Structure and emission studies of dimorphic crystals of [PtBr2(5,5'-bis(CF3CH2OCH2)-2,2'-bpy)] (1)
The yellow (1y) and orange (1o) crystalline polymorphs of [PtBr2(5,5'-bis(CF3CH2OCH2)-2,2'-bipyridine)] exhibit surprisingly short nearest neighbour Pt···Pt separations of 3.526 Å and 3.590 Å, respectively, at 295 K. Both distances are much shorter than those found in structures of the uns...
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| Veröffentlicht in: | Dalton transactions : an international journal of inorganic chemistry 2014-02, Vol.43 (5), p.2112-2119 |
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| container_title | Dalton transactions : an international journal of inorganic chemistry |
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| creator | Lu, Norman Hight, Lauren M McMillin, David R Jhuo, Jyun-Wei Chung, Wei-Cheng Lin, Kwan-Yu Wen, Yuh-Sheng Liu, Ling-Kang |
| description | The yellow (1y) and orange (1o) crystalline polymorphs of [PtBr2(5,5'-bis(CF3CH2OCH2)-2,2'-bipyridine)] exhibit surprisingly short nearest neighbour Pt···Pt separations of 3.526 Å and 3.590 Å, respectively, at 295 K. Both distances are much shorter than those found in structures of the unsubstituted [PtBr2(2,2'-bipyridine)] analogue. Consistent with a linear chain structure in 1o and dimer formation in 1y, both solids exhibit emission spectra shifted to much longer wavelengths than that exhibited by the monomer in a low-temperature glass. Furthermore, the emission spectra of 1o and 1y shift to even longer wavelengths as the temperature decreases and the Pt···Pt separations contract. Till now delocalized emission of this type has been considered to be restricted to [PtCl2(diimine)] systems and implausible in PtBr2-containing analogues for steric reasons. Ironically, in the system at hand the bulky 5,5'-substituents apparently promote delocalization of the emission by forming a network of hydrogen-bonding-like C-H···F-C interactions that help shape the packing. |
| doi_str_mv | 10.1039/c3dt52713a |
| format | Article |
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Both distances are much shorter than those found in structures of the unsubstituted [PtBr2(2,2'-bipyridine)] analogue. Consistent with a linear chain structure in 1o and dimer formation in 1y, both solids exhibit emission spectra shifted to much longer wavelengths than that exhibited by the monomer in a low-temperature glass. Furthermore, the emission spectra of 1o and 1y shift to even longer wavelengths as the temperature decreases and the Pt···Pt separations contract. Till now delocalized emission of this type has been considered to be restricted to [PtCl2(diimine)] systems and implausible in PtBr2-containing analogues for steric reasons. Ironically, in the system at hand the bulky 5,5'-substituents apparently promote delocalization of the emission by forming a network of hydrogen-bonding-like C-H···F-C interactions that help shape the packing.</description><identifier>ISSN: 1477-9226</identifier><identifier>EISSN: 1477-9234</identifier><identifier>DOI: 10.1039/c3dt52713a</identifier><identifier>PMID: 24281349</identifier><language>eng</language><publisher>England</publisher><subject>Contracts ; Crystal structure ; Dimers ; Emission ; Emission spectra ; Monomers ; Separation ; Wavelengths</subject><ispartof>Dalton transactions : an international journal of inorganic chemistry, 2014-02, Vol.43 (5), p.2112-2119</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c419t-bfad1ca0e92c8f369f5a8436943ac70e3728477658c3e57e90f92970951f742f3</citedby><cites>FETCH-LOGICAL-c419t-bfad1ca0e92c8f369f5a8436943ac70e3728477658c3e57e90f92970951f742f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24281349$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lu, Norman</creatorcontrib><creatorcontrib>Hight, Lauren M</creatorcontrib><creatorcontrib>McMillin, David R</creatorcontrib><creatorcontrib>Jhuo, Jyun-Wei</creatorcontrib><creatorcontrib>Chung, Wei-Cheng</creatorcontrib><creatorcontrib>Lin, Kwan-Yu</creatorcontrib><creatorcontrib>Wen, Yuh-Sheng</creatorcontrib><creatorcontrib>Liu, Ling-Kang</creatorcontrib><title>Structure and emission studies of dimorphic crystals of [PtBr2(5,5'-bis(CF3CH2OCH2)-2,2'-bpy)] (1)</title><title>Dalton transactions : an international journal of inorganic chemistry</title><addtitle>Dalton Trans</addtitle><description>The yellow (1y) and orange (1o) crystalline polymorphs of [PtBr2(5,5'-bis(CF3CH2OCH2)-2,2'-bipyridine)] exhibit surprisingly short nearest neighbour Pt···Pt separations of 3.526 Å and 3.590 Å, respectively, at 295 K. Both distances are much shorter than those found in structures of the unsubstituted [PtBr2(2,2'-bipyridine)] analogue. Consistent with a linear chain structure in 1o and dimer formation in 1y, both solids exhibit emission spectra shifted to much longer wavelengths than that exhibited by the monomer in a low-temperature glass. Furthermore, the emission spectra of 1o and 1y shift to even longer wavelengths as the temperature decreases and the Pt···Pt separations contract. Till now delocalized emission of this type has been considered to be restricted to [PtCl2(diimine)] systems and implausible in PtBr2-containing analogues for steric reasons. Ironically, in the system at hand the bulky 5,5'-substituents apparently promote delocalization of the emission by forming a network of hydrogen-bonding-like C-H···F-C interactions that help shape the packing.</description><subject>Contracts</subject><subject>Crystal structure</subject><subject>Dimers</subject><subject>Emission</subject><subject>Emission spectra</subject><subject>Monomers</subject><subject>Separation</subject><subject>Wavelengths</subject><issn>1477-9226</issn><issn>1477-9234</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkU9LAzEQxYMotlYvfgDZm1vpajJJms2xrtYKhQrWk8iSZhNcabs12T3025v-sVc9DDMMv3mP4SF0SfAtwVTeaVrUHASh6gi1CRMikUDZ8WGGfgudef-FMQDmcIpawCAllMk2mr3WrtF140yklkVkFqX3ZbWMfN0UpfFRZaOiXFRu9VnqSLu1r9V8u31_qe8dxLzHr5NZ6eNsSLMRTEJ1E-hBWK7W3Y8oJt1zdGLDkbnY9w56Gz5Os1Eynjw9Z4NxohmRdTKzqiBaYSNBp5b2peUqZaEzqrTAhgpIwz99nmpquDASWwlSYMmJFQws7aB4p7ty1XdjfJ2HZ7SZz9XSVI3PiaA40MDhb5QFV0KD139QLBjvy43qzQ7VrvLeGZuvXLlQbp0TnG-SyjP6MN0mNQjw1V63mS1McUB_o6E_jVOIgg</recordid><startdate>20140207</startdate><enddate>20140207</enddate><creator>Lu, Norman</creator><creator>Hight, Lauren M</creator><creator>McMillin, David R</creator><creator>Jhuo, Jyun-Wei</creator><creator>Chung, Wei-Cheng</creator><creator>Lin, Kwan-Yu</creator><creator>Wen, Yuh-Sheng</creator><creator>Liu, Ling-Kang</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>7SR</scope><scope>8BQ</scope><scope>JG9</scope></search><sort><creationdate>20140207</creationdate><title>Structure and emission studies of dimorphic crystals of [PtBr2(5,5'-bis(CF3CH2OCH2)-2,2'-bpy)] (1)</title><author>Lu, Norman ; Hight, Lauren M ; McMillin, David R ; Jhuo, Jyun-Wei ; Chung, Wei-Cheng ; Lin, Kwan-Yu ; Wen, Yuh-Sheng ; Liu, Ling-Kang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c419t-bfad1ca0e92c8f369f5a8436943ac70e3728477658c3e57e90f92970951f742f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Contracts</topic><topic>Crystal structure</topic><topic>Dimers</topic><topic>Emission</topic><topic>Emission spectra</topic><topic>Monomers</topic><topic>Separation</topic><topic>Wavelengths</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lu, Norman</creatorcontrib><creatorcontrib>Hight, Lauren M</creatorcontrib><creatorcontrib>McMillin, David R</creatorcontrib><creatorcontrib>Jhuo, Jyun-Wei</creatorcontrib><creatorcontrib>Chung, Wei-Cheng</creatorcontrib><creatorcontrib>Lin, Kwan-Yu</creatorcontrib><creatorcontrib>Wen, Yuh-Sheng</creatorcontrib><creatorcontrib>Liu, Ling-Kang</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Materials Research Database</collection><jtitle>Dalton transactions : an international journal of inorganic chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lu, Norman</au><au>Hight, Lauren M</au><au>McMillin, David R</au><au>Jhuo, Jyun-Wei</au><au>Chung, Wei-Cheng</au><au>Lin, Kwan-Yu</au><au>Wen, Yuh-Sheng</au><au>Liu, Ling-Kang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Structure and emission studies of dimorphic crystals of [PtBr2(5,5'-bis(CF3CH2OCH2)-2,2'-bpy)] (1)</atitle><jtitle>Dalton transactions : an international journal of inorganic chemistry</jtitle><addtitle>Dalton Trans</addtitle><date>2014-02-07</date><risdate>2014</risdate><volume>43</volume><issue>5</issue><spage>2112</spage><epage>2119</epage><pages>2112-2119</pages><issn>1477-9226</issn><eissn>1477-9234</eissn><abstract>The yellow (1y) and orange (1o) crystalline polymorphs of [PtBr2(5,5'-bis(CF3CH2OCH2)-2,2'-bipyridine)] exhibit surprisingly short nearest neighbour Pt···Pt separations of 3.526 Å and 3.590 Å, respectively, at 295 K. Both distances are much shorter than those found in structures of the unsubstituted [PtBr2(2,2'-bipyridine)] analogue. Consistent with a linear chain structure in 1o and dimer formation in 1y, both solids exhibit emission spectra shifted to much longer wavelengths than that exhibited by the monomer in a low-temperature glass. Furthermore, the emission spectra of 1o and 1y shift to even longer wavelengths as the temperature decreases and the Pt···Pt separations contract. Till now delocalized emission of this type has been considered to be restricted to [PtCl2(diimine)] systems and implausible in PtBr2-containing analogues for steric reasons. Ironically, in the system at hand the bulky 5,5'-substituents apparently promote delocalization of the emission by forming a network of hydrogen-bonding-like C-H···F-C interactions that help shape the packing.</abstract><cop>England</cop><pmid>24281349</pmid><doi>10.1039/c3dt52713a</doi><tpages>8</tpages></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Contracts Crystal structure Dimers Emission Emission spectra Monomers Separation Wavelengths |
| title | Structure and emission studies of dimorphic crystals of [PtBr2(5,5'-bis(CF3CH2OCH2)-2,2'-bpy)] (1) |
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