The interaction of Hg^2＋ with polyphenyl quinoxaline ligand 2,3,6,7,10,11-hexaphenyldipyrazino[2,3-f：2＇,3＇-h]quinoxaline（HPQ） was investigated, and a new complex（C（49）H（32）N6Br2Cl2Hg） has been synthesized ...The interaction of Hg^2＋ with polyphenyl quinoxaline ligand 2,3,6,7,10,11-hexaphenyldipyrazino[2,3-f：2＇,3＇-h]quinoxaline（HPQ） was investigated, and a new complex（C（49）H（32）N6Br2Cl2Hg） has been synthesized and characterized. It exhibits a 0D single-core structure,and adopts triclinic P 1 space group with a = 11.139（2）, b = 13.429（3）, c = 14.488（3）A, α =76.10（3）, β = 83.16（3）, γ = 87.36（3）o, V = 2088.4（7） A^3, Z = 2, S = 1.056, F（000） = 1104, R = 0.0417 and w R = 0.0931（I 〉 2σ（I））. Furthermore, the behavior of HPQ with Hg^2＋ in the solution was also investigated, and the result shows that HPQ was found to have excellent fluorescent selectivity for Hg^2＋ over many other metal ions（Li^＋, K^＋, Na^＋, Sr^＋, Ca^2＋, Mg^2＋, Mn^2＋, Fe^3＋, Ni^2＋, Co^2＋, Cu^2＋, Zn^2＋,Cd^2＋, Pb^2＋, Al^3＋ and Cr^3＋） based on the intermolecular charge-transfer mechanism, which makes HPQ a potential fluorescence sensor or probe for Hg^2＋.展开更多
基金supported by the NSFC(21301100)the Education Department Fund of Henan(13A150819)Special Fund of Nanyang Normal University(ZX2013029)
文摘The interaction of Hg^2＋ with polyphenyl quinoxaline ligand 2,3,6,7,10,11-hexaphenyldipyrazino[2,3-f：2＇,3＇-h]quinoxaline（HPQ） was investigated, and a new complex（C（49）H（32）N6Br2Cl2Hg） has been synthesized and characterized. It exhibits a 0D single-core structure,and adopts triclinic P 1 space group with a = 11.139（2）, b = 13.429（3）, c = 14.488（3）A, α =76.10（3）, β = 83.16（3）, γ = 87.36（3）o, V = 2088.4（7） A^3, Z = 2, S = 1.056, F（000） = 1104, R = 0.0417 and w R = 0.0931（I 〉 2σ（I））. Furthermore, the behavior of HPQ with Hg^2＋ in the solution was also investigated, and the result shows that HPQ was found to have excellent fluorescent selectivity for Hg^2＋ over many other metal ions（Li^＋, K^＋, Na^＋, Sr^＋, Ca^2＋, Mg^2＋, Mn^2＋, Fe^3＋, Ni^2＋, Co^2＋, Cu^2＋, Zn^2＋,Cd^2＋, Pb^2＋, Al^3＋ and Cr^3＋） based on the intermolecular charge-transfer mechanism, which makes HPQ a potential fluorescence sensor or probe for Hg^2＋.
