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Volumn 127, Issue 35, 2005, Pages 12351-12356

Reversible colorimetric probes for mercury sensing

Author keywords

[No Author keywords available]

Indexed keywords

CADMIUM; CHEMICAL SENSORS; COLORIMETRY; COMPLEXATION; COORDINATION REACTIONS; DYES; LEAD; MESOPOROUS MATERIALS; RUTHENIUM COMPOUNDS;

EID: 24644463673     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja0517724     Document Type: Article
Times cited : (319)

References (65)
  • 44
    • 24644505534 scopus 로고    scopus 로고
    • For an update on water contaminants see www.epa.gov/safewater/hfacts. html.
  • 46
    • 24644470277 scopus 로고    scopus 로고
    • note
    • CCDC-259514 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge via www.ccdc.cam.ac.uk/conts/ retrieving.html (or from the Cambridge Crystallographic Data Centre, 12 Union Rd., Cambridge CB2 1EZ, U.K.; fax +44-1223-336-033; e-mail deposit@ccdc.cam.ac. uk).
  • 57
    • 24644450916 scopus 로고    scopus 로고
    • note
    • In principle, two possible structural features can be the origin for the crystallographic disorder found for the Hg centers. The structure can be formed by one-dimensional chains following a - S1 - Hg1 - S1 - Hg1 - core, as we propose, with each Hg completing its tetrahedral coordination with S2 and C11. This leaves one noncoordinated S2 atom, which binds the second Hg2 atom, in linear coordination with C11. From such a chain, where all the tetrahedral Hg centers are aligned, the crystallographic disorder would come from the random distribution of the chains in the overall packing, since no given order should exist about how the metal centers are distributed. The other possibility would include a random distribution of the Hg centers in a given chain, which would also result in the same crystallographic disorder, but in such a case, a chain would not exist, since with a random zigzag distribution of the Hg1 centers only short oligomers would occur, with the shortest one including four Hg atoms. Although this is possible, it is difficult to justify such a random distribution along the chain, which would imply the presence of oligomers of different lengths in the same crystal. Although crystallographically equivalent, such a chemical composition would probably not give rise to this crystal packing. Indeed, no interactions are observed in the crystal structure that would favor its formation. Thus, only the presence of the infinite - S1 - Hg1 - S1 - Hg1 - chain allows us to understand the crystal structure found.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.