be carefully monitored. When selecting an interior material for a storage room or studying methods of preventing deterioration, it is very important to consider fully the characteristics of wood VOCs, not only the amount of TVOC.

[π-(Dimethylaminomethyl)cyclopentadienyl]tetraphenylcyclobutadienecobalt(I) reacts with lithium tetrachloropalladate(II) in the presence of sodium acetate to give an ortho-palladated binuclear complex. The σ-bonded structure of the complex was confirmed by studies of the IR and 1H-NMR spectra and of the reactions with triphenylphosphine, thallium(I) acetylacetonate, and lithium aluminum deuteride. The reactions of the σ-bonded complex with carbon monoxide and olefins have been examined.

No abstract

Several ferrocenophanes, in which the two cyclopentadienyl rings are linked by acetylenic and olefinic bonds and aromatic rings, have been synthesized via the titanium-induced reductive coupling of the corresponding formyl compounds. The structures of these ferrocenophane compounds were determined by means of their IR and NMR spectra. The transannular π-electronic interactions between the two chromophores were examined on the basis of the electronic spectra.

Several naphthalenoferrocenophanes, in which the two cyclopentadienyl rings are linked by two naphthalene rings, were synthesized via intramolecular reductive coupling of the corresponding formyl compounds with a low valent titanium reagent. Their structures are deduced from IR, NMR, and UV spectra. Transannular π-electronic interaction between the two naphthalene rings is discussed on the basis of electronic spectra.