same face of thephthalocyanine macrocycle. In the solid-state the tin atoms possesssquare antiprismatic octacoordinated geometries. Both tin phthalocyanines were tested as corrosion inhibitors for hydrogen sulfidecorrosive media showing a chemisorption process of the nanocapmotifs on the metallic surface. Apparently, the length of thehydrophobic chain contributes significantly to the inhibition efficiency, in the sense that shorter chains increase the efficiency.