Abstract
AbstractFollowing the strategy of using polyfunctional phosphonic acids for the synthesis of three‐dimensional metal phosphonates, the ethyl ester of a tetraphosphonic acid, i. e. 1,2,4,5‐(Et2O3PCH2)4C6H2, was used in the hydrothermal synthesis of the new copper tetraphosphonate, Cu2[(HO3PCH2)4C6H2]·2H2O (1). The in situ hydrolysis of the ethyl ester leads to the acid (1,2,4,5‐(H2O3PCH2)4C6H2) which reacts with the Cu2+ ions to form the green coarse‐crystalline product. The title compound is the first fully characterized copper tetraphosphonate. Its structure was solved from single crystal data (1: triclinic, $\rm P{\bar 1}$, a = 4.9262(10), b = 8.1890(16), c = 11.800(2) Å, α = 71.17(3), β = 89.15(3), γ = 88.56(3)°, V = 450.39(16) Å3, Z = 2, R1 = 0.0284, wR2 = 0.0682). The structure is built up from edge‐sharing CuO5 polyhedra each containing a single H2O molecule. Thus, dimeric [Cu2O8] units are formed. In the second coordination sphere of each of the Cu2+ ions four HO3PCH2R units are observed. The [Cu2O8] polyhedra are connected to eight other [Cu2O8] polyhedra by these organic linkers and a three‐dimensional framework structure is formed. Thermogravimetric, magnetic, and temperature dependent powder XRD measurements and the Raman‐spectrum are also presented.
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Dates
Type | When |
---|---|
Created | 17 years, 5 months ago (March 4, 2008, 9:56 a.m.) |
Deposited | 1 year, 10 months ago (Oct. 17, 2023, 1:38 p.m.) |
Indexed | 1 year, 7 months ago (Jan. 18, 2024, 11:25 a.m.) |
Issued | 17 years, 5 months ago (March 4, 2008) |
Published | 17 years, 5 months ago (March 4, 2008) |
Published Online | 17 years, 5 months ago (March 4, 2008) |
Published Print | 17 years, 4 months ago (April 1, 2008) |
@article{Kaempfe_2008, title={Synthesis and Characterization of the New Copper Tetraphosphonate Cu2[(HO3PCH2)4C6H2]·2H2O}, volume={634}, ISSN={1521-3749}, url={http://dx.doi.org/10.1002/zaac.200700460}, DOI={10.1002/zaac.200700460}, number={4}, journal={Zeitschrift für anorganische und allgemeine Chemie}, publisher={Wiley}, author={Kaempfe, Paulina and Stock, Norbert}, year={2008}, month=mar, pages={714–717} }