A Large 24-Membered-Ring Germanate Zeolite-Type Open-Framework Structure with Three-Dimensional Intersecting Channels This work was supported by the NSF of China (Grant No. 29873012 and 29925309), National Education Ministry, State Key Basic Research Program of PRC (G2000048001) Shanghai Science Foundation, and the Key Laboratory of Inorganic Hydrothermal Synthesis, Jilin University. We thank Prof. S. Feng and Dr. Z. Shi for invaluable discussions.

A novel 3-D open-framework zinc borovanadate [Zn6(en)3][(VIVO)6(VVO)6O6(B18O36(OH)6)·(H2O)]2·14H2O (1, en = ethylenediamine) was hydrothermally obtained and structurally characterized. The framework was built from [V12B18O54(OH)6(H2O)]10− polyanion clusters bridged by Zn(en) complex fragments. The compound not only possessed a three-dimensional open-framework structure with unique plane-shaped channels, but also exhibited excellent catalytic activities for the oxidation of α-phenethyl alcohol.

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First chiral fluorinated lead vanadate selenite Pb2(V2O4F)(VO2)(SeO3)3 with five asymmetric motifs and large optical properties

Dalton Transactions ◽

10.1039/d1dt00536g ◽

2021 ◽

Author(s):

Lin Lin ◽

Xingxing Jiang ◽

Chao Wu ◽

Zheshuai Lin ◽

Zhipeng Huang ◽

...

Keyword(s):

Optical Properties ◽

Three Dimensional ◽

Second Order ◽

Framework Structure ◽

Open Framework ◽

Jahn Teller ◽

Lead Vanadate ◽

Open Framework Structure

The first fluorinated lead vanadate selenite Pb2(V2O4F)(VO2)(SeO3)3 was successfully synthesized, featuring a unique three-dimensional open framework structure composed of five kinds of second-order Jahn–Teller susceptible asymmetric motifs.

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Ni3Te2O2(PO4)2(OH)4, an open-framework structure isotypic with Co3Te2O2(PO4)2(OH)4

Acta Crystallographica Section E Crystallographic Communications ◽

10.1107/s2056989020004466 ◽

2020 ◽

Vol 76 (5) ◽

pp. 625-628

Author(s):

Felix Eder ◽

Matthias Weil

Keyword(s):

Three Dimensional ◽

Molar Ratio ◽

Structural Elements ◽

Asymmetric Unit ◽

Framework Structure ◽

Structure Comparison ◽

Open Framework ◽

Medium Strength ◽

Hydroxy Groups ◽

Open Framework Structure

Single crystals of Ni3(TeO(OH)2)2(PO4)2, trinickel(II) bis[(oxidodihydoxidotellurate(IV)] bis(phosphate),were obtained by hydrothermal synthesis at 483 K, starting from NiCO3·2Ni(OH)2, TeO2 and H3PO4 in a molar ratio of 1:2:2. The crystal structure of Ni3Te2O2(PO4)2(OH)4 is isotypic with that of Co3Te2O2(PO4)2(OH)4 [Zimmermann et al. (2011). J. Solid State Chem. 184, 3080–3084]. The asymmetric unit comprises two Ni (site symmetries \overline{1}, 2/m) one Te (m), one P (m), five O (three m, two 1) and one H (1) sites. The tellurium(IV) atom shows a coordination number of five, with the corresponding [TeO3(OH)2] polyhedron having a distorted square-pyramidal shape. The two NiII atoms are both octahedrally coordinated but form different structural elements: one constitutes chains made up from edge-sharing [NiO6] octahedra extending parallel to [010], and the other isolated [NiO2(OH)4] octahedra. The two kinds of nickel/oxygen octahedra are connected by the [TeO3(OH)2] pyramids and the [PO4] tetrahedra through edge- and corner-sharing into a three-dimensional framework structure with channels extending parallel to [010]. Hydrogen bonds of medium strength between the hydroxy groups and one of the phosphate O atoms consolidate the packing. A quantitative structure comparison between Ni3Te2O2(PO4)2(OH)4 and Co3Te2O2(PO4)2(OH)4 is made.

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