113705-12-7Relevant articles and documents
Activating Chalcogen Bonding (ChB) in Alkylseleno/Alkyltelluroacetylenes toward Chalcogen Bonding Directionality Control
Aubert, Emmanuel,Dhaka, Arun,Espinosa, Enrique,Fourmigué, Marc,Jeannin, Olivier,Jeon, Ie-Rang
, p. 23583 - 23587 (2020)
Activation of a deep electron-deficient area on chalcogen atoms (Ch=Se, Te) is demonstrated in alkynyl chalcogen derivatives, in the prolongation of the (C≡)C?Ch bond. The solid-state structures of 1,4-bis(methylselenoethynyl)perfluorobenzene (1Se) show the formation of recurrent chalcogen-bonded (ChB) motifs. Association of 1Se and the tellurium analogue 1Te with 4,4′-bipyridine and with the stronger Lewis base 1,4-di(4-pyridyl)piperazine gives 1:1 co-crystals with 1D extended structures linked by short and directional ChB interactions, comparable to those observed with the corresponding halogen bond (XB) donor, 1,4-bis(iodoethynyl)-perfluorobenzene. This “alkynyl” approach for chalcogen activation provides the crystal-engineering community with efficient, and neutral ChB donors for the elaboration of supramolecular 1D (and potentially 2D or 3D) architectures, with a degree of strength and predictability comparable to that of halogen bonding in iodoacetylene derivatives.
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/
