139375-89-6Relevant academic research and scientific papers
Half-open ruthenocenes derived from [Ru(C5Me5)Cl]4: Syntheses, characterizations, and solid-state structures
Trakarnpruk, Wimonrat,Arif, Atta M.,Ernst, Richard D.
, p. 1686 - 1692 (1992)
A variety of half-open ruthenocenes of the general formula Ru(C5Me5)(Pdl) have been prepared from [Ru(C5Me5)Cl]4. For C5H7 or alkylated or arylated pentadienyl groups (1-, 2-, or 3-C6H9; 2,3-C7H11; 2,4-C7H11; 1,5-(C6H5)2C5H5), their introductions were brought about by using their potassium salts. For the oxo dienyl analogues 2,4-OC6H9 or 3,5-OC6H9, the respective enone or enal could be utilized, which underwent deprotonation upon coordination in the presence of K2CO3. With HPdl = 2,4-(CF3)2C5H6, coordination is accompanied by the spontaneous elimination of HCl, yielding Ru(C5Me5)[2,4-(CF3)2C 5H5]. A similar reaction led to Ru(C5Me4Et)[2,4-(CF3)2C 5H5]. In addition to various spectroscopic studies, structural studies were carried out on the Pdl = 3-C6H9 and 3,5-OC6H9 complexes, as well as for Ru(C5Me4Et)[2,4(CF3)2C 5H5]. For the Pdl = 3-C6H9 complex, the space group is P21/m with a = 7.598 (1) ?, b = 13.246 (2) ?, c = 7.526 (1) ?, β = 96.429 (4)°, and V = 752.7 ?3 for Z = Z. For the oxo dienyl compound, the space group is P212121, with a = 10.651 (2) ?, b = 11.925 (1) ?, c = 11.987 (2) ?, and V = 1522.4 ?3 for Z = 4. For the 2,4-(CF3)2C5H5 compound, the space group is CmC21 with a = 15.324 (3) ?, b = 8.785 (2) ?, c = 13.726 (2) ?, and V = 1847.8 ?3 for Z = 4. The structures were refined to respective R (and Rw) values of 0.026 (0.030), 0.034 (0.035), and 0.028 (0.031).
