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Volumn , Issue 12, 2003, Pages 2348-2351

Photophysical and energy-transfer properties of (salen)zinc complexes and supramolecular assemblies

Author keywords

Fluorescence; Host guest systems; Salen ligands; Supramolecular chemistry

Indexed keywords

COORDINATION REACTIONS; SUPRAMOLECULAR CHEMISTRY; ZINC COMPOUNDS;

EID: 0037929047     PISSN: 14341948     EISSN: None     Source Type: Journal    
DOI: 10.1002/ejic.200200665     Document Type: Article
Times cited : (105)

References (26)
  • 1
    • 85163249261 scopus 로고    scopus 로고
    • note
    • For the remainder of this article, the term salen will be used to describe the general class of bis(salicylamide) ligands and complexes.
  • 3
    • 85163248330 scopus 로고
    • Eds. E. W. Abel, F. G. A. Stone, and E. Willinson
    • [2b] E. N. Jacobsen, in Comprehensive Organometallic Chemistry II (Eds. E. W. Abel, F. G. A. Stone, and E. Willinson), Pergamon, New York, 1995, vol. 12, pp. 1907-1135.
    • (1995) Comprehensive Organometallic Chemistry II , vol.12 , pp. 1907-1135
    • Jacobsen, E.N.1
  • 7
    • 85163243745 scopus 로고    scopus 로고
    • PhD Thesis, Department of Chemistry, Northwestern University
    • [3b] G. A. Morris, PhD Thesis, Department of Chemistry, Northwestern University, 2001.
    • (2001)
    • Morris, G.A.1
  • 17
    • 0037010976 scopus 로고    scopus 로고
    • The identity of the supramolecular complexes 3 and 4 has been confirmed by combustion analysis and mass spectroscopic data. Combustion analysis establishes an Re/ligand ratio of 1:1, disproving the presence of metal or ligand terminated oligomers. Predominant peaks in the mass spectroscopic data correspond to tetramers, while peaks of higher and lower weight species are not observed. Additionally, square 3 has been characterized by pulsed-field gradient NMR spectroscopy (PFG NMR), a technique recently employed to establish the identity of supramolecular squares (vs. ligands and oligomers) by determining the diffusion coeffiecent of the species present: W. H. Otto, M. H. Keefe, K. E. Splan, J. T. Hupp, C. K. Larive, Inorg. Chem. 2002, 41, 6172-6174.
    • (2002) Inorg. Chem. , vol.41 , pp. 6172-6174
    • Otto, W.H.1    Keefe, M.H.2    Splan, K.E.3    Hupp, J.T.4    Larive, C.K.5
  • 21
    • 85163247042 scopus 로고    scopus 로고
    • note
    • I, but also show diminished quantum yields and lifetimes relative to their respective monomers. [6c,7c]
  • 23
    • 85163249008 scopus 로고    scopus 로고
    • note
    • Unfortunately, the low solubility of the assembly (< 10 μM) precluded corroborative characterization by NMR spectroscopy.
  • 24
    • 85163249002 scopus 로고    scopus 로고
    • note
    • Control experiments using large excesses of pyridine or 4-phenylpyridine in place of 2 had no effect upon the emission yield of the square.
  • 25
    • 85163249123 scopus 로고    scopus 로고
    • note
    • Replacement of 2 by a 5,15-bis(4-ethynylpyridyl)porphyrin, for which no spectral overlap with 4 is observed, yielded no detectable guest-to-host energy transfer.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.