Syntheses, characterizations and structures of ruthenium carbene and allenylidene complexes supported by 1,4,7-trimethyl-1,4,7-triazacyclononane (Me 3 tacn) ligands

被引：1
|
作者：
Qian, Bing-Feng [1 ]
Gao, Yang [1 ]
Xu, Qian-Ya [1 ]
Jia, Ai-Quan [1 ]
Shi, Hua-Tian [1 ]
Zhang, Qian-Feng [1 ]
机构：
[1] Anhui Univ Technol, Inst Mol Engn & Appl Chem, Maanshan 243002, Anhui, Peoples R China
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2022年 / 976卷
关键词：
Ruthenium; 1,4,7-Trimethyl-1,4,7-triazacyclononane; Ruthenium carbene; Ruthenium allenylidene; Synthesis; REACTIVITY; METAL; CATALYSTS; ALKYNES;
D O I：
10.1016/j.jorganchem.2022.122429
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Treatment of ruthenium(II) precursor [(Me(3)tacn)Ru(dmso)Cl-2] (Me(3)tacn = 1,4,7-trimethyl-1,4,7triazacyclononane, dmso = dimethylsulfoxide) (1) with concentrated HCl in the presence of air afforded the ruthenium(III) complex [(Me(3)tacn)RuCl3.H2O] (2), from which a series of bipyridine-ruthenium(II) complexes [(Me(3)tacn)Ru(R-bpy)(H2O)](PF6)(2) (bpy = 2,2'-bipyridine) was obtained according to our previous work. Reactions of [(Me(3)tacn)Ru(R-bpy)(H2O)](PF6)(2) and 1,1-diphenylpropargyl alcohol afforded ruthenium(II) methoxycarbene complexes [(Me-3 tacn)(R-bpy)Ru= C(OMe)CH= CPh2](PF6)(2) (R = H, 3; 4,4' -Me-2, 5; 5,5' -Me 2, 7; 4,4' -di-tBu, 9) and ruthenium(II) allenylidene complexes [(Me(3)tacn)(Rbpy)Ru =C=C= CPh2](PF6)(2) (R = H, 4; 4,4' -Me-2, 6; 5,5' -Me 2, 8; 4,4' -di-Bu-t, 10) under different solvent conditions. Complexes 3-10 were well characterized by infrared, UV/Vis, mass spectrometry, and NMR spectroscopies. The molecular structures of complexes 5, 7, and 8 have been also established by singlecrystal X-ray diffraction. (c) 2022PublishedbyElsevierB.V.
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