A new highly selective fluorescent silver probe.
We have synthesized 3,3,7,7-tetra[N-ethyl-N-benzyl(acetamide)-2-oxymethyl]-5- oxanonane (EBAOO) and its terbium complex. The crystal structures of the complex were determined: [Tb(EBAOO)](2)[Tb(NO(3))(5)](3).H(2)O, Orthorhombic, a=40.722 (6) A, b=18.418 (3) A, c=20.496 (3) A. In the structure, the rare earth ion satisfies nine coordination. The geometry of the nine-coordinate polyhedron is discussed in terms of the dihedral angle and the mean plane. The luminescence of the complex is noticeably enhanced upon complexation with Ag(+), which is due to the suppression of photoinduced electron transfer (PET) process. Therefore, the terbium complex can be used as a selective fluorescent silver probe.
Dang
Fangfang
F
Department of Chemistry and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China.
Lei
Kewei
K
Liu
Weisheng
W
D000081:Acetamides / Q000737:chemistry* / Q000378:metabolism*; D001593:Benzyl Compounds / Q000737:chemistry* / Q000378:metabolism*; D018360:Crystallography, X-Ray; D004583:Electrons; D005456:Fluorescent Dyes / Q000737:chemistry* / Q000378:metabolism; D049449:Luminescence; D008956:Models, Chemical; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry* / Q000378:metabolism*; D012834:Silver / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013725:Terbium / Q000737:chemistry
C528473:3,3,7,7-tetra(N-ethyl-N-benzyl(acetamide)-2-oxymethyl)-5- oxanonane; D000081:Acetamides; D001593:Benzyl Compounds; D005456:Fluorescent Dyes; D009942:Organometallic Compounds; D013725:Terbium; D012834:Silver