ansa-Metallocenderivate des Samariums und Ytterbiums mit ‘weichen’ Donorliganden
作者:Frank T. Edelmann、Melanie Rieckhoff、Ionel Haiduc、Ioan Silaghi-Dumitrescu
DOI:10.1016/0022-328x(93)80239-8
日期:1993.4
derivative chemistry of the organolanthanide(II) complexes [Me4C2(C5H4)2]SM (1) and [Me4C2(C2H4)2]Yb (2) has been investigated. Oxidation of 2 with tBUCI affords the chloro-bridged binuclear ytterbium(III) complex (μ-Cl)2[Me4C2(C2H4)2]Yb}2(4). In contrast, treatment of 1 with tBuCI yields the mononuclear derivative [Me4C2(C5H4)2]SmCl(THF) (3). An organosamarium(III) selenolate, [Me4C2(C5H4)2]Sm(SeMes) (5)
研究了有机镧系元素(II)配合物[Me 4 C 2(C 5 H 4)2 ] SM(1)和[Me 4 C 2(C 2 H 4)2 ] Yb(2)的派生化学。用t BUCI氧化2得到氯桥联的双核(III)络合物(μ-Cl)2 [Me 4 C 2(C 2 H 4)2 ] Yb} 2 (4)。相反,用t BuCl处理1得到单核衍生物[Me 4 C 2(C 5 H 4)2 ] SmCl(THF)(3)。通过还原Se-Se键的裂解,由1和二烯丙基亚硒酸酯制备硒酸有机sa (III),[Me 4 C 2(C 5 H 4)2 ] Sm(SeMes)(5)。类似地,二硫代氨基甲酸酯和二硫代磷酸酯[Me 4 C 2(C 5 H 4)2 ] Ln(S 2 CNMe 2)(Ln = Sm(6),Yb(7))和[Me 4 C 2(C 2 H 4)2 ] Ln S 2 P(OMe)2 }(Ln = Sm (8),
Phosphorothioates—III
作者:Bernard Miller
DOI:10.1016/s0040-4020(01)98479-0
日期:1964.1
Organometallicreagents attack the SS bonds of phosphorothionyl disulphides (V) to give high yields of the corresponding S-substituted phosphorodithioates. S-alkenyl and S-alkynyl phosphorodithioates, previously unknown, were prepared in this manner. No indication of attack at phosphorus atoms, of reduction of SS bonds, or of benzylic rearrangements of the organo- metallic reagents were observed
Photoreduction of the paraquat dication (1,1′-dimethyl-4,4′-bipyridinium) by visible light via its charge transfer complex with a dithioanion
作者:Alain Deronzier
DOI:10.1039/c39820000329
日期:——
Photoproduction by visiblelight of the mild reductant 1,1′-dimethyl-4,4′-bipyridinium (PQ·+) occurs to an appreciable extent in acetonitrile via irradiation of the charge-transfer complex of PQ2+ with a dithioanion.
A photo-induced redox reaction by visible light via a charge transfer complex
作者:Alain Deronzier
DOI:10.1016/s0040-4039(01)81311-3
日期:1984.1
concomitant oxidation of O,O′-dialkyldithiophosphate anions (dtp−) have been achieved by visible irradiation of their acetonitrile solution in presence of a bipyridinium dication ; the later via its chargetransfercomplex with dtp− acts as a light-harvest and as an electron relay.
Effect of solute-co-ordinating solvent interactions and temperature on the EPR and electronic spectra of bis(dithiophosphato)copper(II)
作者:Nicola D Yordanov、Kalina Ranguelova
DOI:10.1016/s1386-1425(01)00707-7
日期:2002.4
The self-redox reaction proceeding between two molecules of the complex bis(disubstituted-dithiophosphato)copper(II), CuII(R2-dtp)2, is studied by EPR and UV-VIS spectroscopy in DMFA, DMSO and pyridine. The effect of temperature and disulphide concentration in the solutions is also evaluated. The EPRspectra show that the g-values of CuII(R2-dtp)2 increase when it is dissolved in co-ordinating solvents