Gold(<scp>I</scp>) complexes derived from secondary phosphines: [{Au(µ-PR<sub>2</sub>)}<sub>n</sub>],[(AuBr)<sub>2</sub>(µ-PPh<sub>2</sub>)]<sup>–</sup>, [AuX(PHR<sub>2</sub>)], and [{Au(PHR<sub>2</sub>)<sub>n</sub>}]<sup>+</sup>. Crystal structure of [AuBr(PHPh<sub>2</sub>)]
作者:David B. Dyson、R. V. Parish、Charles A. McAuliffe、Robin G. Pritchard、Roy Fields、Brian Beagley
DOI:10.1039/dt9890000907
日期:——
The interaction of secondary phosphines with a variety of gold(I) compounds has been studied. In the presence of bases or polar solvents, polymeric gold(I) phosphides [Au(µ-PR2)}n] are formed. When these are obtained in the absence of additional ligands they are soluble, presumably with ring structures. More usually, insoluble forms are found, presumably with chain structures. The probable formation
已经研究了次膦与各种金(I)化合物的相互作用。在碱或极性溶剂的存在下,形成聚合的金(I)磷化物[Au(µ-PR 2)} n ]。当在没有其他配体的情况下获得它们时,它们是可溶的,大概具有环结构。更通常地,发现不溶形式,大概具有链结构。讨论了由[AuX(PH R 2)]型配合物形成这些物质的可能性,并分离了后者的配合物(X = Cl或Br,R = Ph或对甲苯基)和新型单体磷酸酯桥联阴离子[(AuBr)2(µ-PPh 2)] –描述。在非极性溶剂中,会形成一系列仲膦配合物,[Au(PHPh 2)n ] +(n = 2-4),但是对于n = 3而言,似乎歧化不稳定。该化合物的特征在于31 P nmr和197 AuMössbauer光谱学,[AuBr(PH Ph 2)]情况下的X射线晶体学。
Tunable Multicolor Phosphorescence of Crystalline Polymeric Complex Salts with Metallophilic Backbones
作者:Qi Liu、Mo Xie、Xiaoyong Chang、Shuang Cao、Chao Zou、Wen‐Fu Fu、Chi‐Ming Che、Yong Chen、Wei Lu
DOI:10.1002/anie.201803965
日期:2018.5.22
(NHC=N‐heterocyclic carbene; M=Au or Cu; X=halide, cyanide or arylacetylide) complexsalts were synthesized by co‐precipitation of [Au(NHC)2]+ cations and [MX2]− anions. These salts contain crystallographically determined polymeric Au⋅⋅⋅Au or Au⋅⋅⋅Cu interactions and are highly phosphorescent with quantum yields up to unity and emission color tunable in the entire visible regions. The nature of the emissive excited
通过共沉淀[Au(NHC),合成了35种[Au(NHC)2 ] [MX 2 ](NHC = N-杂环卡宾; M = Au或Cu; X =卤化物,氰化物或芳基乙炔化物)复合盐。 )2 ] +阳离子和[MX 2 ] -阴离子。这些盐包含晶体学确定的聚合物Au····Au或Au·····Cu相互作用,并且具有高磷光性,量子产率高达1,并且在整个可见光区域内的发射颜色可调。发射激发态的性质通常被分配给配体(阴离子)-to-配体由d辅助(阳离子)电荷转移过渡10 ⋅⋅⋅d 10嗜金属性。可以通过控制三组分共结晶或通过外延生长来进一步调整发射特性。通过筛选组合池,已经获得了量子产率高于70%的白色发光磷光体的正确配方。
Vibrational and solid-state phosphorus-31 nuclear magnetic resonance spectroscopic studies of 1 : 1 complexes of PPh3 with gold(I) halides; crystal structure of [AuBr(PMe3)]
作者:Klaus Angermair、Graham A. Bowmaker、Eban N. de Silva、Peter C. Healy、Brian E. Jones、Hubert Schmidbaur
DOI:10.1039/dt9960003121
日期:——
contacts of similar length. Possible reasons, including an interaction between ν(Au2) and δ(PAuX) modes, are discussed. The solid-state cross polarization magic angle spinning 31P NMR spectra of the chloride and iodide complexes consist of doublets due to the presence of 1J(197Au–31P) coupling. This is a rare observation of spin–spincoupling between the spin I=½31P nucleus and the strongly quadrupole
Vibrational and solid state (CP/MAS) 31P NMR spectroscopic studies of bis(trimethylphosphine)gold(I) halides
作者:E.N. de Silva、G.A. Bowmaker、P.C. Healy
DOI:10.1016/s0022-2860(99)00204-5
日期:2000.1
described. The IR, Raman and CP MAS 31 P NMR spectra of the X=Cl, Br compounds are essentially identical, whereas those for X=I show differences that are suggestive of relatively minor differences in the crystalstructure relative to the X=Cl, Br compounds. The latter compounds exist as the ionic species [Au(PMe 3 ) 2 ] + X − , and the X=I complex is also essentially ionic, but with a possible weak