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Divalent metal coordination polymers containing terephthalate (tere) and bis(4-pyridylformyl)piperazine (bpfp) show diverse and interesting two-dimensional (2D) interpenetrated, three-dimensional (3D) self-penetrated, or one-dimensional (1D) polyrotaxane topological features. Isostructural {[M(tere)(bpfp)(H(2)O)(2)]?4H(2)O}(n) phases (1, Zn; 2, Co) exhibit mutually inclined 2D + 2D → 3D interpenetration of gridlike layers. {[Cd(4)(tere)(4)(bpfp)(3)(H(2)O)(2)]·8H(2)O}(n) (3) possesses a novel 3,4,8-connected trinodal self-penetrated network with (4.6(2))(2)(4(2)6(16)8(7)10(3))(4(2)6(4))(2) topology. [Zn(2)Cl(2)(tere)(bpfp)(2)](n) (4) is the first example of a 1D + 1D → 1D polyrotaxane coordination polymer, to the best of our knowledge. Metal coordination geometry plays a crucial role in dictating the overall dimensionality in this system. Thermal decomposition behavior and luminescent properties of the d(10) configuration metal derivatives are also presented herein. 相似文献
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Analytical and Bioanalytical Chemistry - 相似文献
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GM Sun F Luo YM Song XZ Tian HX Huang Y Zhu ZJ Yuan XF Feng MB Luo SJ Liu WY Xu 《Dalton transactions (Cambridge, England : 2003)》2012,41(38):11559-11561
Herein, we report a new acylamide ligand and its application in the construction of a metal-organic framework. The resultant acylamide metal-organic framework, namely [Zn(2)(L)(OH)(btc)](n) (1, L = N(1),N(4)-bis(pyridin-3-ylmethyl) naphthalene-1,4-dicarboxamide, H(3)btc = benzene-1,3,5-tricarboxylic acid), was obtained by hydrothermal synthesis. The outstanding structural feature of it is the 0D + 2D → 2D polycatenation array containing a self-catenated feature which has never previously been observed. To the best of our knowledge, the coexistence of self-catenation and polycatenation phenomena is highly exceptional. 相似文献
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M. Popp J. Contzen H. Immendorff D. P. Mileff N. E. Pestow F. B. Carpenter R. O. Powell Z. I. Kertész F. J. Kokoski A. W. Clark H. A. Pieters M. J. Mannes K. J. B. de Kleermaeker G. H. C. van Bers J. Haas F. Alten H. Weiland J. S. Teletow S. P. Faraschjan W. I. Tichonenko 《Analytical and bioanalytical chemistry》1937,110(1-2):53-60
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P. Thieme 《Analytical and bioanalytical chemistry》1964,199(1):65-65
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H. Jork 《Analytical and bioanalytical chemistry》1963,194(4):278-279
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P. Thieme 《Analytical and bioanalytical chemistry》1964,199(1):35-36
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Egon Stahl 《Analytical and bioanalytical chemistry》1961,181(1):303-312
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本文研究了D2EHPA和D2EHDTPA在硝酸体系中萃取和反萃取银的条件,并用饱和法和连续变量法测定了革合物的组成,以红外光谱和核磁共振谱探讨革合物的成键情况,通过EHMO计算结果说明了上述两种革取剂对Ag+萃取能力异同的原因。 相似文献
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维生素D包合物中维生素D的高效液相色谱测定 总被引:2,自引:2,他引:0
Vitamin D in the VDHCD inclusion complex was determined by HPLC on a Resolve silica column usingamobile phase of n-hexane:n-amylalcohol=95:5(V/V)and UV detection at 254 nm.The quantitative de-termination was performed with dimethyl phthalate as the internal standard. 相似文献
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YongBinHAN JinPingCHEN YunYanGAO BaiNingLIU GuoQiangYANG YiLI 《中国化学快报》2005,16(7):871-874
Two modes of heterogeneous photoisomerization of trans-vitamin D3 to cis-vitamin D3 are described. The occurrence of isomerization on the substrate bounded to the polymeric support gives us the possibility in succession synthesis of 1α-hydroxyvitamin D3. The polymer-bound anthracene can sensitize isomerization of trans-vitamin D3 to cis-vitamin D3 efficiently and ease the separation process. 相似文献