{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,13]],"date-time":"2025-10-13T12:40:34Z","timestamp":1760359234809,"version":"build-2065373602"},"reference-count":43,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2013,10,11]],"date-time":"2013-10-11T00:00:00Z","timestamp":1381449600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemPlusChem"],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Two fluorescent molecular receptor based conjugated polymers were used in the detection of a nitroaliphatic liquid explosive (nitromethane) and an explosive taggant (2,3\u2010dimethyl\u20102,3\u2010dinitrobutane) in the vapor phase. Results have shown that thin films of both polymers display remarkably high sensitivity and selectivity toward these analytes. Very fast, reproducible, and reversible responses were found. The unique behavior of these supramolecular host systems is ascribed to cooperativity effects developed between the calix[4]arene hosts and the phenylene ethynylene\u2013carbazolylene main chains. The calix[4]arene hosts create a plethora of host\u2013guest binding sites along the polymer backbone, either in their bowl\u2010shaped cavities or between the outer walls of the cavity, to direct guests to the area of the transduction centers (main chain) at which favorable photoinduced electron transfer to the guest molecules occurs and leads to the observed fluorescence quenching. The high tridimensional porous nature of the polymers imparted by the bis\u2010calixarene moieties concomitantly allows fast diffusion of guest molecules into the polymer thin films.<\/jats:p>","DOI":"10.1002\/cplu.201300280","type":"journal-article","created":{"date-parts":[[2013,10,14]],"date-time":"2013-10-14T07:57:27Z","timestamp":1381737447000},"page":"83-89","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Cooperative Effects in the Detection of a Nitroaliphatic Liquid Explosive and an Explosive Taggant in the Vapor Phase by Calix[4]arene\u2010Based Carbazole\u2010Containing Conjugated Polymers"],"prefix":"10.1002","volume":"79","author":[{"given":"Patr\u00edcia D.","family":"Barata","sequence":"first","affiliation":[]},{"given":"Jos\u00e9 V.","family":"Prata","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2013,10,11]]},"reference":[{"key":"e_1_2_6_1_2","doi-asserted-by":"publisher","DOI":"10.1039\/C1CS15173H"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1039\/b809631g"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00216-008-2194-6"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr0501339"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1039\/b517953j"},{"key":"e_1_2_6_6_2","unstructured":"J.\u2005D. Sullivan W.\u2005B. Sunderland Liquid Explosive in Pipes U.S. Army Research Laboratory Report 1994."},{"key":"e_1_2_6_7_2","first-page":"87","volume":"9","author":"Shekhar H.","year":"2012","journal-title":"Cent. Eur. J. Energ. Mater."},{"key":"e_1_2_6_8_2","unstructured":"For a survey of the patent literature describing explosive compositions comprising NM and a sensitizer see ref.\u2005[7]."},{"key":"e_1_2_6_9_2","unstructured":"Allegedly bombings of the Murrah Federal Office Building in Oklahoma City USA 1995 and Government buildings in Oslo Norway 2011."},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1021\/ac001347n"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1039\/b505249a"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.aca.2008.01.016"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0040-6090(03)00812-5"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1088\/0022-3727\/39\/23\/030"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.micromeso.2007.05.025"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.201102013"},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1039\/c0cc01258k"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja106851d"},{"key":"e_1_2_6_19_2","doi-asserted-by":"publisher","DOI":"10.1039\/c2jm32072j"},{"first-page":"49","volume-title":"Containing the Threat from Illegal Bombings: An Integrated National Strategy for Marking, Tagging, Rendering Inert, and Licensing Explosives and Their Precursors","year":"1998","key":"e_1_2_6_20_2"},{"key":"e_1_2_6_21_2","unstructured":"Convention on the Marking of Plastic Explosives for the Purpose of Detection United Nations Council of the International Civil Aviation Organization March 1 1991; ref.\u2005[20]."},{"key":"e_1_2_6_22_2","doi-asserted-by":"publisher","DOI":"10.1039\/b508408c"},{"key":"e_1_2_6_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.snb.2008.05.001"},{"key":"e_1_2_6_24_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.200804853"},{"key":"e_1_2_6_24_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200804853"},{"key":"e_1_2_6_25_2","doi-asserted-by":"publisher","DOI":"10.1039\/c1py00222h"},{"key":"e_1_2_6_26_2","doi-asserted-by":"publisher","DOI":"10.1002\/marc.200900160"},{"key":"e_1_2_6_27_2","doi-asserted-by":"publisher","DOI":"10.1021\/ic062012c"},{"key":"e_1_2_6_28_2","doi-asserted-by":"publisher","DOI":"10.1021\/cm1020355"},{"key":"e_1_2_6_29_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.reactfunctpolym.2012.06.006"},{"key":"e_1_2_6_30_2","doi-asserted-by":"publisher","DOI":"10.1002\/pola.22957"},{"key":"e_1_2_6_31_2","first-page":"457","volume-title":"Calixarenes 2001","author":"Arduini A.","year":"2001"},{"key":"e_1_2_6_32_2","doi-asserted-by":"publisher","DOI":"10.1039\/p29960000839"},{"key":"e_1_2_6_33_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.talanta.2007.02.018"},{"key":"e_1_2_6_34_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-0-387-46312-4_8"},{"first-page":"17","volume-title":"Handbook of Chemistry and Physics, 84th\u2005ed.","year":"2004","key":"e_1_2_6_35_2"},{"key":"e_1_2_6_36_2","unstructured":"See Reference\u2005[20] p.\u200547."},{"key":"e_1_2_6_37_2","unstructured":"Spartan\u203204 Molecular Modeling Program Wavefunction Inc. Irvine CA 2005."},{"key":"e_1_2_6_38_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja982293q"},{"key":"e_1_2_6_39_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.polymer.2010.01.003"},{"key":"e_1_2_6_40_2","unstructured":"The present data aims to establish a trend in the sensitivity performance in relation to the thicknesses of the thin films and by no means should the latter be considered as optimized."},{"key":"e_1_2_6_41_2","unstructured":"Solution quenching experiments also showed that CALIX\u2010PPE\u20103 6\u2010CBZ displayed higher quenching constants than those of CALIX\u2010PPE\u20102 7\u2010CBZ (albeit low) for NM and DMNB. Under these conditions however DMNB was a more effective quencher than that of NM. For a detailed description of these data see the Supporting Information."},{"key":"e_1_2_6_42_2","unstructured":"LUMO energies calculated at the B3LYP\/6\u2010311G* level:[37]ELUMO(DMF)=+0.62\u2005eV;ELUMO(benzene)=\u22120.22\u2005eV. Dipole moments and vapor pressures (at 25\u2009\u00b0C) were taken from reference\u2005[35]: DMF:\u03bc=3.82\u2005D 3.3\u2005mm\u2009Hg; benzene:\u03bc=0\u2005D 95.25\u2005mm\u2009Hg."}],"container-title":["ChemPlusChem"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fcplu.201300280","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/cplu.201300280","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,13]],"date-time":"2025-10-13T12:14:32Z","timestamp":1760357672000},"score":1,"resource":{"primary":{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/10.1002\/cplu.201300280"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,10,11]]},"references-count":43,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2014,1]]}},"alternative-id":["10.1002\/cplu.201300280"],"URL":"https:\/\/doi.org\/10.1002\/cplu.201300280","archive":["Portico"],"relation":{},"ISSN":["2192-6506","2192-6506"],"issn-type":[{"type":"print","value":"2192-6506"},{"type":"electronic","value":"2192-6506"}],"subject":[],"published":{"date-parts":[[2013,10,11]]},"assertion":[{"value":"2013-08-01","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2013-10-11","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}