50982-12-2, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. Dichloro(cycloocta-1,5-diene)ruthenium(II), cas is 50982-12-2,the ruthenium-catalysts compound, it is a common compound, a new synthetic route is introduced below.
A mixture of [RuCl2(COD)]n (155 mg, 0.552 mmol) and la (147 mg, 0.552 mmol) was stirred in toluene (10 ml) at 115 C for 48 h in Kontes pressure tube. After cooling, a brick-colored precipitate was collected on a filter frit, washed with Et20 (3 x 10 ml) and vacuum dried on the filter. The material was extracted on the filter with 5 x 3 ml CH2C12 allowing the filtrates to be collected in 5 separate vials. A red solution in each vial was layered with Et20 (20 ml). In 1 week, the combined precipitates (or red crystals) from each vial were collected, washed with Et20 (3 x 10 ml) and vacuum-dried to afford 144 mg of the desired product (60%). Elem. Anal: Calcd for C28H44CI4N4O2RU2S2 (876.75): C, 38.36; H, 5.06; N, 6.39%. Found C, 38.38; H, 4.99; N, 6.32%. Elem. Anal: Calcd for C28H44CI4N4O2RU2S2 (876.75): C, 38.36; H, 5.06; N, 6.39%. Found (under nitrogen): C, 38.61; H, 4.99; N, 6.17%. The complex is poorly soluble in CDC13, slightly better in CD2C12. 1H NMR (400 MHz, CD2C12, r.t., saturated): delta 2.00 (brs, 1H), 2.15 (d, J~ 14 Hz, 1H), 2.37 (t, J~ 12 Hz, 1H), 2.15 (m, 4H), 2.75-2.94 (m, 3H), 3.04 (d, J~ 14 Hz, 1H), 3.07-3.23 (m, 5H), 3.38 (m, 2H), 3.44-3.62 (m, 3H), 3.61-3.75 (m, 3H), 3.79 (d, J~ 12 Hz, 1H), 3.87 (t, J~ 14 Hz, 1H), 3.93-4.09 (overlapped m, 3H), 4.06 (brs, 1H), 4.44 (t, J~ 11 Hz, 1H), 4.72 (brs, 1H, possibly NH), 5.07 (d, J~ 18 Hz, 1H), 6.72-8.85 (overlapped, 10H), 9.19 (brs, 1H, NH – C1). The same compound is obtained if the synthesis is carried out in the presence of P(C6F5)3. (0457) [0216] An X-ray structure of complex K-1 revealed that one ligand coordinates to one Ru atom via mer-fashion. A second ligand coordinates to second Ru atom via ^ac-fashion. Both Ru atoms are connected via one bridging CI atom. One S(Ph) atom is part of mer-coordinated la. There appears to be a hydrogen-bonding interaction between one NH group of the fac- coordinated ligand and terminal CI atom attached to the first Ru atom. Complex K-1 exists as a single species in solution. The NH hydrogen atom H-bonded to the chloride ligand appears at delta 9.19 ppm in the 1H NMR spectrum. It is shifted to low field by Deltadelta = 4.47 ppm relative to the NH resonance of the non-H bonded NH group.
Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of Dichloro(cycloocta-1,5-diene)ruthenium(II), 50982-12-2
Reference£º
Patent; LOS ALAMOS NATIONAL SECURITY, LLC; DUB, Pavel, A.; GORDON, John, Cameron; WO2015/191505; (2015); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI