530087-29-7Relevant academic research and scientific papers
Synthesis and optical characterisation of platinum(II) poly-yne polymers incorporating substituted 1,4-diethynylbenzene derivatives and an investigation of the intermolecular interactions in the diethynylbenzene molecular precursors
Khan, Muhammad S.,Al-Mandhary, Muna R. A.,Al-Suti, Mohammed K.,Corcoran, Timothy C.,Al-Mahrooqi, Yaqoub,Attfield, J. Paul,Feeder, Neil,David, William I. F.,Shankland, Kenneth,Friend, Richard H.,Koehler, Anna,Marseglia, Elisabeth A.,Tedesco, Emilio,Tang, Chiu C.,Raithby, Paul R.,Collings, Jonathan C.,Roscoe, Karl P.,Batsanov, Andrei S.,Stimson, Lorna M.,Marder, Todd B.
, p. 140 - 149 (2007/10/03)
A series of 1,4-diethynylbenzene (1) derivatives, H-C≡C-R-C≡C-H with R = C6H3NH2 (2), C6H3F (3), C6H2F2-2,5 (4), C6F4 (5), C6H2/
Preparation of models and oligomers of metal alkynyls NMR, GPC and X-ray structural characterization of building blocks for the construction of molecular devices
La Groia, Alessandra,Ricci, Antonella,Bassetti, Mauro,Masi, Dante,Bianchini, Claudio,Lo Sterzo, Claudio
, p. 406 - 420 (2007/10/03)
A systematic study has been carried out for the use of the palladium-based Extended One Pot (EOP) synthetic protocol toward the preparation of metal alkynyl oligomers of general formula [- C≡C-Ar-C≡C-M(L)m -]n (M=Pt, Pd). Model compounds of type trans-M(PBu 3)2(C≡CC6H5) 2 have been prepared by the reaction of tributyltinethynylbenzene with trans-M(PBu3)2 Cl2, in the absence of palladium catalysis, since the presence of catalytic Pd(PPh3)4 yields reaction mixtures containing starting material, product and intermediate complex trans-MCl (PBu3)2(C≡CC6H5). Palladium catalysis has been used for the formation of the bistinacetylide compounds Bu3Sn-C≡C- Ar-C≡C-SnBu3 (Ar=C6 H4; bis(2,5-n-octyloxy)C6H4). Subsequent coupling of these compounds with MCl2(PBu3) 2 in the absence of palladium catalyst yields metal alkynyl oligomers. Comparison of 31P-NMR and gel permeation chromatography (GPC) analyses indicates that the GPC technique represents a reliable method to estimate polymer chain lengths for polymers bearing branched aromatic spacers, in spite of the rigid-rod shape of the polymer backbone. Single crystal X-ray determinations of model compounds demonstrate the essential role of side substituents in the aromatic ring to control the supramolecular order and, as a consequence, the optoelectronic properties of materials.
