✦ LIBER ✦

ESR investigation of Mn carbonyl complexes formed by reaction of Mn2(CO)10 with electron acceptor molecules

✍ Scribed by Luigi Pasimeni; Pier Luigi Zanonato; Carlo Corvaja

Book ID: 104138207
Publisher: Elsevier Science
Year: 1979
Tongue: English
Weight: 399 KB
Volume: 37
Category: Article
ISSN: 0020-1693
DOI: 10.1016/s0020-1693(00)95551-8

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✦ Synopsis

The reaction of MnZ(CO)I,, with quinones like acenaph thenquinone (ACNQ), 9,l @phenanthrenquinone (PQ) and tetrachloro-orthobenzoquinone (o-TCBQ) yields paramagnetic adducts which have been investigated by ESR spectroscopy. While the adducts with ACNQ and PQ are obtained in a thermal reaction, the complex having o-TCBQ as a ligand requires a photoassisted reaction to be formed. In the photolysis of o-TCBQ in benzene three different adducts are formed with one, two and three o-TCBQ chelated to the manganese atom. Spin adducts are also formed when Mn2(CO)I,, reacts thermally with tetracyanoquinodimethane (TCNQ) and with 2,3dichloro-.5,6dicyano-p-benzoquinone

(DDQ) where a coordination of the metal group to a nitrogen atom is preferred.

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