Syntheses and caracterization of bifunctional germylenes Several synthetic methods of bifunctional germylenes GeY 2 (Y = RO, PhO, RS, CH 3 COO, Acac; Y 2 = OCH 2 CH 2 O, SCH 2 CH 2 S) or GeXY (Y = RO, X = Cl; Y = RS, X = Cl; Y = Acac, X = Cl) such as exchange ...