REACTIVITY OF COMPLEXES [LNM=E=MLN] (E=GE , SN, PB - LN=CP (CO)2MN) WITH CHELATE LIGANDS 1,10-PHENANTHROLINE, TETRAMETHYLETHYLENEDIAMINE AND 1,8-OXOQUINOLATE

The compounds [CP(CO)2Mn=E=Mn(CO)2Cp'] (E = Ge (1a), Sn (1b), Pb (1c)) reacts with 1,10-Phenanthroline (Phen) to yield the chelate derivativ es [{Cp'(CO)2Mn}2E(Phen)] (E = Ge (3a), Sn (3b), Pb (3c)). The structu res of the complexes 3a, 3b and 3c are. similar to the structures repo rted for [{Cp'(CO)2Mn}2E(Bipy)] (E = Ge (6a), Sn (6b), Pb (6c)). The r eaction of 1c with Tetramethylethylendiamin (TMEDA) gives the complex [(CP'(CO)2Mn}2Pb(TMEDA)] (4). lb reacts with 1,8-Oxo-Chinolate (O-Chin ) to give the anionic chelate derivatives [{CP'(CO)2Mn}2Sn(O-Chin)]- ( A5). The new compounds are derivatives of Ge, Sn or Pb respectively in their formal oxidation states zero. X-ray diffraction studies of the Na(12-K-4)2 salt 5 of the complex anion A5 and of 3a, 3b and 3c are de scribed.