Source:http://linkedlifedata.com/resource/pubmed/id/21243683
Switch to
| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
4
|
| pubmed:dateCreated |
2011-1-18
|
| pubmed:abstractText |
Square-planar bis(?-fluorophenylacetylide) platinum(II) complexes [Pt(Me(3)SiC?CbpyC?C-SiMe(3))(C?CC(6)H(4)F)(2)] (C?CC(6)H(4)F-2 for 2, C?CC(6)H(4)F-3 for 3, and C?CC(6)H(4)F-4 for 4; Me(3)SiC?CbpyC?CSiMe(3)=5,5'-bis(trimethylsilylethynyl)-2,2'-bipyridine) were prepared and were characterized by spectroscopic and luminescence studies, and X-ray crystallography. The color and luminescence of crystalline complex 3 is specifically sensitive to CHCl(3) vapor to afford 140-180 nm of luminescence vapochromic redshift, which is useful for specific detection of CHCl(3) vapor. Complex 4 displays selective luminescence vapochromic properties to CH(2)Cl(2) and CHCl(3) vapors with a luminescence vapochromic shift response of ca. 150-200 nm. Interestingly, complexes 2-4 exhibit reversible, and naked-eye perceivable, mechanical stimuli-responsive color and luminescence changes. When solid species 2-4 are crushed gently or ground, the crystalline state is converted to an amorphous phase. Meanwhile, bright yellow-orange luminescence in the crystalline species is converted to dark red under UV light irradiation with 100-160 nm of mechanochromic shift response. A vapochromic or mechanochromic cycle was monitored by dynamic variations in emission spectra and X-ray diffraction (XRD) patterns. The halohydrocarbon vapor- or mechanical-grinding-triggered color and luminescence switches are most likely correlated to a shorted intermolecular Pt-Pt distance as that revealed in vapochromic species 4·0.5 CH(2)Cl(2) by X-ray crystallography, thus leading to an increased contribution from intermolecular Pt-Pt interaction as demonstrated by DTF computational studies.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
|
| pubmed:month |
Jan
|
| pubmed:issn |
1521-3765
|
| pubmed:author | |
| pubmed:copyrightInfo |
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
|
| pubmed:issnType |
Electronic
|
| pubmed:day |
24
|
| pubmed:volume |
17
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
1171-83
|
| pubmed:year |
2011
|
| pubmed:articleTitle |
Vapor- and mechanical-grinding-triggered color and luminescence switches for bis(?-fluorophenylacetylide) platinum(II) complexes.
|
| pubmed:affiliation |
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, China.
|
| pubmed:publicationType |
Journal Article
|