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Design, crystal structures and enhanced frequency-upconverted lasing efficiencies of a new series of dyes from hybrid of inorganic polymers and organic chromophores
Department of Chemistry, Anhui University, China.
Department of Chemistry, Anhui University, China.
Department of Chemistry, Anhui University, China.
Department of Chemistry, Anhui University, China.
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2009 (Engelska)Ingår i: Journal of Materials Chemistry, ISSN 0959-9428, E-ISSN 1364-5501, Vol. 19, nr 48, s. 9163-9169Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A new series of hybrid dyes, trans-4-(4′-N,N-dialkylaminostyryl)-N-methyl pyridinium [Cd(SCN)3]n [alkyl = Me(1), Et(2), Pr(3) and n–Bu(4)] have been successfully synthesized from hybrids of inorganic polymers and organic chromophores. The structures of four new hybrid dyes were characterized by single-crystal X-ray diffraction first. The particular features of the hybrid dyes are (1) the inorganic anions form isolated polymeric one-dimensional zig-zag chains of [Cd(SCN)3]n with an extended π-conjugation system within the polymeric –[M–S–C≡N]–M… chain and high polarizabilities; and (2) the organic cationic chromophores determine their optical properties. Experimental results revealed that the TPA cross-section values and overall energy conversion efficiencies of hybrid dyes with different alkyl pendant groups have obviously increased from 1 to 4, and in particular, have been substantially enhanced compared to their corresponding iodide analogues 1′4′. Therefore, we speculate that such increases are attributable to arrangements of infinite anionic [Cd(SCN)3]n chains and synergic effects with chromophore cations.

Ort, förlag, år, upplaga, sidor
RSC Publishing, 2009. Vol. 19, nr 48, s. 9163-9169
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Naturvetenskap
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URN: urn:nbn:se:liu:diva-90599DOI: 10.1039/b914656cOAI: oai:DiVA.org:liu-90599DiVA, id: diva2:613846
Tillgänglig från: 2013-04-02 Skapad: 2013-04-02 Senast uppdaterad: 2017-12-06

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