Reactions of low valent transition metal complexes with fluorocarbons. Part XXIII. Pentafluorophenyl azide and hexafluoroazomethane
作者:J. Ashley-Smith、M. Green、F. G. A. Stone
DOI:10.1039/dt9720001805
日期:——
Reaction between pentafluorophenylazide and Ni(1,5-C8H12)2 affords green crystals of a tetra-azadiene complex Ni[(C6F5)2N4](1,5-C8H12). Cyclo-octa-1,5-diene is displaced by the ligands L = PPh3, PPh2Me, PPhMe2, or P(OMe)3 and L2= bipyridyl to form Ni[(C6F5)2N4]L2. 1H N.m.r. measurements on the bisdimethylphenylphosphine and bis(trimethyl phosphite) Complexes suggest two different modes of bonding
五氟苯基叠氮化物与Ni(1,5-C 8 H 12)2之间的反应产生四氮杂二烯配合物Ni [(C 6 F 5)2 N 4 ](1,5-C 8 H 12)的绿色晶体。环辛基-1,5-二烯被配体L = PPh 3,PPh 2 Me,PPhMe 2或P(OMe)3和L 2 =联吡啶取代,形成Ni [(C 6 F 5)2 N 4 ] L 2。1个对双二甲基苯基膦和双(亚磷酸三甲酯)配合物的H Nmr测量表明,四氮杂二烯配体的键合方式有两种。
Reversible C−C Bond Cleavage of a Cobalt Diketimide into an Elusive Cobalt Aryl Nitrenoid Complex
作者:Yunjung Baek、Theodore A. Betley
DOI:10.1002/anie.202115437
日期:2022.4.19
A CoII diketimide complex was synthesized via an oxidative group transfer reaction of an aryl azide with a CoI synthon supported by a sterically demanding (TrL) dipyrrin ligand. Kinetic analysis established a pre-equilibrium between the diketimide and its monomeric Co aryl nitrenoid complex that is competent for intermolecular H-atom abstraction.
Co II双酮酰亚胺络合物是通过芳基叠氮化物与 Co I合成子的氧化基团转移反应合成的,Co I 合成子由空间要求高的 ( Tr L) 双吡啶配体支持。动力学分析在双酮酰亚胺与其单体 Co 芳基亚硝基络合物之间建立了预平衡,该络合物能够进行分子间 H 原子提取。
Banks,R.E.; Prakash,A., Journal of the Chemical Society. Perkin transactions I, 1974, p. 1365 - 1371
作者:Banks,R.E.、Prakash,A.
DOI:——
日期:——
Main‐Group‐Metal and Transition‐Metal Complexes Containing Fluorinated β‐Diketiminate Ligands
作者:Kevin Huse、Christoph Wölper、Stephan Schulz
DOI:10.1002/ejic.201800414
日期:2018.8.15
The synthesis of fluorinated β‐diketimine LH 1 (L = HC[C(CF3)NC6F5]2) and its reactions with main‐group‐metal and transition‐metalcomplexes, yielding LAlMe2 4, LZnEt 5, LCu(C6D6) 6 and LCuCO 7, is reported. 1–7 were characterized by IR and NMR spectroscopy (1H, 13C, 19F), elemental analysis and single‐crystal X‐ray diffraction. The C6F5 substituents strongly reduce the π‐back‐bonding capacity of the
氟化β-二酮亚胺LH 1(L = HC [C(CF 3)NC 6 F 5 ] 2)的合成及其与主族金属和过渡金属配合物的反应,生成LAlMe 2 4,LZnEt 5,LCu报道了(C 6 D 6)6和LCuCO 7。1 – 7的特征在于IR和NMR光谱(1 H,13 C,19 F),元素分析和X射线单晶衍射。C 6 F 5红外光谱显示7中的取代基会极大地降低β-二酮基配体的π反向键合能力。