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Perfluormethyl-element-liganden : VIII. Kakodylderivative des mangancarbonyls by J. Grobe; F. Kober is a Chemistry article available to read on EtoBox.

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The reactions of Mn,(CO),O with (CH,),AsX compounds are determined by 'the ligand properties of the groups X and the polarity of the As-X bond. For X=1 the complex Mn,(CO),As(CH,),I is obtained, for X=Cl or Br redox processes take place, in course of which polymer carbonyl derivatives of unknown structure are formed. In the reaction of Mn,(CO),o with (CH,),E'-E(CF,), (E and E' alternatively P and As) the good figand properties of E and 33' lead to the formation of the complexes Mn,(CO),E(CF,),E'(CH,), besides Mn,(CO),[E(CF,),J,. The (CH&E component is found in a polymer residue. A series of new complexes which are not accessible by direct reaction between Mn,(CO),O and the respective cacodyl compound is obtained on substitution of iodine in Mn2(CO),As(CH,),I by SCF,, SCH, Cl, P(CH&, H. IR, Nn&R, and mass spectra of the new complexes are reported. The IR spectra confirm the high back-bonding capability of the (CF,),E ligands irrespective of the nature of the bridging atoms E. The mass spectra demonstrate the high stability of the Mn,XY four membered ring system. In complexes containing a ligand with fluorine migration of fluorine from the ligand to the metal is observed\_ ZUSAMMENFA

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Author

J. Grobe; F. Kober

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-328X)

Published

1971

Language

DE

Field

Chemistry (Physical Sciences)