2-pyridyl groups were found to react with organometallic compounds affording 2,2′-bipyridyl, 2-substituted pyridines and pyridine in substantial yields. Both ligand exchange and ligand coupling appear to take place within the penta-coordinated phosphorus intermediates formed incipiently.
An efficient one-pot access to di(2-pyridyl)phosphine oxides Py2P(R)=O and bis[di(2-pyridyl)phosphine oxides] Py2P(O)–Z–P(O)Py2 has been developed based on the reaction of available tris(2-pyridyl)phosphine with various organic halides, followed by treatment of the resulting phosphonium salts with alkali in situ. The isolated yields of the phosphine oxides were in the range 40–96%.
Bright green-to-yellow emitting Cu(<scp>i</scp>) complexes based on bis(2-pyridyl)phosphine oxides: synthesis, structure and effective thermally activated-delayed fluorescence
作者:Alexander V. Artem'ev、Maxim R. Ryzhikov、Ilya V. Taidakov、Mariana I. Rakhmanova、Evgenia A. Varaksina、Irina Yu. Bagryanskaya、Svetlana F. Malysheva、Nataliya A. Belogorlova
DOI:10.1039/c7dt04758d
日期:——
A family of brightly luminescentdinuclearcomplexes of [Cu(μ2-X)(N^N)]2 type (X = I or SCN) has been synthesized in 76–90% yields by the reaction of bis(2-pyridyl)phosphine oxides (N^N) with the corresponding Cu(I) salts. The X-ray diffraction study reveals that the Cu2I2 core of the [Cu(μ2-I)(N^N)]2 complexes has either a butterfly- or rhomboid-shaped structure, while the eighth-membered [Cu(SCNNCS)Cu]