149743 20251017144546.0 doi 10.1021/cm401849f sideral 84140 ART-2013-84140 eng González, L. Universidad de Zaragoza (orcid)0000-0002-7486-8502 Halogen-bonding complexes based on bis(iodoethynyl)benzene units: A new versatile route to supramolecular materials 2013 Access copy available to the general public Unrestricted Iodoalkynes [1,4-bis(iodoethynyl)benzene (p-BIB) and 1,3-bis(iodoethynyl)benzene (m-BIB)] have been used successfully to prepare halogen bonding complexes with a range of 4-pyridine derivatives showing liquid crystalline organizations. The trimeric halogen-bonded complexes obtained from p-BIB have a rod-like structure and exhibited high order calamitic phases (SmB and G). In contrast, m-BIB gives rise to bent-shaped structures that display SmAP-like mesophases. Furthermore it was found that the presence of three and five aromatic rings in these halogen-bonding complexes promotes calamitic mesophases while seven rings are required to stabilize bent-core mesophases. The formation of halogen bonding in the complexes was confirmed by several techniques, including FT-IR, XPS, and single crystal X-ray diffraction and the strength of the bonds was evaluated by DFT calculations info:eu-repo/grantAgreement/ES/DGA/E04 info:eu-repo/grantAgreement/ES/MICINN/CTQ2012-35692 info:eu-repo/grantAgreement/ES/MICINN/MAT2009-14636-C03-01 info:eu-repo/grantAgreement/ES/MICINN/MAT2011-27978-C02-01 info:eu-repo/grantAgreement/ES/MICINN/MAT2012-38538-C03-01 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 8.535 2013 MATERIALS SCIENCE, MULTIDISCIPLINARY 16 / 246 = 0.065 2013 Q1 T1 CHEMISTRY, PHYSICAL 13 / 134 = 0.097 2013 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Gimeno, N. Universidad de Zaragoza Tejedor, R.M. Universidad de Zaragoza (orcid)0000-0003-1141-5933 Polo, V. Universidad de Zaragoza (orcid)0000-0001-5823-7965 Ros, M.B. Universidad de Zaragoza (orcid)0000-0003-4416-1036 Uriel, S. Universidad de Zaragoza (orcid)0000-0001-7636-9187 Serrano, J.L. Universidad de Zaragoza (orcid)0000-0001-9866-6633 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 2012 755 Universidad de Zaragoza Dpto. Química Física Área Química Física 25, 22 (2013), 4503-4510 Chem. mater. Chemistry of materials 0897-4756 1000486 http://zaguan.unizar.es/record/149743/files/texto_completo.pdf Postprint 2787008 http://zaguan.unizar.es/record/149743/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:149743 articulos driver 2025-10-17-14:10:03 ARTICLE