{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T18:18:25Z","timestamp":1790014705109,"version":"4.0.1"},"reference-count":69,"publisher":"Wiley","issue":"65","license":[{"start":{"date-parts":[[2019,10,28]],"date-time":"2019-10-28T00:00:00Z","timestamp":1572220800000},"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":["Chemistry A European J"],"published-print":{"date-parts":[[2019,11,22]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Regioisomeric acceptor\u2010donor (AD) molecular rotors (\n                    <jats:italic>\n                      <jats:bold>p<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010AD<\/jats:bold>\n                    ,\n                    <jats:italic>\n                      <jats:bold>m<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010AD<\/jats:bold>\n                    and\n                    <jats:italic>\n                      <jats:bold>m<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010ADA<\/jats:bold>\n                    ) were synthesized and characterized, wherein dyads\n                    <jats:italic>\n                      <jats:bold>p<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010AD<\/jats:bold>\n                    and\n                    <jats:italic>\n                      <jats:bold>m<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010AD<\/jats:bold>\n                    , and triad\n                    <jats:italic>\n                      <jats:bold>m<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010ADA<\/jats:bold>\n                    contained 4,4\u2010difluoro\u20104\u2010bora\u20103a,4a\u2010diaza\u2010s\u2010indacene (BODIPY) and benzodithiophene (BDT) as electron\u2010acceptor and electron\u2010donor, respectively. In all the compounds, the donor and acceptor moieties are electronically decoupled by a phenyl spacer, either through a\n                    <jats:italic>para<\/jats:italic>\n                    coupling or through a\n                    <jats:italic>meta<\/jats:italic>\n                    coupling. The dyad counterparts\n                    <jats:italic>\n                      <jats:bold>p<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010AD<\/jats:bold>\n                    and\n                    <jats:italic>\n                      <jats:bold>m<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010AD<\/jats:bold>\n                    showed distinct photophysical characteristics in which dyad\n                    <jats:italic>\n                      <jats:bold>p<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010AD<\/jats:bold>\n                    showed TICT band at ca. 654\u2005nm characterized by a Stokes shift of ca. 150\u2005nm and prominent solvatochromism. However,\n                    <jats:italic>meta<\/jats:italic>\n                    regioisomeric triad\n                    <jats:italic>\n                      <jats:bold>m<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010ADA<\/jats:bold>\n                    showed well\u2010defined aggregation in solution. Notably, because of the temperature\u2010tunable and solvent\u2010viscosity\u2010dependent emission, efficient ratiometric temperature sensing with positive and negative temperature coefficients and viscosity sensing was observed for all compounds. Interestingly, the fluorescence of dyad\n                    <jats:italic>m<\/jats:italic>\n                    \u2010AD (in 10\/90 v\/v THF\/water) revealed a near\u2010white light emission with CIE chromaticity coordinates (\n                    <jats:italic>x<\/jats:italic>\n                    ,\n                    <jats:italic>y<\/jats:italic>\n                    ) of (0.32, 0.29). Furthermore, the fluorescence emission of\n                    <jats:italic>\n                      <jats:bold>p<\/jats:bold>\n                    <\/jats:italic>\n                    <jats:bold>\u2010AD<\/jats:bold>\n                    in THF at 0\u2009\u00b0C also showed a near\u2010white light emission with chromaticity coordinates (\n                    <jats:italic>x<\/jats:italic>\n                    ,\n                    <jats:italic>y<\/jats:italic>\n                    ) of (0.34, 0.27). Such multifunctional rotors with readily tunable emission in the red region and prominent temperature\u2010 and viscosity\u2010sensing abilities are promising for sensing and bioimaging applications.\n                  <\/jats:p>","DOI":"10.1002\/chem.201902952","type":"journal-article","created":{"date-parts":[[2019,9,3]],"date-time":"2019-09-03T11:42:07Z","timestamp":1567510927000},"page":"14870-14880","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":38,"title":["Regioisomeric BODIPY Benzodithiophene Dyads and Triads with Tunable Red Emission as Ratiometric Temperature and Viscosity Sensors"],"prefix":"10.1002","volume":"25","author":[{"given":"P. R.","family":"Aswathy","sequence":"first","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science, Education and Research (IISER) Mohali  Punjab 140306 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sushil","family":"Sharma","sequence":"additional","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science, Education and Research (IISER) Mohali  Punjab 140306 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Narendra Pratap","family":"Tripathi","sequence":"additional","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science, Education and Research (IISER) Mohali  Punjab 140306 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8187-3396","authenticated-orcid":false,"given":"Sanchita","family":"Sengupta","sequence":"additional","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science, 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