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The SiPcs exhibit quasi-reversible oxidation waves (\n                    <jats:italic>vs<\/jats:italic>\n                    . Fc\n                    <jats:sup>+<\/jats:sup>\n                    \/Fc) at 0.58\u20130.75\u2009V and reduction waves at \u22120.97 to \u22121.16\u2009V centered on the phthalocyanine ring with a narrow redox gap range of 1.70\u20131.75\u2009V. Strong absorbance in the near-infrared (NIR) region is observed for\n                    <jats:bold>1<\/jats:bold>\n                    \u2013\n                    <jats:bold>7<\/jats:bold>\n                    with the lowest-energy absorption maximum (Q band) varying little as a function of ester between 682 and 691\u2009nm. SiPcs\n                    <jats:bold>1<\/jats:bold>\n                    \u2013\n                    <jats:bold>7<\/jats:bold>\n                    fluorescence in the near-infrared with emission maxima at 691\u2013700\u2009nm. The photoluminescence quantum yields range from 40 to 52%. As a function of esterification, the SiPcs\n                    <jats:bold>1<\/jats:bold>\n                    \u2013\n                    <jats:bold>7<\/jats:bold>\n                    exhibit moderate-to-good solubility in chlorinated solvents, such as 1,2-dichlorobenzene and chloroform.\n                  <\/jats:p>","DOI":"10.1038\/s41598-017-12374-8","type":"journal-article","created":{"date-parts":[[2017,9,19]],"date-time":"2017-09-19T10:11:44Z","timestamp":1505815904000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Near-Infrared Fluorescence of Silicon Phthalocyanine Carboxylate Esters"],"prefix":"10.1038","volume":"7","author":[{"given":"Amlan K.","family":"Pal","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shinto","family":"Varghese","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5366-9168","authenticated-orcid":false,"given":"David B.","family":"Cordes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandra M. 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