نتایج جستجو برای: zn bdc
تعداد نتایج: 39338 فیلتر نتایج به سال:
Two new coordination polymers based on Zn(II) and 2,5-diiodoterephthalate—{[Zn(2,5-I-bdc)bpe}] (1) {[Zn(2,5-I-bdc)bpen}] (2)—were synthesized characterized. Polymers 1 2 feature halogen bonding between the I atoms of MOF DMF guest molecules, which plays a crucial role in structure stabilization. Selectivity sorption towards different organic substrates was examined.
A MOF-5 [Zn(4)O(BDC)(3); BDC = 1,4-benzenedicarboxylate]@SBA-15 hybrid material has been prepared by using SBA-15 as a matrix. This hybrid material exhibits improved hydrostability under ambient conditions and unique gas adsorption behavior compared with pristine MOF-5.
The hydrothermal reaction of M(NO(3))(2).4H(2)O (M = Zn and Cd) with benzene-1,4-dicarboxylic acid (H(2)bdc) or benzene-1,3-dicarboxylic acid (H(2)ip) and 1,2-bis(1,2,4-triazol-4-yl)ethane (btre) produced the mixed-ligand coordination polymers (MOFs) {[Zn(2)(micro(2)-bdc)(2)(micro(4)-btre)]} (), {[Cd(2)(micro(4)-bdc)(micro(4)-btre)(2)](NO(3))(2).H(2)O} and {[Zn(2)(micro(3)-ip)(2)(micro(2)-btre)...
In the title coordination polymer, [Zn(C(8)H(4)O(5))(C(14)H(22)N(4))](n), the Zn(II) cation is coordinated by an O(2)N(2) donor set in a distorted tetra-hedral geometry. The Zn(II) ions are linked by μ(2)-OH-bdc (OH-H(2)bdc = 5-hy-droxy-isophthalic acid) and bbie ligands [bbie = 2,2'-diethyl-1,1'-(butane-1,4-di-yl)diimidazole], forming a two-dimensional layer parallel to the ab plane. The layer...
Hydrothermal reactions of Zn(OAc)2 ̈ 2H2O with flexible bipyridyl benzene ligand and three dicarboxylic derivatives gave rise to four new coordination polymers, [Zn7(μ4-O)2(OAc)10(bpmb)]n (1), [Zn(5-OH-1,3-BDC)(bpmb)]n (2), [Zn(1,2-BDC)(bpmb)]n (3) and [Zn2(ADB)2(bpmb)]n (4) (bpmb = 1,4-bis(pyridine-3-ylmethoxy)benzene, 5-OH-1,3-H2BDC = 5-hydroxy-1,3-benzenedicarboxylic acid, 1,2-H2BDC = 1,2-ben...
In the title complex, [Zn(2)(C(8)H(4)O(4))(C(20)H(11)N(4)O(2))(2)]·4H(2)O, the Zn(II) atom is six-coordinated by two carboxyl-ate O atoms from one bidentate benzene-1,4-dicarboxyl-ate (1,4-BDC) ligand, two carboxyl-ate O atoms from two different monodentate 4-(1H-1,3,7,8-tetra-aza-cyclo-penta-[l]phenanthren-2-yl)benzoate (HNCP) ligands and two HNCP N atoms. The Zn(II) atoms are bridged by the c...
Metal-Organic Frameworks (MOFs) represent a new class of highly porous materials. On this regard, two nano porous metal-organic frameworks of [Zn2(1,4-bdc)2(H2O)2∙(DMF)2]n (1) and [Zn2(1,4-bdc)2(dabco)]·4DMF·1⁄2H2O (2), (1,4-bdc = benzene-1,4-dicarboxylate, dabco = 1,4-diaza...
The synthesis and structure of the 4,4′-dipyridyl N,N′-donor ligand with a central thiazolo[5,4-d]thiazole (tztz) unit, named Dptztz is presented. With the linker Dptztz and isophthalate (benzene-1,3-dicarboxylate, 1,3-BDC2−) the mixed-linker, two-dimensional coordination network [Zn(1,3-BDC)Dptztz]·DMF could be obtained (DMF = dimethylformamide), which belongs to the class of coordination poly...
4,4'-Bis(dihexylaminocarbonyl)-2,2'-bipyridine (BDC-Bipy) was synthesized and studied systematically as a chelating reagent for metal ions extraction in supercritical CO(2). The compound showed high extraction efficiency for Co(2+) (100%), Cu(2+) (100%), Cd(2+) (98.2%), and Zn(2+) (100%) ions and good extraction efficiency for Sr(2+) (79.4%) and Pb(2+) (89.8%) when the extraction was performed ...
In this research, a series of spiro compounds was efficiently synthesized via one-pot multi component reactions of isatins, aryl amines, dimethyl acetylenedicarboxylate and hydrazine in the presence of Zn(BDC) MOF as catalyst. The key superiority of this process is high yields, easy work-up, short reaction times, and purification of the products by the non-chromatographic system. The study of t...
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