ISSN:
0044-2313
Keywords:
bimetallic Fe—Ni complexes
;
CO2 fixation
;
nickelalactones
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Organometallic Chemistry of Binuclear 1-Azadiene-Nickel(0) Complexes: Bimetallic Compounds with a Ni—Fe Bond by Addition of Pentacarbonyl-iron(0) and Nickelalactons by Ring Opening Reaction of Cyclic AnhydridesThe binuclear nickel(0) complexes 1-3, which contain as well bridging 1-azadienes ligands as five or six-membered (N∩N)-chelate rings react at -30°C with Fe(CO)5 to form the bimetallic compounds 4-6, containing a Ni—Fe bond and two carbonyl groups as bridging ligands. The coordination of the [(bpy)Ni(0)] fragment to the olefin part of the 1-azadiene chain in 6 leads to the formation of the trinuclear complex 7, which can storage CO2 at the peripheral position. Succinic acid anhydride or glutaric acid anhydrid undergo a ring opening reaction by reacting with 3 yield nickelalactones upon elimination of CO.
Notes:
Die binuclearen Nickel(0)-Komplexe 1-3, die verbrückende 1-Azadieneinheiten und N∩N-Chelatfünf- oder Sechsringe enthalten, reagieren bei -30°C mit Fe(CO)5 zu den Bimetallcarbonylverbindungen 4-6, die eine Ni—Fe-Bindung und 2 CO-Brückencarbonylliganden aufweisen. Koordination des (bipy)Ni(0)-Fragments an den Olefinteil der 1-Azadienkette 6 liefert den Dreikernkomplex 7, der an der Peripherie CO2 speichert. Bernsteinsäureanhydrid oder Glutarsäureanhydrid reagieren mit 3 unter Ringöffnung und CO-Eliminierung zu Nickelalactonen.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19956210422
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