Synthesis And Property Of 1'-Long Chain Alkylferrocenyl β-Diketones And Their Transition Metal Chelate Complex

Having some common character of organometallic chelate complex and liquid crystal, organometallic liquid crystal has become an important part of organic and inorganic chemistry. In particular, ferrocene-containing β-diketone transition metal complexes showed remarkable thermal stability and mesomorphic character. 1 '-long chain alkylferrocenyl-β-diketone was synthesized by esterification, the Friedel-Crafts, Clemmensen reduction ,hydrolysis, acylation reaction, based on ferrocenecarboxylic acid. And we have abtained four transition metal chelates by the reaction of l'-duodenary alkylferrocenyl-β-diketone with M(Ac)₂ ? nH₂O(M=Co, Ni, Cu, Zn) over catalyst NaH. The composition and the structure of all the new compounds have been characterized by elemental analyses, IR spectra, ¹HNMR spectra and DTA-TG spectra. The IR spectra shows the characteristic absorptions of the |3-diketone (vc=c 1620cm^-1, vc=o 1552 cm^-1) in the transition metal chelate complex has shifted towards 1570cm^-1 and 1515 cm^-1 respectively.