排序方式: 共有53条查询结果,搜索用时 0 毫秒
51.
Lazhar Hajii Cristobal Saraiba Bello Franco Scalambra Gaspar Segovia-Torrente A. Canella 《Journal of Coordination Chemistry》2017,70(10):1632-1644
Thiopurines bis(S-8-thiotheophylline)methane (MBTTH2), 1,2-bis(S-8-thiotheophylline)ethane (EBTTH2), and 1,3-bis(S-8-thiotheophylline)propane (PBTTH2) were reacted with [RuClCp(mPTA)2](CF3SO3)2 in water to afford the bis-ruthenium complexes [{RuCp(mPTA)2}2-μ-(L-κN7,N′7)](CF3SO3)4 (1: L = MBTT; 2: L = EBTT; 3: L = PBTT), which have been characterized by elemental analysis, IR, and multinuclear NMR (1H, 13C{1H}, 31P{1H} and 19F{1H}) spectroscopy). Diffusion experiments for 1 were carried out. Proposed structures for the three complexes were also supported by theoretical calculations. Cyclic voltammetry showed that these complexes are characterized by two one-electron irreversible oxidative response (RuII – RuII/RuIII – RuII; RuIII – RuII/RuIII – RuIII). Complexes showed poor antiproliferative activity against cisplatin-sensitive T2 human cell line and the cisplatin-resistant SKOV3 cell line. 相似文献
52.
Christopher E. Rivas Jose C. Alvarado-Monzon Dr. Gerardo Gonzalez-Garcia Dr. J. Oscar C. Jimenez-Halla Jesus Rangel-Garcia Dr. Crispin Cristobal Dr. Jorge A. Lopez 《Chemistry (Weinheim an der Bergstrasse, Germany)》2021,27(33):8468-8472
Iridabicycles [Ir{κ3-N,C,O-(pyC(H)=C(C(O)Me)2}(Cl)(L−L)](L−L=cod (cod=1,5-cyclooctadiene), 1 a ; bipy (bipy=2,2’-bipyridine), 1 b ) have been obtained by oxidative coordination of 3-(pyridine-2-yl-methylene)pentane-2,4-dione L1 , to the complexes [{Ir(μ-Cl)(cod)}2] and [{Ir(μ-Cl)(coe)2}2] (coe=cis-cyclooctene), the latter in the presence of bipy. Remarkably, cleavage of the C3−C(O)Me bond of L1 has instead been achieved in the reaction with [Ir(Cl)(dmb)2] (dmb=2,3-dimethylbutadiene), yielding a compound formulated as [Ir{κ2-N,C-(pyC(H)C(C(O)Me))}(CO)(μ-Cl)(Me)]2, 2 . Treatment of dimer 2 with DMSO or PMe3 produced the complexes[Ir{κ2-N,C-(pyC(H)C(C(O)Me)}(CO)Cl(Me)L] (L=DMSO, 3 a ; PMe3, 3 b ). Plausible mechanisms for the reactions leading to complexes 1 and 2 are proposed by means of DFT calculations. 相似文献
53.