1. A New Binucleating Ligand Based on Anthracene and Its Cofacial Dirhodium(I) and Diiridium(I) Complexes
2. Reduction during π-(cyclopentadienyliron) complexation of 1,8-dichloroanthracene
3. Based on the procedure described by Sutherland et al. ((a) R.G. Sutherland, A.S. Abd-El-Aziz, A. Piórko, C.C. Lee, Synth. Commun. 17 (1987) 393. (b) C.C. Lee, A.S. Abd-El-Aziz, R.L. Chowdhury, A. Piórko, R.G. Sutherland, Synth. React. Inorg. Met. Org. Chem. 16 (1986) 541), a series of reactions were carried out by mixing [(η6-AH2Cl2)FeCp](PF6) or [(η6:η6-AH2Cl2)(FeCp)2](PF6)2 (see Ref. [2]) and the β-diketone or diester under Ar in the presence of a base (KF supported on Celite, or K2CO3), in different solvents (DMF, THF and CH3CN) at room temperature and at −20°C. However, in all cases the reaction mixture decomposed, turning blue immediately after the iron complex was added.
4. π-cyclohexadienyliron complexes bearing exocyclic double bonds