名称:
Synthesis of mono- and binuclear [{Mo(CO)3L}n(dpq)] [n = 1,2; L = CO, MeCN, PPh3; dpq = 2,3-bis(2-pyridyl)quinoxaline] complexes and heterobimetallic adduct formation with hexafluoroacetylacetonatecobalt(II)
摘要:
The new compounds [{MO(CO)4}n(dpq)] [n = 1,2; dpq = 2,3-bis(2-pyridyl) quinoxaline] on refluxing in MeCN produce the acetonitrile complexes [{Mo(CO)3 (NCMe)}n(dpq)] (n = 1,2). These acetonitrile derivatives behave as precursors for the tricarbonyl-based fragments [{MO(CO)3}n(dpq)] (n = 1,2); they react in CH2Cl2 at room temperature with PPh3 to afford the [{Mo(CO)3(PPh3)}n(dpq)] (n = 1,2) complexes. In addition, the ligating properties of the novel mononuclear products [Mo(CO)4(dpq)] and [Mo(CO)3(PPh3)(dpq)] towards [Co(hfacac)2] are also reported. The new substances were characterized by IR and electronic spectroscopy.