Transition metal complexes of the pyridylphosphine ligand o-C<sub>6</sub>H<sub>4</sub>(CH<sub>2</sub>PPy<sub>2</sub>)<sub>2</sub>
作者:Teresa F. Vaughan、John L. Spencer
DOI:10.1039/c6dt02041k
日期:——
pyridylphosphine ligand o-C6H4(CH2PPy2)2 (Py = 2-pyridyl) are reported. The phosphine selenide was synthesised and the 1JPSe value of 738 Hz indicates the phosphorus atoms have a similar basicity to PPh3. The ligand reacts with platinum(II) and palladium(II) complexes to give simple diphosphine complexes of the type [MX2(PP)] (M = Pt, X = Cl, I, Me, Et; M = Pd, X = Cl, Me). When the ligand is reacted with
报道了吡啶基膦配体o -C 6 H 4(CH 2 PPy 2)2(Py = 2-吡啶基)的合成和配位行为。合成了硒化膦,738 Hz的1 J PSe值表明磷原子的碱性与PPh 3相似。配体与铂(II)和钯(II)配合物反应,生成简单的[MX 2]型二膦配合物(PP)](M = Pt,X = Cl,I,Me,Et; M = Pd,X = Cl,Me)。当配体与氯甲基(六-1,5-二烯)铂反应时,会生成[PtClMe(PP)]络合物,由此产生一系列[PtMeL(PP)] +(L = PPh 3类型的不对称铂络合物,PTA,SEt 2和吡啶)。这使得能够比较一系列配体的顺式和反式影响。基于这些配合物的31 P NMR数据,编制了以下顺式影响序列:Py≈Cl> SEt 2 > PTA> PPh 3。[PtClMe(PP)]与NaCH(SO 2 CF 3)2的反应一氧化碳慢慢形成一个酰基复合物,CO
The effect of structural heterogeneity upon the microviscosity of ionic liquids
作者:Ryan Clark、Mohd A. Nawawi、Ana Dobre、David Pugh、Qingshan Liu、Aleksandar P. Ivanov、Andrew J. P. White、Joshua B. Edel、Marina K. Kuimova、Alastair J. S. McIntosh、Tom Welton
DOI:10.1039/d0sc02009e
日期:——
The behaviour of two molecular rotors have been studied in various ionic liquids. Time resolved fluorescence shows a complex relationship between the bulk viscosity of the ionic liquid and microstructure of solvent around each molecular rotor.