1273-18-3Relevant academic research and scientific papers
Preparation and molecular structures of some complexes containing C5 chains
Bruce, Michael I.,Skelton, Brian W.,White, Allan H.,Zaitseva, Natasha N.
, p. 398 - 405 (2003)
Complexes containing a Co3 cluster linked to SiMe3, Au(PPh3), W(CO)3Cp and Fc groups by a C5 chain have been prepared by elimination of AuBr(PR3) (R=Ph, tol) in the reactions between Cosub
Synthesis and properties of 1,1′-bis[p-(N,N-dimethylaminophenyl)- butadiynyl]ferrocene: A methodology for proton-mediated reversible conformation control of two function sites
Toyama, Takuya,Komori, Shizuka,Yoshino, Junro,Hayashi, Naoto,Higuchi, Hiroyuki
, p. 66 - 71 (2013/02/22)
An extended π-electronic conjugation system of the 1,1′-bis[p-(N, N-dimethylaminophenyl)butadiynyl]ferrocene derivative 1 has been synthesized, with our integrated cross-coupling reaction between the corresponding TMS-protected acetylenes in one-pot. Quantitative 1H NMR and UV-vis spectral studies of 1 have been performed, providing a methodology for molecular functions transformable by a proton-mediated reversible conformation control.
Some transition metal complexes derived from mono- and di-ethynyl perfluorobenzenes
Armitt, David J.,Bruce, Michael I.,Gaudio, Maryka,Zaitseva, Natasha N.,Skelton, Brian W.,White, Allan H.,Le Guennic, Boris,Halet, Jean-Franois,Fox, Mark A.,Roberts, Rachel L.,Hartl, Frantiek,Low, Paul J.
, p. 6763 - 6775 (2009/03/11)
Transition metal alkynyl complexes containing perfluoroaryl groups have been prepared directly from trimethylsilyl-protected mono- and di-ethynyl perfluoroarenes by simple desilylation/metallation reaction sequences. Reactions between Me3SiCCC6F5 and RuCl(dppe)Cp′ [Cp′ = Cp, Cp*] in the presence of KF in MeOH give the monoruthenium complexes Ru(CCC6F5)(dppe)Cp′ [Cp′ = Cp (2); Cp* (3)], which are related to the known compound Ru(CCC6F 5)(PPh3)2Cp (1). Treatment of Me 3SiCCC6F5 with Pt2(μ-dppm) 2Cl2 in the presence of NaOMe in MeOH gave the bis(alkynyl) complex Pt2(μ-dppm)2(CCC6F 5)2 (4). The Pd(0)/Cu(i)-catalysed reactions between Au(CCC6F5)(PPh3) and Mo(≡CBr)(CO) 2Tp* [Tp* = hydridotris(3.5-dimethylpyrazoyl)borate], Co3(μ3-CBr)(μ-dppm)(CO)7 or ICCFc [Fc = (η5-C5H4)FeCp] afford Mo(≡CCCC 6F5)(CO)2Tp* (5), Co3(μ 3-CCCC6F5)(μ-dppm)(CO)7 (6) and FcCCCCC6F5 (7), respectively. The diruthenium complexes 1,4-{Cp′(PP)RuCC}2C6F4 [(PP)Cp′ = (PPh3)2Cp (8); (dppe)Cp (9); (dppe)Cp* (10)] are prepared from 1,4-(Me3SiCC)2C6F4 in a manner similar to that described for the monoruthenium complexes 1-3. The non-fluorinated complexes 1,4-{Cp′(PP)RuCC}2C6H 4 [(PP)Cp′ = (PPh3)2Cp (11); (dppe)Cp (12); (dppe)Cp* (13)], prepared for comparison, are obtained from 1,4-(Me3SiCC)2C6H4. Spectro-electrochemical studies of the ruthenium aryl and arylene alkynyl complexes 2-3 and 8-13, together with DFT-based computational studies on suitable model systems, indicate that perfluorination of the aromatic ring has little effect on the electronic structures of these compounds, and that the frontier orbitals have appreciable diethynylphenylene character. Molecular structure determinations are reported for the fluoroaromatic complexes 1, 2, 3, 6 and 10.
