Photoluminescent chromium molybdate cluster coordinated with rare earth cations: synthesis, structure, optical and magnetic properties

The Anderson–Evans cluster, {CrMo6O24}n−, exhibits ruby-like red emission. During our attempts to engineer new photoluminescent crystals using chromium molybdate as a molecular building block, we isolated four new rare-earth based chromium molybdates: [Gd(H2O)7{CrMo6(OH)6O18}]·4H2O, 1, (4-pycH)[Gd(H2O)4{CrMo6(OH)6O18}(4-pycH)]·5H2O, 3, and (4-pycH)2[Ln(H2O)6{CrMo6(OH)6O18}]·2H2O, (Ln = Tb, 4 and Sm, 5; H4-pyc = 4-pyridine carboxylic acid and 4-pycH = 4-pyridinium carboxylate). All are nonmolecular solids characterized by extended 1-D or 2-D interactions between rare-earth ions and the chromium molybdate cluster. All solids showed intense room-temperature Cr3+ related red emission and also exhibited weak antiferromagnetism at low temperatures.

[1]  G. Vijaya Prakash,et al.  Optical studies of Sm³⁺ ions doped zinc alumino bismuth borate glasses. , 2014, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

[2]  A. Ramanan,et al.  Crystal Engineering of Anderson–Evans Cluster Based Salts Through N–H···O Interactions , 2014 .

[3]  J. Marrot,et al.  Molybdenum Bisphosphonates with Cr(III) or Mn(III) Ions , 2014, Journal of Cluster Science.

[4]  Subrata Das,et al.  Optical properties of Tb3+ doped KLaF4 in cubic and hexagonal symmetries , 2013 .

[5]  W. Cao,et al.  1-D helical chain, 2-D layered network and 3-D porous lanthanide–organic frameworks based on multiple coordination sites of benzimidazole-5,6-dicarboxylic acid: synthesis, crystal structure, photoluminescence and thermal stability , 2013 .

[6]  G. Prakash,et al.  KCa4(BO3)3:Ln3+ (Ln = Dy, Eu, Tb) phosphors for near UV excited white–light–emitting diodes , 2013 .

[7]  Jingping Wang,et al.  Three organic–inorganic hybrid B-Anderson polyoxoanions as building blocks: syntheses, structures, and characterization of [(C6H5NO2)2Ln(H2O)6](CrMo6O24H6)·2C6H5NO2·6H2O (Ln = Sm, Dy, Er) , 2013 .

[8]  Zhengbo Han,et al.  Assembling Anderson-type polyoxometalates with manganese(II) in the presence of pyridylacrylic acid ligands: a 2D layer and two polymorphs , 2011 .

[9]  A. Ramanan,et al.  Crystal Engineering of Polyoxomolybdates Based Metal–Organic Solids: The Case of Chromium Molybdate Cluster Based Metal Complexes and Coordination Polymers , 2011 .

[10]  Rui Ran,et al.  Hydrothermal synthesis and characterization of a new Anderson-type polyoxometalate , 2011 .

[11]  Xiaoshu Qu,et al.  Tris(morpholinium) hexa-μ3-hydroxido-hexa-μ2-oxido-dodecaoxidohexamolybdenum(VI)chromate(III) tetrahydrate , 2011, Acta crystallographica. Section E, Structure reports online.

[12]  Ya-Guang Chen,et al.  Two extended architectures formed by Anderson-type polyoxometalates and Zr4+/Ce3+–1,2-diaminoethanetetraacetate complexes , 2011 .

[13]  A. Ramanan,et al.  Oxalate Bridged Copper Pyrazole Complex Templated Anderson-Evans Cluster Based Solids , 2011 .

[14]  Shuxia Liu,et al.  Two large ionic crystals: Both their anions and cations constructed by Anderson-type POM-supported transition metal complex , 2011 .

[15]  Yang-guang Li,et al.  New class of organic-inorganic hybrid aggregates based on polyoxometalates and metal-Schiff-base. , 2011, Dalton transactions.

[16]  S. Lofland,et al.  Crystallization of Anderson−Evans Type Chromium Molybdate Solids Incorporated with a Metal Pyrazine Complex or Coordination Polymer , 2010 .

[17]  E. Wang,et al.  New synthetic route of polyoxometalate-based hybrids in choline chloride/urea eutectic media , 2010 .

[18]  Huiyuan Ma,et al.  Hydrothermal synthesis of two Anderson POM-supported transition metal organic–inorganic compounds , 2010 .

[19]  Haijun Pang,et al.  A series of compounds based on the Anderson-type polyoxoanions and Cu-amino acid complexes , 2009 .

[20]  Y. Liu,et al.  Synthesis and characterization of B-type Anderson polyoxoanions supported copper complexes with mixed ligands , 2009 .

[21]  Z. Su,et al.  Organic–inorganic hybrids constructed by Anderson-type polyoxoanions and copper coordination complexes , 2009 .

[22]  Y. Liu,et al.  Hydrothermal assembly and luminescence property of lanthanide-containing Anderson polyoxometalates , 2008 .

[23]  E. Wang,et al.  Synthesis and Characterization of Two Extended High-dimensional Architectures Formed by Transition Metal–Glycine Complexes , 2008 .

[24]  Y. Liu,et al.  Influence of different site symmetries of Eu3+ centers on the luminescence properties of Anderson-based compounds , 2008 .

[25]  Ya-Guang Chen,et al.  Self-Assembly of Polyoxometalate-Supported Ln-H nydroxo/Oxo Clusters with 1D Extended Structure: [LnIII(H2O)7Cr(OH)6Mo6O18]n·4nH2O (Ln = Ce, Sm, Eu) , 2008 .

[26]  L. Hou,et al.  A new inorganic–organic hybrid compound constructed from polyoxoanions and rare earth coordination complexes , 2006 .

[27]  Jingping Wang,et al.  [Na3(H2O)11][CrMo6O24H6]·2H2O, with an Anderson B‐type heteropolyoxoanion , 2006 .

[28]  H. Yashiro,et al.  Regular two-dimensional molecular array of photoluminescent Anderson-type polyoxometalate constructed by Langmuir-Blodgett technique. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[29]  A. Selskis,et al.  Effect of Cr(III) solution chemistry on electrodeposition of chromium , 2006 .

[30]  Samar K. Das,et al.  Polyoxometalate-supported transition metal complexes and their charge complementarity: synthesis and characterization of [M(OH)6Mo6O18[Cu(Phen)(H2O)2]2][M(OH)6Mo6O18[Cu(Phen)(H2O)Cl]2].5H2O (M = Al(+, Cr3+). , 2005, Inorganic chemistry.

[31]  Yang-guang Li,et al.  Synthesis and characterization of two new extended structures based on Anderson-type polyoxoanions , 2005 .

[32]  Yang-guang Li,et al.  Self-assembly of a series of extended architectures based on polyoxometalate clusters and silver coordination complexes. , 2005, Inorganic chemistry.

[33]  Yang-guang Li,et al.  A series of new polyoxoanion-based inorganic-organic hybrids: (C6NO2H5)[(H2O)4(C6NO2H5)Ln(CrMo6H6O24)]·4H2O (Ln = Ce, Pr, La and Nd) with a chiral layer structure , 2005 .

[34]  Yang-guang Li,et al.  Open‐Framework Polar Compounds: Synthesis and Characterization ofRare‐Earth Polyoxometalates (C6NO2H5)2[Ln(H2O)5(CrMo6H6O24)]·0.5H2O (Ln = Ce and La) , 2005 .

[35]  M. Garland,et al.  Structural and magnetic properties of Ln(III) complexes with diimines and crotonato as a bridging ligand , 2004 .

[36]  Changwen Hu,et al.  A novel organic¿inorganic hybrid with Anderson type polyanions as building blocks: [(Gly) 2 Cu][Na(H 2 O) 4 Cr(OH) 6 Mo 6 O 18 ] · 9.5H 2 O (Gly=glycine) , 2004 .

[37]  J. Krupa,et al.  Luminescence study of new Ln(III) compounds formed with Anderson’s heteropolyanions Al(OH)6Mo6O183− and Cr(OH)6Mo6O183− , 2002 .

[38]  J. Krupa,et al.  Energy transfer in europium and terbium compounds formed with [Cr(OH)6Mo6O18]3- and [Cr0.1Al0.9(OH)6Mo6O18]3- heteropolyanions , 2002 .

[39]  S. Decurtins,et al.  MOLECULAR CHROMIUM(III)-LANTHANIDE(III) COMPOUNDS (LN = LA, CE, PR, ND) WITH A POLYMERIC, LADDER-TYPE ARCHITECTURE : A STRUCTURAL AND MAGNETIC STUDY , 1998 .

[40]  P. Molinié,et al.  Preparation, Crystal Structures, and Magnetic and ESR Properties of Molecular Assemblies of Ferrocenium Derivatives and Paramagnetic Polyoxometalates , 1998 .

[41]  T. Yamase,et al.  Charge-transfer photoluminescence of polyoxo-tungstates and -molybdates , 1993 .

[42]  J. Heber,et al.  Renata Reisfeld und Christian H. Jørgensen: Lasers and Excited States of Rare Earths, Bd. 1 der Reihe: “Inorganic Chemistry Concepts”. Springer‐Verlag, Berlin, Heidelberg, New York 1977. 226 Seiten, Preis: DM 64,–, $ 29,50. , 1978 .

[43]  A. Perloff.  Crystal structure of sodium hexamolybdochromate(III) octahydrate, Na3(CrMo6O24H6).8H2O , 1970 .