Photo-induced ligand exchange reactions of ferrocenylacetylacetone in the presence of pyridine or 4,4′-dipyridyl: Crystal and molecular structure of trans-bis(ferrocenylacetylacetonato)dipyridineiron(II), [Fe(FAnato)2(Py)2]

Tetrametallic macrocyclic frameworks constructed from ferrocenedicarboxylato and 2,2′-bipyridine: synthesis, molecular structures and characteristics

“…It has been reported that electron-withdrawing substituent on the cyclopentadienyl ring for ferrocene derivatives may provide a greater photolability, and can undergo photolysis in some solvents to cause both ringmetal and ring-carbonyl cleavages, giving Fe 2þ cation and some free radicals [34][35][36][37][38]. If the mixture of metal ions, 2,2 0 -bpy, 1,1 0 -ferrocenedicarboxylic acid and NaOH in methanol-water solution are under light, it could turn from orange to dark-brown solution and then produce brown precipitate, whose composition cannot be identified, compounds (1)-(4) could not be obtained.…”

Synthesis and structures of three heterobimetallic compounds based on a new ferrocenyl pyridine ligand

“…All calculations were done with SHELX-97 [19]. Further details are given in Ferrocene derivatives bearing electron-withdrawing groups undergo photolysis in some solvents to cause cleavage of both ring-metal and ring-carbonyl, giving free Fe 2þ cation and free radicals [20][21][22][23]. Thus, all procedures should be performed in the dark.…”