跳至主要内容

A Chiral Three Dimensional Potassium(I)/Strontium(II)/Chromium(III) Oxalato-Bridged Coordination Polymer: Synthesis, Characterization and Thermal Analysis

Read full paper at:
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52558#.VJtsjcCAM4

A new compound of general formula {[(H2O)2K(μ-H2O)Sr]@[Cr(C2O4)3]}n (1) has been synthesized in water and characterized by elemental and thermal analyses, EDX, IR and UV-Vis spectroscopies and by single crystal X-ray structure determination. Compound 1 crystallizes in the chiral space group Fdd2 of orthorhombic system with a = 14.110 (4) Å, b = 36.074 (11)Å, c =11.034 (3)Å and Z = 16. Compound 1 is a coordination polymer in which the three-dimensional lattice framework is realized by the interconnectivity between K+ cations, Sr2+ cations, aqua ligands and [Cr(C2O4)3]3– complex anions. The asymmetric unit of 1 consists of one cationic motif formally written [(H2O)2K(μ-H2O)Sr]3+ and one anionic entity, [Cr(C2O4)3]3–. The K+ and Sr2+ ions in the cationic motif are both eight-coordinate while the Cr3+ ions in the anionic complex are six-coordinate in a distorted octahedral geometry. Coulombic interactions between the ionic motifs and the three-dimensional H-bonding involving aqua ligands help to consolidate the bulk structure. Thermogra-vimetric analysis (TGA) shows that compound 1 is stable to heat up to ca. 80℃.
Cite this paper
Nenwa, J. , Kaboré, I. , Mbiangué, Y. , Djonwouo, P. and Ndifon, P. (2014) A Chiral Three Dimensional Potassium(I)/Strontium(II)/Chromium(III) Oxalato-Bridged Coordination Polymer: Synthesis, Characterization and Thermal Analysis. Crystal Structure Theory and Applications, 3, 67-75. doi: 10.4236/csta.2014.34008.
 

[1] Moulton, B. and Zaworotko, M.J. (2001) From Molecules to Crystal Engineering: Supramolecular Isomerism and Polymorphism in Network Solids. Chemical Reviews, 101, 1629-1658.
http://dx.doi.org/10.1021/cr9900432
[2] Rao, C.N.R. and Nath, H. (2003) Inorganic Nanotubes. Dalton Transactions, 1-24.
http://dx.doi.org/10.1039/b208990b
[3] Pardo, E., Train, C., Boubekeur, K., Gontard, G., Cano, J., Lloret, F., Nakatani, K. and Verdaguer, M. (2012) Topological Versatility of Oxalate-Based Bimetallic One-Dimensional (1D) Compounds Associated with Ammonium Cations. Inorganic Chemistry, 51, 11582-11593.
http://dx.doi.org/10.1021/ic3014915
[4] Coronado, E., Galán-Mascarós, J.R., Gómez-Garcí a, C.J. and Martí nez-Agudo, J.M. (2001) Molecule-Based Magnets Formed by Bimetallic Three-Dimensional Oxalate Networks and Chiral Tris(bipyridyl) Complex Cations. The Series [ZII(bpy)3][ClO4][MIICrIII(ox)3] (ZII = Ru, Fe, Co, and Ni; MII = Mn, Fe, Co, Ni, Cu, and Zn; ox = Oxalate Dianion). Inorganic Chemistry, 40, 113-120.
http://dx.doi.org/10.1021/ic0008870
[5] Vaidhyanathan, R., Natarajan, S. and Rao, C.N.R. (2001) Three-Dimensional Yttrium Oxalates Possessing Large Channels. Chemistry of Materials, 13, 185-191.
http://dx.doi.org/10.1021/cm000419o
[6] Decurtins, S., Schmalle, H.W., Schneuwly, P., Ensling, J. and Guetlich, P. (1994) A Concept for the Synthesis of 3- Dimensional Homo- and Bimetallic Oxalate-Bridged Networks [M2(ox)3]n. Structural, Moessbauer, and Magnetic Studies in the Field of Molecular-Based Magnets. Journal of the American Chemical Society, 116, 9521-9528.
http://dx.doi.org/10.1021/ja00100a016
[7] Lacroix, P.G., Malfant, I., Bé nard, S., Yu, P., Riviè re, E. and Nakatani, K. (2001) Hybrid Molecular-Based Magnets Containing Organic NLO Chromophores: A Search toward an Interplay between Magnetic and NLO Behavior. Chemistry of Materials, 13, 441-449.
http://dx.doi.org/10.1021/cm001177v
[8] André s, R., Brissard, M., Gruselle, M., Train, C., Vaissermann, J., Malé zieux, B., Jamet, J.P. and Verdaguer, M. (2001) Rational Design of Three-Dimensional (3D) Optically Active Molecule-Based Magnets: Synthesis, Structure, Optical and Magnetic Properties of {[Ru(bpy)3]2+, ClO4–, [MnIICrIII(ox)3]–}n and {[Ru(bpy)2ppy]+, [MIICrIII(ox)3]–}n, with MII = MnII, NiII. X-Ray Structure of {[ΔRu(bpy)3]2+, ClO4–, [ΔMnIIΔCrIII(ox)3]–}n and {[ΛRu(bpy)2ppy]+, [ΛMnIIΛCrIII(ox)3]–}n. Inorganic Chemistry, 40, 4633-4640.
http://dx.doi.org/10.1021/ic010363f
[9] Decurtins, S., Schmalle, H.W., Pellaux, R., Schneuwly, P. and Hauser, A. (1996) Chiral, Three-Dimensional Supramolecular Compounds: Homo- and Bimetallic Oxalate- and 1,2-Dithiooxalate-Bridged Networks. A Structural and Photophysical Study. Inorganic Chemistry, 35, 1451-1460.
http://dx.doi.org/10.1021/ic950791j
[10] Bé lombé , M.M., Nenwa, J., Mbiangué , Y.A., Evina-Nnanga, G., Mbomé kallé , I.M., Hey-Hawkins, E., Lö nnecke, P. and Majoumo, F. (2003) Unusual Aquation of Ba2+ Ions in the Solid State: Synthesis and X-ray Structural and Spectroscopic Characterization of the Novel Polymeric Complex Salt of Empirical Formula {Ba6(H2O)17[Cr(ox)3]4}•7H2O (ox = Oxalate Dianion). Dalton Transactions, 2117-2118.
http://dx.doi.org/10.1039/b302489j
[11] Makon Ma Houga, N., Dolinar, B.S., Nenwa, J. and Gouet, B. (2014) Synthesis, Crystal Structure and Thermal Behavior of a 3-D Barium(II)/Iron(III)-Oxalate Polymer. Open Journal of Inorganic Chemistry, 4, 21-29.
http://dx.doi.org/10.4236/ojic.2014.42004
[12] Bé lombé , M.M., Nenwa, J., Mbiangué , Y.A., Gouet, B., Majoumo, F., Hey-Hawkins, E. and Lö nnecke, P. (2009) Water-Filled Pseudo-Nanotubes in Ag11.60H0.40[Cr(C2O4)3]4•15H2O: Synthesis, Characterization and X-Ray Structure. Inorganica Chimica Acta, 362, 1-4.
http://dx.doi.org/10.1016/j.ica.2007.03.003
[13] Bé lombé , M.M., Nenwa, J., Tene, T.O. and Fokwa, B.P.T. (2010) Synthesis, X-Ray Structure and Thermal Behavior of Isomorphous Silver-Deficient Channel Lattice Frameworks with General Formula [(Ag0.25/M0.25)(H2O)]@[Ag2M- (C2O4)3]•4H2O (M = CoIII, CrIII). Global Journal of Inorganic Chemistry, 1, 34-41.
[14] Bé lombé , M.M., Nenwa, J., Mbiangué , Y.A., Majoumo, F., Lönnecke, P. and Hey-Hawkins, E. (2009) Hydrogen- Bonded Pillars of Alternating Chiral Complex Cations and Anions: 1. Synthesis, Characterization, X-Ray Structure and Thermal Stability of catena-{[Co(H2oxado)3][Cr(C2O4)3]•5H2O} and of Its Precursor (H3oxado)-[Co(H2oxado)3]-(SO4)2•2H2O. Dalton Transactions, 4519-4525.
http://dx.doi.org/10.1039/b818793b
[15] Mbiangué, Y.A., Nenwa, J., Bé lombé , M.M., Ngoune, J. and Álvarez, E. (2012) Hydrogen-Bonded Pillars of Alternating Chiral Complex Cations and Anions: 2. Synthesis, Characterization and X-ray Structure of Isomorphous catena-{(H3O) [K(H2O)3]@[Ni(H2oxado)3]2[Cr(C2O4)3]2?3H2O} and catena-{(H3O)[Li(H2O)3]@[Ni(H2oxado)3]2[Cr(C2O4)3]2?3H2O}. ScienceJet, 1, 1-9.
[16] Train, C., Gheorghe, R., Krstic, V., Chamoreau, L.M., Ovanesyan, N.S., Rikken, G.L.J.A., Gruselle, M. and Verdaguer, M. (2008) Strong Magneto-Chiral Dichroism in Enantiopure Chiral Ferromagnets. Nature Materials, 7, 729-734.
http://dx.doi.org/10.1038/nmat2256
[17] Bailar Jr., J.C. and Jones, E.M. (1939) Tris(oxalato) Salts. Inorganic Syntheses, 1, 35-38.
http://dx.doi.org/10.1002/9780470132326.ch13
[18] SMART & SAINT Software Reference Manual, Version 6.45. Bruker Analytical X-Ray Systems, Inc., Madison, 2003.
[19] Sheldrick, G.M. (2002) SADABS, Version 2.05. A Software for Empirical Absorption Correction. University of Göttingen, Göttingen.
[20] Sheldrick, G.M. (2000) SHELXTL Version 6.1. Bruker AXS Inc., Madison.
[21] Sheldrick, G.M. (2001) SHELXTL Version 6.12. Bruker AXS Inc., Madison.
[22] Sheldrick, G.M. (1997) SHELXL97 Program for Crystal Structure Refinement. University of Göttingen, Göttingen.
[23] Brandenburg, K. (2005) Diamond, Version 3.1. Crystal Impact GbR, Bonn.
[24] Nakamoto, K. (1997) Infrared Spectra of Inorganic and Coordination Compounds. 5th Edition, John Wiley, New York, 74-77.
[25] Gouet, B., Signé , M., Nenwa, J. and Fokwa, B.P.T. (2013) Synthesis, Crystal Structure and Spectroscopic Characterization of an Oxalato Bridged Silver-Deficient Chromium(III) Salt with Water-Filled Nanochannels. Research Journal of Chemistry and Environment, 17, 57-63.
[26] Masters, V., Gahan, L.R. and Kennard, C.H.L. (1997) Calcium Potassium Tris(oxalato-O1,O2)chromate(III) Pentahydrate. Acta Crystallographica Section C, 53, 1576-1577.
http://dx.doi.org/10.1107/S0108270197007762                eww141225lx
标签：

评论

发表评论

此博客中的热门博文

Does Immigration Promote the Investment of the Monopolistic Firm?

In the present paper, we examine the effect of increasing uncertainty of immigrants’ growth on the optimal timing of investment of a firm that has a monopolistic power over the labor market. It is revealed that when the uncertainty of immigrants’ growth is more than a threshold level, increasing uncertainty of immigrants’ growth accelerates the optimal timing of firms’ investment and enhances the economic growth, even if the uncertainty of immigrants’ growth is formulated by the geometric Brownian motion, which is in sharp contrast to the standard result that an increase in the uncertainty postpones the optimal timing. With an increase in the immigrants over the past ten years, workforces in the host countries have been growing significantly to the extent that the immigrants represent 70% of the increase in the workforce in Europe, and 47% in the United States as OECD indicates. In the present paper, we attempted to investigate the effect of increased uncertainty caused by the growi...
发表评论
阅读全文

Education Policy Implementation: A Mechanism for Enhancing Primary Education Development in Zanzibar

Education is one of the fundamental rights of individuals; therefore, the government of a country needs to develop and strengthen educational policy and quality as well as to ensure that everyone has equal access to basic education. The improvement of access and quality of education in the world is becoming as an essential factor in development, whereas the basic education (primary school), is acknowledged as a foundation of the higher educational development for every country. To fulfill this goal, governments introduce several policies and procedures; however, it requires some reforms and participation from the politician, policymakers, and other stakeholders to re-examine educational policy so that it can lead to multiplication and betterment of the reforms. Educational reforms actually focus on accountability. A positive educational development and reform is very challenging and needs more effort and strategy on how to use and utilize the resources effectively as such it can achie...
发表评论
阅读全文