Molybdenum dinitrogen complexes facially coordinated by linear tridentate PEP ligands (E = N or P): impact of the central E donor in trans-position to N<sub>2</sub>
作者:Svea Hinrichsen、Ann-Christin Schnoor、Katharina Grund、Benedikt Flöser、Alexander Schlimm、Christian Näther、Jan Krahmer、Felix Tuczek
DOI:10.1039/c6dt02316a
日期:——
The syntheses of molybdenum dinitrogen complexes supported by the tridentate PEP ligands (E = N, P) prPP(Ph)P = (Ph2PCH2CH2CH2)2P(Ph), prPPHP = (Ph2PCH2CH2CH2)2PH, PN(Ph)P = (Ph2PCH2CH2)2N(Ph) and prPN(Ph)P = (Ph2PCH2CH2CH2)2N(Ph) are reported. Together with the coligand dmpm = (CH3)2PCH2P(CH3)2 dinitrogen complexes of the type [Mo(N2)(PEP)(dmpm)] are formed. The new systems are characterized by IR
三齿PEP配体(E = N,P)prPP(Ph)P =(Ph 2 PCH 2 CH 2 CH 2)2 P(Ph),prPPHP =(Ph 2 PCH 2 CH 2报告了CH 2)2 PH,PN(Ph)P =(Ph 2 PCH 2 CH 2)2 N(Ph)和prPN(Ph)P =(Ph 2 PCH 2 CH 2 CH 2)2 N(Ph)。连同大肠菌dmpm =(CH 3)2 PCH形成类型为[Mo(N 2)(PEP)(dmpm)]的2 P(CH 3) 2二氮配合物。新系统的特征在于IR和NMR光谱,并与文献中已知的复合物[Mo(N 2)(dpepp)(dmpm)]( 1)(dpepp = PhP(CH 2 CH 2 PPh 2) 2)进行了比较。关于相应N 2的稳定性,研究了用N取代dpepp的中心P-供体和用C 3键取代其C 2以及通过EH功能交换EPh的后果。-复杂。重要的是,当用反式胺供体代替反式膦时,N