1256453-52-7Relevant academic research and scientific papers
Functional heterometallic coordination polymers with metalloligands as tunable luminescent crystalline materials
Du, Dong-Ying,Qin, Jun-Sheng,Wang, Xin-Long,Zhang, Shu-Ran,Shen, Ping,Li, Shun-Li,Su, Zhong-Min,Lan, Ya-Qian,Sun, Cheng-Xin
, p. 19673 - 19678,6 (2012)
Five heterometallic luminescent crystalline materials with the metalloligand, [Zn(HL)EuxTby(H2O) 2][ZnBr4]·H2O (x = 1, y = 0, IFMC-21; x = 0.75, y = 0.25, IFMC-22; x = 0.5, y = 0.5, IFMC-23; x = 0.25, y = 0.75, IFMC-24; x = 0, y = 1, IFMC-25; H4L = 4,4′,4″, 4″′-(2,2′,2″,2″′-(ethane-1, 2-diylbis(azanetriyl))tetrakis(methylene)-tetrakis-(1H-benzo[d]imidazole-2, 1-diyl))tetrakis(methylene)-tetrabenzoic acid; IFMC = Institute of Functional Material Chemistry), were prepared by the combination of hydrothermal and ionothermal methods for the first time. IFMC-21-25 can be obtained by introducing the desired Eu(iii) and Tb(iii) in the initial experiments. In these crystalline materials, the metalloligand Zn(HL) was connected by bi-lanthanide cores leading to a 2D sheet-structure and [ZnBr4]2- ions were distributed in the interspaces of the sheet. The luminescent properties of IFMC-21 to 25 were investigated and the results reveal that they exhibit characteristic Eu(iii) and Tb(iii) ion emissions, and the intensities of red and green arising from Eu(iii) and Tb(iii) emissions are shifted correspondingly by tuning the ratios of Eu(iii):Tb(iii).
Self-assembly versus stepwise synthesis: Heterometal-organic frameworks based on metalloligands with tunable luminescence properties
Zhang, Shu-Ran,Du, Dong-Ying,Tan, Ke,Qin, Jun-Sheng,Dong, Hui-Qing,Li, Shun-Li,He, Wen-Wen,Lan, Ya-Qian,Shen, Ping,Su, Zhong-Min
, p. 11279 - 11286 (2013)
A new family of heterometal-organic frameworks has been prepared by two synthesis strategies, in which IFMC-26 and IFMC-27 are constructed by self-assembly and IFMC-28 is obtained by stepwise synthesis based on the metalloligand (IFMC=Institute of Functional Material Chemistry). IFMC-26 is a (3,6)-connected net and IFMC-27 is a (4,8)-connected 3D framework. The metalloligands {Ni(H4L)}(NO3)2 are connected by binuclear lanthanide clusters giving rise to a 2D sheet structure in IFMC-28. Notably, IFMC-26-EuxTby and IFMC-28-EuxTb y have been obtained by changing the molar ratios of raw materials. Owing to the porosity of IFMC-26, Tb3+@IFMC-26-Eu and Eu 3+@IFMC-26-Tb are obtained by postencapsulating TbIII and EuIII ions into the pores, respectively. Tunable luminescence in metal-organic frameworks is achieved by the two kinds of doping methods. In particular, the quantum yields of heterometal-organic frameworks are apparently enhanced by postencapsulation of LnIII ions. Copyright
