Preparation and Properties of Tetrathia[n](1,1′)ferrocenophanes with Pd(BF4)2. The Metal–Metal Interaction Controlled by the Size of the Thiamacrocycles

• Published in: Bulletin of the Chemical Society of Japan Vol. 62; no. 11; pp. 3492 - 3497
• Main Authors: Sato, Masaru, Akabori, Sadatoshi
• Format: Journal Article
• Language: English
• Published: Tokyo The Chemical Society of Japan 01.11.1989; Chemical Society of Japan
• Subjects: Chemistry; Coordination compounds; Exact sciences and technology; Inorganic chemistry and origins of life; Preparations and properties; Cyclophane; Palladium Complexes; Metallocene; Macrocycle
• ISSN: 0009-2673; 1348-0634
• DOI: 10.1246/bcsj.62.3492

1,4,7,10-Tetrathia[10]-, 1,4,8,11-tetrathia[11]-, 1,5,8,12-tetrathia[12]-, and 1,5,9,13-tetrathia[13](1,1′)ferrocenophanes reacted with (CH3CN)4Pd(BF4)2 to give the corresponding 1/1 complexes in good yield. The 1H NMR spectra of the Pd(II) complexes were not rigid at room temperature, except for the complex of 1,4,7,10-tetrathia[10](1,1′)ferrocenophane. The 1H and 13C NMR spectra at low temperature showed that the Pd(II) complex of 1,5,9,13-tetrathia[13]ferrocenophane was a single compound, while the other three complexes were a mixture of two isomers. In the electronic spectra of the above series, the low-energy band shifted to the long-wavelength region and increased its absorbance according to the decrease in the size of the thiamacrocycle.