全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

以Keggin型磷钼酸阴离子为模板的超分子化合物的合成与表征

DOI: 10.11830/ISSN.1000-5013.2014.06.0675

Keywords: 超分子化合物, 水簇, 多酸阴离子, 三氨基三嗪, Keggin结构

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用溶液法合成一个捕获二维无限水层的多酸杂化化合物3H3[PMo12O40]?6C3N6H6?31H2O.X射线单晶衍射表明:标题化合物属于三方晶系,空间群为P-3;其晶胞参数a=1.754 0(9)nm,b=1.754 0(9)nm,c=1.330 5(3)nm,α=90°,β=90°,γ=120°,V=3.545 3(4)nm3.该化合物中的Keggin型多酸阴离子作为模板诱导了水簇形成,搭构成一个二维水层{(H2O)30}n,三氨基三嗪填充孔洞后增强了水簇的稳定性. 热失重分析和循环伏安测试结果表明:标题化合物具有较好的热稳定性和优良的氧化还原性能.

References

[1]  JIAN Fang-fang,WANG Xian,WANG Jing,et al.A new method for the synthesis of organic-polyoxometallate hybrid compounds[J].Polyhedron,2010,29(2):886-896.
[2]  ZWIER T S.The structure of protonated water clusters[J].Science,2004,304(5674):1119-1120.
[3]  NANGIA A.Encyclopaedia of supramolecular chemistry[M].New York:Taylor Francis,2007:1-9.
[4]  AGHABOZORG H,ESTHTIAGH H,SALIMI A R,et al.A brief review on formation of(H2O)n clusters in supramolecular proton transfer compounds and their complexes[J].Journal of the Iranian Chemical Society,2010,7(2):289-300.
[5]  RODRIGUEZ C P, VARGAS D G,HERBERT H,et al.Modification of 2D water that contains hexameric units in chair and boat conformations-a contribution to the structural elucidation of bulk water[J].Angew Chem Int Ed,2004,43(23):3041-3044.
[6]  CARBALLO R,COVELO B,FERNANDEZ H N,et al.Supramolecular aggregation of hexameric water clusters into a 2D water polymer containing(H2O)18 holes[J].Cryst Growth Des,2006,6:629-631.
[7]  CHEN Wen-jian,LONG La-sheng,HUANG Rong-bin,et al.A dihalide-decahydrate cluster of [X2(H2O)10]2- in a Supramolecular Architecture of {[Na2(H2O)6(H2O TMEQ[6] )]? 2(C6H5NO3)} X2(H2O)10[J]. Cryst Growth Des,2013,13(6):2507-2513.
[8]  CAO Man-li,WU Jin-ji,YE Bao-hui,et al.Template trapping and crystal structure of the magic number(H2O)21 cluster in thetetrahedral hole of a nanoscale global ion packed in a face-centered cubic pattern[J].J Am Chem Soc,2009,131:3458-3459.
[9]  WANG Yan,OKAMURA T,SUN Wei-yin,et al.Large(H2O)56(OH)6 and(H2O)20 clusters inside a nanometer-sized M6L8 cage constructed by five-coordinated copper(Ⅱ)and flexible carboxamide-containing tripodal ligand[J].Cryst Growth Des,2008,3:802-804.
[10]  RAJARSHI C,LUNA P,DIPAK K H,et al.Encapsulation of a double-helical water-nitrate chain inside unique double helical chiral channels formed from Keggin POM and hexaquo-cobalt(Ⅱ)units[J].Polyhedron,2014,68(1):265-271.
[11]  XU Wen-zhi,SUN Jun-liang,HUANG Zhi-tang,et al.Molecular encapsulation of a discrete(H2O)32 cluster with S6 symmetry in an organic crystalline supermolecule[J].Chemical Communications,2009(2):171-173.
[12]  MIYAZAKI M,FUJII A,EBATA T,et al.Infrared spectroscopic evidence for protonated water clusters forming nanoscale cages[J].Science,2004,304(5674):1134-1137.
[13]  SHIN J W,HAMMER N I,DIKEN E G,et al.Infrared Signature of structures associated with the H+(H2O)n(n=6 to 27)clusters[J].Science,2004,304(5674):1137-1140.
[14]  KANG Zhen-hui,WANG En-bo,MAO Bao-dong,et al.Controllable fabrication of carbon nanotube and nanobelt with a polyoxometalate-assisted mild hydrothermal process[J].J Am Chem Soc,2005,127:6534-6535.
[15]  WEI Mei-lin,HE Cheng,HUA Wei-jie,et al.A large protonated water cluster H+(H2O)27 in a 3D metal-organic framework[J].J Am Chem Soc,2006,128(41):13318-13319.
[16]  INFANTES L,CHISHOLM J,MOTHERWELL S.Extended motifs from water and chemical functional groups in organic molecular crystals[J].Cryst Eng Comm,2003,5(85):480-486.
[17]  MASCAL M,INFANTES L,CHISHOLM J.Water oligomers in crystal hydrates: What’s news and what isn’t?[J].Angewandte Chemie International Edition,2006,45(1):32-36.
[18]  王恩波,胡长文,许林.多酸化学导论[M].北京:化学工业出版社,1998:14-18.
[19]  KHAN A.Theoretical studies of large water clusters:(H2O)28,(H2O)29,(H2O)30,and(H2O)31 hexakaidecahedral structures[J].The Journal of Chemical Physics,1997,106(13):5537-5540.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133