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Syntheses And Structures Of Coordination Polymers Containing Diacid

Posted on:2009-10-12Degree:MasterType:Thesis
Country:ChinaCandidate:H Y WuFull Text:PDF
GTID:2121360245474601Subject:Organic Chemistry
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Diacid coordination polymer without neutral ligand [Cu2(bpdc)2Cl2(NO3)2(H2O)2]n(crystall)was synthesized with 4,4'-dicarboxy-2,2'-bipyridine and copper salt.The infrared spectrums of crystal 1 were compared with the spectrums of raw materials.Crystal X-ray diffraction of crystal 1 indicates that its space group is P-1,and the crystal Structure is 1D rhombic grid.The cell constant is a=6.950(?),b= 8.149(?),c=13.548(?),α=92.32,β=9103.38,γ=98.56.DAT of crystal 1 show that crystal 1 decomposed from 160℃to 450℃.In this paper,four naphthyldisulfnates:2,6-naphthalenedisulfonate (2,6-nds),1,6-naphthalenedisulfonate(1,6-nds),2,7-naphthalenedisulfonate(2,7-nds), 1,5-naphthalenedisulfonate(1,5-nds)separately were used with neutral ligand 1,3-bis(4-pyridyl)propane(bpp)and metal salts to synthesize coordination polymers.And three crystals employing neutral ligand and naphthyldisulfnates have been synthesized: {[Zn(bpp)(2,6-nds)(H2O)2].2H2O}n(crystal 3),{[Ni(bpp)2(H2O)2]. (1,6-nds)6H2O}n(crystal 4),{[Zn(bpp)2(H2O)2]·(2,7-nds)}n(crystal 5). Their infrared spectrums were compared with the spectrums of raw materials.The crystal structures have been determined by single crystal X-ray diffraction.Both crystal 4 and crystal 5 have porous structure.The relationship of different sulfonate radical positions of naphthyldisulfnates and crystal structures were studied.And crystal X-ray diffraction show that only in crystal 3 sulfonate is radical coordinated,in the other two crystals naphthyldisulfnates are counterions.Crystal X-ray diffraction of crystal 3 indicates that its space group is C2/c,and its crystal Structure is Zigzag Chain.The cell constant is a=25.1660(11)(?),b=8.3320(3)(?),c=18.8610(7)(?),α=90.00°,β=98.2590(14)(?),γ=90.00°.As the terminal group bpp occupies the axial direction of Zn2+,and the configuration of bpp is the lowest energy configuration TT.Crystal X-ray diffraction of crystal 4 indicates that its space group is P2(1)/n,and the crystal Structure is 1D double hinge.The cell constant is a=12.5040(3)(?),b=19.6590(4)(?),c=16.9620(4)(?),α=90.00°,β=97.5040°,γ=90.00°.And the configuration of bpp is the TG..Crystal X-ray diffraction of crystal 5 indicates that its space group is P2(1)/n,and the crystal Structure is 1D rhombic grid.The cell constant is a =23.1180(7)(?),b=11.2090(3)(?),c=19.6870(7)(?),α=90.00°,β=114.0560°,γ=90.00°.And the configuration of bpp is the TT and TG.The four coordination polymers were synthesized by hydrothermal method comparing solution method.
Keywords/Search Tags:naphthyldisulfnate, hydrothermal synthesis method, coordination polymer, 4,4'-dicar- boxy-2,2'-bipyridine
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