11 research outputs found
Design of lanthanide metal organic frameworks incorporating dicarboxylate ligands
International audienc
Supramolecular architecture based on [Fe(CN)6]3− metallotectons and melaminium synthons
International audienc
Structural and Magnetocaloric Properties of ErFe 2 . 4 Al 0 . 6 Compound
International audienc
Synthesis and Crystal Structures of Various Phases of the Microporous Three-Dimensional Coordination Polymer [Zr(OH)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)]<sub><i>n</i></sub>
A homometallic
Zr(IV)-oxalate three-dimensional (3-D) coordination
polymer of formula [Zr(OH)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)·0.5H<sub>2</sub>O] is reported. This compound was found to be a microporous
solid with reversible sorption abilities. Upon guest release and sorption,
the crystalline material undergoes single crystal to single crystal
transitions. The crystal structures for three phases have been solved
from single crystal diffraction studies. They consist of the guest
containing frameworks [Zr(OH)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)·0.5H<sub>2</sub>O], <b>1</b>,<b> 3</b>,
and the guest-free porous phase [Zr(OH)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)], <b>2</b>; all are found with tetragonal space group <i>I</i>4/<i>m</i>. Phase <b>1</b> has been obtained
by controlled diffusion of the reagents (ZrO(NO<sub>3</sub>)<sub>2</sub> and H<sub>2</sub>C<sub>2</sub>O<sub>4</sub>) in a silica gel medium;
the other phases have been formed from <b>1</b> by thermal activation
(<b>2</b>) and re-adsorption of H<sub>2</sub>O (<b>3</b>)
Synthesis and Crystal Structures of Various Phases of the Microporous Three-Dimensional Coordination Polymer [Zr(OH)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)]<sub><i>n</i></sub>
A homometallic
Zr(IV)-oxalate three-dimensional (3-D) coordination
polymer of formula [Zr(OH)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)·0.5H<sub>2</sub>O] is reported. This compound was found to be a microporous
solid with reversible sorption abilities. Upon guest release and sorption,
the crystalline material undergoes single crystal to single crystal
transitions. The crystal structures for three phases have been solved
from single crystal diffraction studies. They consist of the guest
containing frameworks [Zr(OH)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)·0.5H<sub>2</sub>O], <b>1</b>,<b> 3</b>,
and the guest-free porous phase [Zr(OH)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)], <b>2</b>; all are found with tetragonal space group <i>I</i>4/<i>m</i>. Phase <b>1</b> has been obtained
by controlled diffusion of the reagents (ZrO(NO<sub>3</sub>)<sub>2</sub> and H<sub>2</sub>C<sub>2</sub>O<sub>4</sub>) in a silica gel medium;
the other phases have been formed from <b>1</b> by thermal activation
(<b>2</b>) and re-adsorption of H<sub>2</sub>O (<b>3</b>)
The solid solution (Fe0.81Al0.19)(H2PO4)3 with a strong hydrogen bond
A sample of synthetic (Fe0.81Al0.19)(H2PO4)3 was prepared by hydrothermal methods in order to determine the crystal structure. The compound is a new monoclinic variety (γ-form) and the structure is based on a two-dimensional framework of distorted corner-sharing MO6 (M = Fe, Al) polyhedra sharing corners with PO4 tetrahedra
Crystal Growth and Structural Characterization of a Thiocyanato-Bridged Copper(I/II) Mixed-Valence Coordination Polymer
Structural and Magnetocaloric Properties of ErFe 2 . 4 Al 0 . 6 Compound
International audienc