کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1339362 | 979703 | 2006 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Coordination polymers constructed from o-phthalic acid and diamines: Syntheses and crystal structures of the phthalate-imidazole complexes {[Cu(Pht)(Im)2] · 1.5H2O}n and [Co(Pht)(Im)2]n and their application in oxidation catalysis Coordination polymers constructed from o-phthalic acid and diamines: Syntheses and crystal structures of the phthalate-imidazole complexes {[Cu(Pht)(Im)2] · 1.5H2O}n and [Co(Pht)(Im)2]n and their application in oxidation catalysis](/preview/png/1339362.png)
Two new copper(II) and cobalt(II) coordination polymers, {[Cu(Pht)(Im)2] · 1.5H2O}n (1) and [Co(Pht)(Im)2]n (2) (where Pht2− = dianion of o-phthalic acid; Im = imidazole) have been synthesized and their crystal structures determined by X-ray crystallography. The structures of 1 and 2 comprise, respectively, [Cu(Im)2] and [Co(Im)2] units linked by bridging 1,6-phthalate ions to form infinite chains. Although there are two independent Cu atoms in the structure of 1, each copper(II) center adopts an approximately square planar coordination mode with two O atoms from different phthalate ions and two N atoms of Im. In complex 2, cobalt(II) atoms are tetrahedrally coordinated. Extended hydrogen bonding networks stabilize the three-dimensional structures in both complexes. Preliminary results show that 1 and 2 exhibit catalytic activity on the oxidation of cyclohexene using hydrogen peroxide as oxidant under aerobic conditions at ambient temperature.
Two new Cu(II) and Co(II) coordination polymers, {[Cu(Pht)(Im)2] · 1.5H2O}n (1) and [Co(Pht)(Im)2]n (2) (where Pht2− = dianion of o-phthalic acid; Im = imidazole) have been synthesized and their crystal structures determined by X-ray crystallography. The structures of 1 and 2 comprise, respectively, [Cu(Im)2] and [Co(Im)2] units linked by bridging 1,6-phthalate ions to form infinite chains. Extended hydrogen bonding networks stabilize the three-dimensional structures in both complexes. Preliminary results show that 1 and 2 exhibit catalytic activity on the oxidation of cyclohexene using hydrogen peroxide as oxidant under aerobic conditions at ambient temperature.Figure optionsDownload as PowerPoint slide
Journal: Polyhedron - Volume 25, Issue 5, 27 March 2006, Pages 1215–1222