11112-17-7Relevant articles and documents
Synthese und Kristallstruktur der Grignardverbindungen C5H5MgCl*O(C2H5)2 und C5Me5MgCl*O(C2H5)2
Dohmeier, Carsten,Loos, Dagmar,Robl, Christian,Schnoeckel, Hansgeorg,Fenske, D.
, p. 5 - 8 (2007/10/02)
Single crystals of CpMgCl*O(C2H5)2 (I) (Cp=C5H5) and Cp*MgCl*O(C2H5)2 (II) (Cp*=C5Me5) have been prepared.In both compounds the formation of dimeric units is shown by X-ray structure determination.These symmetric dimeric species contain MgCl2Mg bridges with nearly identical Mg-Cl distances (=243 pm).The Cp and Cp* fragments are η5-coordinated to the metal atom.The average Mg-C distances (=239 pm (I); 241 pm (II)) are significantly longer than those in MgCp2 (230 pm) and MgCp2* (235 pm) respectively.The Mg-O distances range between 205 and 208 pm.