Complexes of Ruthenium(III) with dimethylsulphoxide—I. [Ru2Cl6(DMSO)4], fac and mer isomers of [RuCl3(DMSO)3]: Versatile starting materials for the synthesis of ruthenium(III) complexes
作者:Uma Charan Sarma、K.P. Sarma、Raj K. Poddar
DOI:10.1016/s0277-5387(00)80404-0
日期:1988.1
Abstract Ruthenium(III) complexes with dimethylsulphoxide (DMSO), [RuCl 3 (DMSO) 2 ] 2 and [RuCl 3 (DMSO) 3 ] were synthesized and characterized by physical methods. The fac and mer isomers of [RuCl 3 (DMSO) 3 ], were obtained. The fac isomer has all S-bonded DMSO whereas mer has both S- and O-bonded DMSO molecules. The above three compounds were reacted with S, P, As, N and O donor ligands leading
摘要合成了钌(III)与二甲亚砜(DMSO),[RuCl 3(DMSO)2] 2和[RuCl 3(DMSO)3]的配合物,并通过物理方法对其进行了表征。获得了[RuCl 3(DMSO)3]的fac和mer异构体。fac异构体具有所有S键结合的DMSO,而mer具有S键和O键结合的DMSO分子。根据反应条件和引入配体的性质,使上述三种化合物与S,P,As,N和O供体配体反应,导致部分或完全取代DMSO分子。S,P和As供体配体可完全取代DMSO分子,而N和O供体配体通常可部分取代。制备并表征的新化合物为[RuCl 3 L 2(DMSO)](其中L = py,CH 3 CN; L 2 = 1,10-菲咯啉,2,2'-联吡啶)和[Ru(acac)(DMSO) 2 Cl 2]。
Ruthenium-Catalyzed Isomerization of Allylic Alcohols: Oxidation State Determines Resistance Against Diene Inhibition
作者:Robert C. van der Drift、Jeroen W. Sprengers、Elisabeth Bouwman、Wilhelmus P. Mul、Huub Kooijman、Anthony L. Spek、Eite Drent
couples RuIII/II (0.11 V) and Ru IV/III (1.73 V). The analogous Ru II complex cis,cis-[RuCl2(dmso)2(phen)] (2) shows one reversible wave at 1.08 V, corresponding to the Ru III/II couple. Both complexes exhibit high catalytic activity in the isomerization of 3-buten-2-ol to butanone. The initial turnover frequency (TOF) for 1 in diglyme/water at 130 °C is 295 h −1 with a firstorder kini of 0.6 h −1 , while
新的复合体-[RuCl3(dmso)(phen)] (1) 已制备并通过 X 射线衍射表征。钌中心位于扭曲的八面体环境中,三个氯离子以 mer 方式配位,S 键合的 dmso 配体与苯氮原子之一发生反式。电化学实验显示乙腈溶液中有两个可逆波,对应于 RuIII/II (0.11 V) 和 Ru IV/III (1.73 V) 对。类似的 Ru II 络合物 cis,cis-[RuCl2(dmso)2(phen)] (2) 在 1.08 V 处显示一个可逆波,对应于 Ru III/II 对。两种配合物在 3-buten-2-ol 异构化为丁酮中都表现出高催化活性。在 130 °C 下二甘醇二甲醚/水中 1 的初始转换频率 (TOF) 为 295 h -1 ,一阶 kini 为 0.6 h -1 ,而 2 达到初始 TOF 为 260 h -1 且 kini 为 0。5小时 -1 。以 1 作为催化剂前体获得了
New synthetic routes for the preparation of ruthenium-1,10-phenanthroline complexes. Tests of cytotoxic and antibacterial activity of selected ruthenium complexes
Three novel complexes have been prepared through reactions of precursor [(dmso)(2)H][trans-RuCl4(dmso-S)(2)] (P) and 1,10-phenanthroline (phen) at different conditions. Whereas the analogs of mer-[RuCl3(dmso-S)(phen)] (1) and [Ru(phen)(3)]Cl-2 center dot 6CH(3)OH(3 center dot 6CH(3)OH) have already been prepared by other synthetic routes before, product (H3O)[RuCl4(phen)(3)]center dot 4H(2)O (2 center dot 4H(2)O) is unprecedented. In the latter, isolated from highly acidic medium, also the second, strongly bound dmso molecule in precursor P was substituted by chloride. Biological activities of 1 and previously isolated ruthenium-purine complexes ([mer-RuCl3(dmso-S)(acv)(CH3OH)] (4) (acv = acyclovir); [trans-RuCl4(dmso-S)(guaH)] (5) (guaH = protonated guanine) were tested and compared. These data show that compounds 1, 4 and 5 are slightly cytotoxic against B-16 malignant melanoma cells but not against non-transformed V-79-379A cells. The results indicate that coordinated phen ligand increases the cytotoxicity of 1 in comparison to ruthenium precursor. The inability of tested compounds to induce lysis of bovine erythrocytes shows that their cytotoxic effect is not due to the membrane damage.
Roles of DMSO-type ruthenium complexes in disaggregation of prion neuropeptide PrP106–126
作者:Dengsen Zhu、Cong Zhao、Xuesong Wang、Wenji Wang、Baohuai Wang、Weihong Du
DOI:10.1039/c5ra21523d
日期:——
DMSO-type ruthenium complexes with aromatic ligands disaggregate the mature PrP106–126 fibrilsviametal coordination and hydrophobic interaction.