Syntheses, crystal structures, thermal stabilities and luminescence of two new zinc phosphonates.

نویسندگان

  • Ruibiao Fu
  • Shengmin Hu
  • Xintao Wu
چکیده

Two new zinc phosphonates, [(C5H14N2)0.5Zn5(HO3PCH(OH)CO2)(O3PCH(OH)CO2)3 x 2 H2O] x 2 H2O (1) and [(C4H12N2)Zn2(O3PCH(OH)CO2)2] (2), have been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction along with powder XRD, elemental analysis (EA), IR, and thermogravimetric analysis (TGA). In compound 1, [ZnO6] octahedra and [ZnO5] square-pyramids are bridged by 2-hydroxyl(phosphono)acetate with tri-, tetra-, and pentadentate coordination modes, resulting in a 3D framework possessing 1D 24-atom channels. In compound 2, 2-hydroxyl(phosphono)acetate exhibits a new tridentate coordination mode to link [ZnO4] tetrahedrons into a 2D hybrid layer. Both 2-methylpiperazine and piperazine serve as structure-directing agents, which are encapsulated into frameworks through electrostatic interactions and hydrogen bonding. Solids 1 and 2 display purple and yellow-green emission, respectively. It is interesting that solid 1 can give off bright white, yellow and orange-red emission under different heat-treatment temperatures. Furthermore, the luminescent color of solid 1-250 can be reversibly tuned among yellow-green, purple-blue, bright white and blue-green by shifting the wavelength of excited light.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Syntheses, crystal structures, thermal stabilities, luminescence and magnetism of two 3D pillared metal phosphonates.

Two pillared metal phosphonates: [Mn3(4,4'-bipy)(L)2].(4,4'-bipy)0.5 (1) and [Co3(4,4'-bipy)(H2O)2(L)2].(4,4'-bipy)0.5 (2) (L = O3PCH(OH)CO2), have been synthesized hydrothermally, and characterized by single-crystal X-ray diffraction along with powder XRD, EA, IR and TGA. In compounds 1-2, Mn(II) and Co(II) ions are in octahedron coordination geometries and bridged by 2-hydroxyl(phosphono)acet...

متن کامل

Binuclear Nickel(II) Complex Containing 6-Methyl-2,2'-bipyridine and Chloride Ligands: Synthesis, Characterization, Thermal Analyses, and Crystal Structure Determination

A new binuclear complex of [{NiCl(6-mbipy)}2(μ-Cl)2] (1) was prepared from the reaction of NiCl2.6H2O and 6-methyl-2,2'-bipyridine (6-mbipy)  in a mixture of methanol and acetonitrile. Suitable crystals of 1 for X-ray diffraction measurement were obtained by slow evaporation of the resulted green solution at room ...

متن کامل

Lanthanide(III) oxalatophosphonates: syntheses, crystal structures and luminescence properties.

By the introduction of oxalate as the second ligand, five new lanthanide oxalatophosphonate hybrids with a 2D layered structure, namely, [Ln(H2L)(C2O4)(H2O)]·2H2O [Ln = Nd (1), Sm (2), Eu (3), Tb (4), Dy (5), H3L = H2O3PCH2NCH2(CH2CH2OPO2H)], have been hydrothermally synthesized and structurally characterized by X-ray single-crystal diffraction, X-ray powder diffraction, infrared spectroscopy, ...

متن کامل

FABRICATION AND CHARACTERIZATION OF POLYANILINE-GRAPHENE COMPOSITE AS ELECTRODE IN ELECTROCHEMICAL CAPACITOR

In this study, polyaniline-graphene composites with different nano-structures are synthesized and the behaviour of the obtained composites serving as electrode materials in electrochemical capacitors is studied. The morphology, crystal structure, and thermal stability of the composites are examined using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Thermal gravimetric analys...

متن کامل

Syntheses, Crystal Structures and Thermal Behaviors of Two Supramolecular Salamo-Type Cobalt(II) and Zinc(II) Complexes

This paper reports the syntheses of two new complexes, [Co(L)(H2O)2] (1) and [{Zn(L2) (μ-OAc)Zn(n-PrOH)}2] (2), from asymmetric halogen-substituted Salamo-type ligands H2L and H3L, respectively. Investigation of the crystal structure of complex 1 reveals that the complex includes one Co(II) ion, one (L1)2− unit and two coordinated water molecules. Complex 1 shows slightly distorted octahedral c...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Dalton transactions

دوره 43  شماره 

صفحات  -

تاریخ انتشار 2009