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- W1494907398 abstract "Abstract Starting with Hein's investigation of the reaction of CrCl 3 with PhMgBr in the beginning of the twentieth century, chromium organometallic chemistry is now marked by an ever increasing diversity of compound types and formal oxidation states. Organochromium compounds such as Cr(CO) 6 , (η 6 ‐C 6 C 6 ) 2 Cr, and (OC) 5 CrC(OMe)Ph represent milestones in the development of organometallic chemistry as a whole. The lower oxidation states (−IV to +II) are dominated by chromium carbonyl complexes with 18 electron configurations, while midvalent compounds (+II, +III) often feature cyclopentadienyl rings and exhibit unpaired electrons. Organometallic compounds of chromium in its highest oxidation states (+IV to +VI) are still relatively rare, but this has been a growing area of late. Much of the interest in chromium alkyls is due to the metal's important role in the catalysis of olefin polymerization. Homogeneous model systems for the Union Carbide catalyst (Cp 2 Cr/SiO 2 ) and the Phillips catalyst (CrO 3 /SiO 2 ) still motivate much synthetic work. Applications of organochromium chemistry in organic synthesis are also becoming more numerous and useful." @default.
- W1494907398 created "2016-06-24" @default.
- W1494907398 creator A5073389792 @default.
- W1494907398 creator A5073613260 @default.
- W1494907398 date "2005-09-07" @default.
- W1494907398 modified "2023-10-17" @default.
- W1494907398 title "Chromium: Organometallic Chemistry" @default.
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