Solvothermal reaction of Zn(NO_(3))_(2)·6H_(2)O with di-pyridin-2-yl-[4-(2-pyridin-4-yl-vinyl)-phenyl]-amine(ppvppa)and 1,4-naphthalenedicarboxylic acid(1,4-H_(2)NDC)in H_(2)O and MeCN at 150℃yielded a twodimens...Solvothermal reaction of Zn(NO_(3))_(2)·6H_(2)O with di-pyridin-2-yl-[4-(2-pyridin-4-yl-vinyl)-phenyl]-amine(ppvppa)and 1,4-naphthalenedicarboxylic acid(1,4-H_(2)NDC)in H_(2)O and MeCN at 150℃yielded a twodimensional(2D)coordination Zn(Ⅱ)polymer[Zn(ppvppa)(1,4-NDC)]_(n)(1).Compound 1 was characterized by elemental analysis,IR spectroscopy,powder X-ray diffraction,single-crystal X-ray diffraction and thermogravimetric analysis.Compound 1 consists of dimeric[Zn_(2)(ppvppa)_(2)]units linked by 1,4-NDC bridges to generate a 2D honeycomb network.Either compound 1 or ppvppa alone can detect Hg^(2+)or MeHgI selectively and with good sensitivity.Upon addition of Hg^(2+)ions to a MeCN solution of ppvppa,marked changes in the UV-vis and fluorescence spectra are observed,associated with colour changes,which are easily identified by the naked eye.The pyridinyl rings of ppvppa are coordinated to the Hg^(2+)ion.This motif in the presence of NO_(3)^(−)ions forms a binuclear complex[Hg_(2)(ppvppa)_(2)(NO_(3))_(4)](2),which has been characterized as the solvate[Hg_(2)(ppvppa)_(2)(NO_(3))_(4)]·H_(2)O·4MeCN(2·H_(2)O·4MeCN)by singlecrystal X-ray diffraction studies.In aqueous solution,compound 1 emits pale orange light at ambient temperature and the addition of Hg^(2+)or MeHgI induces an change of fluorescence color from pale orange to blue.Compound 1 is a promising candidate as a sensitive naked-eye indicator for Hg^(2+)or MeHgI in water under a UV lamp.展开更多
基金financial support from the National Natural Science Foundation of China(Grant No.21373142,21531006,and 21471108)State Key Laboratory of Organometallic Chemistry,Shanghai Institute of Organic Chemistry,Chinese Academy of Sciences(2015kf-07)+3 种基金the financial support from the Qing-Lan Projectthe“333”Project of Jiangsu Provincethe Priority Academic Program Development of Jiangsu Higher Education Institutionsthe“SooChow Scholar”Program of Soochow University.
文摘Solvothermal reaction of Zn(NO_(3))_(2)·6H_(2)O with di-pyridin-2-yl-[4-(2-pyridin-4-yl-vinyl)-phenyl]-amine(ppvppa)and 1,4-naphthalenedicarboxylic acid(1,4-H_(2)NDC)in H_(2)O and MeCN at 150℃yielded a twodimensional(2D)coordination Zn(Ⅱ)polymer[Zn(ppvppa)(1,4-NDC)]_(n)(1).Compound 1 was characterized by elemental analysis,IR spectroscopy,powder X-ray diffraction,single-crystal X-ray diffraction and thermogravimetric analysis.Compound 1 consists of dimeric[Zn_(2)(ppvppa)_(2)]units linked by 1,4-NDC bridges to generate a 2D honeycomb network.Either compound 1 or ppvppa alone can detect Hg^(2+)or MeHgI selectively and with good sensitivity.Upon addition of Hg^(2+)ions to a MeCN solution of ppvppa,marked changes in the UV-vis and fluorescence spectra are observed,associated with colour changes,which are easily identified by the naked eye.The pyridinyl rings of ppvppa are coordinated to the Hg^(2+)ion.This motif in the presence of NO_(3)^(−)ions forms a binuclear complex[Hg_(2)(ppvppa)_(2)(NO_(3))_(4)](2),which has been characterized as the solvate[Hg_(2)(ppvppa)_(2)(NO_(3))_(4)]·H_(2)O·4MeCN(2·H_(2)O·4MeCN)by singlecrystal X-ray diffraction studies.In aqueous solution,compound 1 emits pale orange light at ambient temperature and the addition of Hg^(2+)or MeHgI induces an change of fluorescence color from pale orange to blue.Compound 1 is a promising candidate as a sensitive naked-eye indicator for Hg^(2+)or MeHgI in water under a UV lamp.
