Synthesis and X-ray crystal structures of dimeric nickel(0) and tetrameric copper(I) iodide complexes of 2-diphenylphosphino-3-methylphosphinine
作者:Nicolas Mézailles、Pascal Le Floch、Klaus Waschbüsch、Louis Ricard、François Mathey、Clifford P. Kubiak
DOI:10.1016/s0022-328x(97)00071-5
日期:1997.8
under CO atmosphere. The crystalstructure of 2 has been determined by X-ray crystallography. As the analogous dppm complex, 2 adopts a W-frame structure with two bridging ligands 1, two terminal carbonyl ligands and one bridging carbonyl ligand. An electrochemical study reveals that the electron density in the Ni2 core is considerably reduced in 2 compared to the dppm complex.
Palladium(0)-catalyzed functionalization of bromophosphinines
作者:Pascal Le Floch、Duncan Carmichael、Louis Ricard、Francois Mathey
DOI:10.1021/ja00076a027
日期:1993.11
ine gives either 2,6-bis(diphenylphosphino)- or 2-(diphenylphosphino)phosphinines according to the starting materials. In the case of 2,4,6-tribromophosphinines, the ortho selectivity of the functionalizations probably reflects an initial coordination of [PdL 2 ] to the phosphinine phosphorus
Accessing Alkyl- and Alkenylcyclopentanes from Cr-Catalyzed Ethylene Oligomerization Using 2-Phosphinophosphinine Ligands
作者:Robert J. Newland、Alana Smith、David M. Smith、Natalie Fey、Martin J. Hanton、Stephen M. Mansell
DOI:10.1021/acs.organomet.8b00063
日期:2018.3.26
2-phosphinophosphinines were compared to those of bidentate diphosphorus ligands computationally, contextualizing them in the ligand knowledge base for bidentate P,P donor ligands (LKB-PP), and were found to occupy an area of ligand space adjacent to Ar2PN(R)NAr2 ligands that have been successfully used in ethylene oligomerization reactions, but with well-separated properties in the second principal component. Testing
将2-膦膦膦2-PPh 2 -3-Me-6-SiMe 3 -PC 5 H 2与盐酸进行甲硅烷基化反应,得到2-PPh 2 -3-Me-PC 5 H 3,表明该双齿的后期修饰杂环配体。这些配体的第6族金属羰基配合物表明κ 2结合和65.1-68.3非常小咬角°,并且还证明2- phosphinophosphinines供体性质可通过森达的存在容易地调谐3基团,其产生更多的π接受的次膦配体。通过计算比较了2-膦基膦的性质与双齿二磷配体的性质,在双齿P,P供体配体(LKB-PP)的配体知识库中对它们进行了上下文描述,发现它们占据了与Ar 2相邻的配位空间PN(R)NAr 2配体已成功用于乙烯低聚反应,但在第二主成分中具有良好的分离特性。在Cr催化的乙烯低聚反应中测试2-膦基膦亚胺显示出与标准PNP配体的主要区别,因为形成了高比例的烷基和烯基环戊烷。这表明2-膦基膦亚甲基的不同供体性质影响在金属环