Bis(phosphinoselenoic amides) as versatile chelating ligands for alkaline earth metal (Mg, Ca, Sr and Ba) complexes: syntheses, structure and ε-caprolactone polymerisation
作者:Ravi K. Kottalanka、Harinath Adimulam、Jayeeta Bhattacharjee、H. Vignesh Babu、Tarun K. Panda
DOI:10.1039/c4dt00669k
日期:——
series of heavier alkaline earth metal complexes with N,N′-(ethane-1,2-diyl)bis(P,P-diphenylphosphinoselenoic amide) using two synthetic routes. In the first route, the heavier alkaline earth metal bis(trimethylsilyl)amides [MN(SiMe3)2}2(THF)n] (M = Ca, Sr, Ba), when treated with phosphinoselenoic amine [Ph2P(Se)NHCH2CH2NHPPh2(Se)] (1), afforded the corresponding alkaline earth metal complexes of the
我们在这里报告了两个较重的碱土金属与N,N '-(乙烷-1,2-二基)双(P,P-二苯膦基硒代酰胺)的配合物。在第一种方法中,当用膦硒代胺[Ph 2 P处理]时,较重的碱土金属双(三甲基甲硅烷基)酰胺[M N(SiMe 3)2 } 2(THF)n ](M = Ca,Sr,Ba)(Se)NHCH 2 CH 2 NHPPh 2(Se)](1),得到组成为[(THF)3 M Ph 2 P(Se)NCH2 CH 2 NPPh 2(Se)}] [M = Ca( 2),Sr( 3),Ba( 4)]。金属配合物2-4也可通过一锅反应获得,该反应通过化合物1和[KN(SiMe 3) 2 ]的反应原位生成膦基硒代酰胺钾,然后在其中加入相应的金属二碘化物。在室温下为THF。镁配合物[(THF) 3 Mg Ph 2 P(Se)NCH 2 CH 2 NPPh 2(Se)}]( 5)也已准备好。碱土金属配合物