Synthesis and Solid-State, Solution, and Luminescence Properties of Near-Infrared-Emitting Neodymium(3+) Complexes Formed with Ligands Derived from Salophen
A series of free ligands, H2L1, H2L2, H2L3, and H2L4, designed for the coordination and sensitization of near‐infrared(NIR)‐emitting Nd3+ were synthesized by modifying the salophen Schiff base with different numbers and locations of Br‐substituents. The nature of the Nd3+ complexes in solution was d...
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Veröffentlicht in: | Helvetica chimica acta 2009-11, Vol.92 (11), p.2313-2329 |
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creator | Uh, Hyounsoo Badger, Paul D. Geib, Steven J. Petoud, Stéphane |
description | A series of free ligands, H2L1, H2L2, H2L3, and H2L4, designed for the coordination and sensitization of near‐infrared(NIR)‐emitting Nd3+ were synthesized by modifying the salophen Schiff base with different numbers and locations of Br‐substituents. The nature of the Nd3+ complexes in solution was determined to be [ML2]− by spectrophotometric titrations as an indication that the different substituents do not affect significantly the nature of the formed species. The structures were determined in the solid phase from X‐ray diffraction experiments. The stoichiometries and structures in the solid state are different from those observed in solution. We established that the structures in the solid state can be partially controlled by the crystallization conditions. The ligands L1–L4 have the ability to sensitize Nd3+ through intramolecular energy transfer from the ligand to the metal ion. We quantified that the numbers and locations of Br‐substituents control the emitted luminescence intensity of the complex by the heavy‐atom effect. |
doi_str_mv | 10.1002/hlca.200900162 |
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The nature of the Nd3+ complexes in solution was determined to be [ML2]− by spectrophotometric titrations as an indication that the different substituents do not affect significantly the nature of the formed species. The structures were determined in the solid phase from X‐ray diffraction experiments. The stoichiometries and structures in the solid state are different from those observed in solution. We established that the structures in the solid state can be partially controlled by the crystallization conditions. The ligands L1–L4 have the ability to sensitize Nd3+ through intramolecular energy transfer from the ligand to the metal ion. We quantified that the numbers and locations of Br‐substituents control the emitted luminescence intensity of the complex by the heavy‐atom effect.</description><identifier>ISSN: 0018-019X</identifier><identifier>EISSN: 1522-2675</identifier><identifier>DOI: 10.1002/hlca.200900162</identifier><language>eng</language><publisher>Zürich: WILEY-VCH Verlag</publisher><subject>Lanthanide complexes ; Luminescence ; Neodymium complexes ; Salophen ; X-Ray crystallography</subject><ispartof>Helvetica chimica acta, 2009-11, Vol.92 (11), p.2313-2329</ispartof><rights>Copyright © 2009 Verlag Helvetica Chimica Acta AG, Zürich, Switzerland</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4012-845a840af7081e24591fc840a8c20abb2c94f69659591586c981c2241bcbe053</citedby><cites>FETCH-LOGICAL-c4012-845a840af7081e24591fc840a8c20abb2c94f69659591586c981c2241bcbe053</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fhlca.200900162$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fhlca.200900162$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,780,784,885,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://hal.science/hal-00525363$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Uh, Hyounsoo</creatorcontrib><creatorcontrib>Badger, Paul D.</creatorcontrib><creatorcontrib>Geib, Steven J.</creatorcontrib><creatorcontrib>Petoud, Stéphane</creatorcontrib><title>Synthesis and Solid-State, Solution, and Luminescence Properties of Near-Infrared-Emitting Neodymium(3+) Complexes Formed with Ligands Derived from Salophen</title><title>Helvetica chimica acta</title><addtitle>HCA</addtitle><description>A series of free ligands, H2L1, H2L2, H2L3, and H2L4, designed for the coordination and sensitization of near‐infrared(NIR)‐emitting Nd3+ were synthesized by modifying the salophen Schiff base with different numbers and locations of Br‐substituents. The nature of the Nd3+ complexes in solution was determined to be [ML2]− by spectrophotometric titrations as an indication that the different substituents do not affect significantly the nature of the formed species. The structures were determined in the solid phase from X‐ray diffraction experiments. The stoichiometries and structures in the solid state are different from those observed in solution. We established that the structures in the solid state can be partially controlled by the crystallization conditions. The ligands L1–L4 have the ability to sensitize Nd3+ through intramolecular energy transfer from the ligand to the metal ion. We quantified that the numbers and locations of Br‐substituents control the emitted luminescence intensity of the complex by the heavy‐atom effect.</description><subject>Lanthanide complexes</subject><subject>Luminescence</subject><subject>Neodymium complexes</subject><subject>Salophen</subject><subject>X-Ray crystallography</subject><issn>0018-019X</issn><issn>1522-2675</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkcFu1DAQhi0EEkvhytlHKurFduIkPq5C260UFaStBOrF8jqTxpDEK9vbdt-Fh8Vh0Yobp9F8839z-RF6z-iSUco_9YPRS06ppJQV_AVaMME54UUpXqJFYhWhTH5_jd6E8IOmmKTlAv3aHKbYQ7AB66nFGzfYlmyijnAxL_to3XTx59TsRztBMDAZwF-924GPFgJ2Hb4F7cnN1HntoSWXo43RTg8Ju_Yw2v34Ift4jms37gZ4TsaV8yO0-MnGHjf2IT0P-DN4-5hg592IN3pwux6mt-hVp4cA7_7OM3R3dXlXr0nz5fqmXjXE5JRxUuVCVznVXUkrBjwXknVmBpXhVG-33Mi8K2QhZLqIqjCyYobznG3NFqjIztD58W2vB7XzdtT-oJy2ar1q1MwoFVxkRfbIUnZ5zBrvQvDQnQRG1VyDmmtQpxqSII_Ckx3g8J-0Wjf16l-XHF0bIjyfXO1_qqLMSqG-3V6rJr-v75uyVOvsN6Uom8g</recordid><startdate>200911</startdate><enddate>200911</enddate><creator>Uh, Hyounsoo</creator><creator>Badger, Paul D.</creator><creator>Geib, Steven J.</creator><creator>Petoud, Stéphane</creator><general>WILEY-VCH Verlag</general><general>WILEY‐VCH Verlag</general><general>Wiley</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope></search><sort><creationdate>200911</creationdate><title>Synthesis and Solid-State, Solution, and Luminescence Properties of Near-Infrared-Emitting Neodymium(3+) Complexes Formed with Ligands Derived from Salophen</title><author>Uh, Hyounsoo ; Badger, Paul D. ; Geib, Steven J. ; Petoud, Stéphane</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4012-845a840af7081e24591fc840a8c20abb2c94f69659591586c981c2241bcbe053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Lanthanide complexes</topic><topic>Luminescence</topic><topic>Neodymium complexes</topic><topic>Salophen</topic><topic>X-Ray crystallography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Uh, Hyounsoo</creatorcontrib><creatorcontrib>Badger, Paul D.</creatorcontrib><creatorcontrib>Geib, Steven J.</creatorcontrib><creatorcontrib>Petoud, Stéphane</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Helvetica chimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Uh, Hyounsoo</au><au>Badger, Paul D.</au><au>Geib, Steven J.</au><au>Petoud, Stéphane</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis and Solid-State, Solution, and Luminescence Properties of Near-Infrared-Emitting Neodymium(3+) Complexes Formed with Ligands Derived from Salophen</atitle><jtitle>Helvetica chimica acta</jtitle><addtitle>HCA</addtitle><date>2009-11</date><risdate>2009</risdate><volume>92</volume><issue>11</issue><spage>2313</spage><epage>2329</epage><pages>2313-2329</pages><issn>0018-019X</issn><eissn>1522-2675</eissn><abstract>A series of free ligands, H2L1, H2L2, H2L3, and H2L4, designed for the coordination and sensitization of near‐infrared(NIR)‐emitting Nd3+ were synthesized by modifying the salophen Schiff base with different numbers and locations of Br‐substituents. The nature of the Nd3+ complexes in solution was determined to be [ML2]− by spectrophotometric titrations as an indication that the different substituents do not affect significantly the nature of the formed species. The structures were determined in the solid phase from X‐ray diffraction experiments. The stoichiometries and structures in the solid state are different from those observed in solution. We established that the structures in the solid state can be partially controlled by the crystallization conditions. The ligands L1–L4 have the ability to sensitize Nd3+ through intramolecular energy transfer from the ligand to the metal ion. We quantified that the numbers and locations of Br‐substituents control the emitted luminescence intensity of the complex by the heavy‐atom effect.</abstract><cop>Zürich</cop><pub>WILEY-VCH Verlag</pub><doi>10.1002/hlca.200900162</doi><tpages>17</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Lanthanide complexes Luminescence Neodymium complexes Salophen X-Ray crystallography |
title | Synthesis and Solid-State, Solution, and Luminescence Properties of Near-Infrared-Emitting Neodymium(3+) Complexes Formed with Ligands Derived from Salophen |
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