Ruthenium Complexes of Stibino Derivatives of Carboxylic Amides: Synthesis and Characterization of Bidentate Sb,E, Tridentate Sb,E<sub>2</sub>, and Tetradentate Sb,E<sub>3</sub> (E = N and O) Ligands and Their Reactivity Toward [RuCl<sub>2</sub>(PPh<sub>3</sub>)<sub>3</sub>]
作者:Robert Gericke、Jörg Wagler
DOI:10.1021/acs.inorgchem.0c00466
日期:2020.5.4
Neutral bi-, tri-, and tetradentate ligands of the type Ph3-xSb(L)x [x = 1 (1), 2 (2), and 3 (3). L = La = phthalimidinyl (1a, 2a, and 3a), Lb = 2-pyridyloxy (1b, 2b, and 3b)] have been synthesized and characterized. Reaction of the Sb,E and Sb,E2 ligands with [RuCl2(PPh3)3] proceeded under anion scrambling with formation of complexes of type [Ph2Sb(μ-L)2Ru(PPh3)(μ-Cl)]2 (5) or [PhSb(μ-L)3RuCl(PPh3)]
Ph3-xSb(L)x类型的中性双齿,三齿和四齿配体[x = 1(1),2(2)和3(3)。已经合成并表征了L = La =邻苯二甲酰亚胺基(1a,2a和3a),Lb = 2-吡啶氧基(1b,2b和3b)]。Sb,E和Sb,E2配体与[RuCl2(PPh3)3]的反应在阴离子加扰下进行,形成了[Ph2Sb(μ-L)2Ru(PPh3)(μ-Cl)] 2型配合物(5)或[PhSb(μ-L)3RuCl(PPh3)](8)以及各种副产物。Sb,E3配体与[RuCl2(PPh3)3]的反应提供了高度多样化的产物混合物。通过向反应混合物中添加所需化学计量的HLa或HLb和支持碱,可以成功地合成5和8型配合物。由两个(5型)或三个(8型)邻苯二甲酰亚胺基或2-吡啶氧基配体桥接的Sb-Ru键,已使用DFT级(NBO / NLMO和AIM)的量子化学计算进行了研究。用氟离子处理8型配合物导致形成[PhFSb