Synthesis and Structural Characterization of the Ruthenium Complexes Based on ortho-Carborane-1,2-diselenolate Ligand and Terminal Alkynone
摘要:
lithium, selenium, and [(p-cymene)RuCl2]2 under argon leads to 16-electron complex (p-cymene)Ru(Se2C2B10H10) (1), and [(p-cymene)RuCl2]2 reacts with Li2(Se2C2B10H10) in the presence of excess sulfur to generate dinuclear complex (p-cymene)Ru(µ-S2)Ru(Se2C2B10H10)2 (2). Treatment of 1 and 2 with HC≡CCOCH3 affords addition complexes (p-cymene)Ru(Se2C2B10H10)(HC=C−COCH3) (3) and (p-cymene)Ru(µ-S2)Ru(Se2C2B10H10)2(R1C=CR2)
Construction of 18-electron arene-ruthenium complexes based on ortho-carborane-1,2-diselenolate ligand
摘要:
Treatment of ortho-carborane, n-butyl lithium, selenium and [(p-cymene) RuCl2](2) under argon leads to complexes (p-cymene) Ru(Se2C2B10H10) (I) and (p-cymene)(2)Ru-2(mu(2)-Se2C2B10H10) (II). The further reaction of 16-electron complex I with RC CCO2Me affords addition complexes (p-cymene)Ru(Se2C2B10H10)(RC= C-CO2Me) (III) (R = H (IIIa); CO2Me (IIIb)). These complexes were characterized by elemental analysis, mass, and NMR spectroscopy. X-ray structural analyses were performed on II and IIIa.
Synthesis of heteronuclear (MoRu2) clusters from 16-electron half-sandwich complexes (p-Cymene)Ru[E2C2(B10H10)] (E=S, Se)
作者:Shuang Liu、Xin Wang、Guo-Xin Jin
DOI:10.1016/j.jorganchem.2005.09.034
日期:2006.1
The heterometallic cluster complexes (p-Cymene)Ru[S2C2(B10H10)]}Mo(CO)(2)(CO)(3)Ru[S2C2(B10H10)]} (2) and (p-Cymene)Ru[Se2C2(B10H10)]}(2)Mo(CO)(2) (3) (p-Cymene = eta(6)-4-isopropyl-toluene) have been synthesized from the reactions of 16-electron half-sandwich ruthenium 1,2-dichalcogenolate carborane complexes (p-Cymene)Ru[E2C2(B10H10)] (E = S(1a), Se(1b)) with Mo(CO)(3)(Py)(3) in the presence of BF3 (.) Et2O. The complexes of 2 and 3 were characterized by elemental analysis and IR, NMR spectra. The molecular structure of 2 has been characterized by single-crystal X-ray diffraction analysis. Complex 2 is unsymmetrical and the two Ru-Mo single bonds (2.7893(14). 2.8189(13) angstrom) are each supported by a symmetrically bridging o-carborane-1,2-dithiolato ligand. (c) 2005 Elsevier B.V. All rights reserved.
Multinuclear Self-Assembly via a (<i>p</i>-Cymene)ruthenium Unit and an <i>o</i>-Carborane Selenolate Ligand
作者:Jiurong Hu、Jialin Wen、Dehong Wu、Rui Zhang、Guifeng Liu、Qibai Jiang、Yizhi Li、Hong Yan
DOI:10.1021/om1010275
日期:2011.1.24
Treatment of o-carborane, n-butyllithium, selenium, and [(p-cymene)RuCl2](2) under argon leads to the complexes (p-cymene)Ru(Se2C2B10H10) (1), [(p-cymene)RuCl(Se-SeC2B10H11)][(p-cymene)Ru(Se2C2B10H10)] (2), [(p-cymene)Ru-2(Se2C2B10H10)(2)][(p-cymene)Ru(Se2C2B10H9)] (3), and [(p-cymene)Ru(Se2C2B10H9) Ru(Se2C2B10H10)](2) (4). 2 contains a rhombic Ru2Se2 core and can be considered as an adduct of the two 16e half-sandwich monomers (p-cymene)Ru(Se2C2B10H10) (1) and (p-cymene)RuCl(Se-SeC2B10H11). In 3 three o-carborane-1,2-diselenolate ligands bridge the adjacent Ru atoms and one [Se2C2B10H9](3-) unit is in a tridentate binding mode with a Ru-B bond. In 4, two identical dinuclear (p-cymene)Ru-2(Se2C2B10H9)(Se2C2B10H10) subunits connect to each other through two Se atoms of two individual [Se2C2B10H10](2-) ligands and a metal-induced B-H activation occurs as well. However, if the above reaction mixture is exposed to air, the unexpected product [(p-cymene)Ru](2)(Se2C2B9H10)Ru-2(Se2C2B10H10)(3)(mu-O) (5) can be isolated in moderate yield. It contains a novel Ru4Se8O core generated from three [Se2C2B10H10](2-), one nido-[Se2C2B9H10](3-), and one mu-oxo unit. Complexes 2-5 have been characterized by elemental analyses, mass and NMR spectra, and X-ray crystallography.