Alternative-liganden XIII. Koordinatives verhalten der chelatliganden Me2XGeMe2(CH2)2X′Me2 (Me CH3; X, X′ N, P, As)☆

Abstract In order to gain information about the coordinating properties of the chelating ligands Me 2 XGeMe 2 (CH 2 ) 2 X′Me 2 (abbr. XGeCCX′) the chemical and spectroscopic results obtained during the synthesis of the M(CO) 4 (XGeCCX′) complexes (M  Cr, Mo, W; X, X′  N, P, As) are critically discussed and compared with the results for the analogous five-membered ring chelates M(CO) 4 (KGeCX′).