New Low-Dimensional Zinc Compounds Containing Zinc-Oxygen-Phosphorus Frameworks: Two-Layered Inorganic Phosphites and a Polymeric Organic Phosphinate

Minghuey Shieh, Kevin J. Martin, Philip J. Squattrito, Abraham Clearfield

研究成果: 雜誌貢獻期刊論文同行評審

61 引文 斯高帕斯(Scopus)

摘要

Two new zinc phosphites have been prepared by reaction of zinc chloride with either calcium or strontium phosphite in aqueous phosphorous acid. The compounds have been characterized by single-crystal X-ray diffraction techniques. ZnCa(HPO3)2(H2O)2: P21/n, a = 7.131 (2) Å, b = 7.766 (2) Å, c = 14.479 (2) Å, β = 97.30 (2)°, V= 795.3 (3) Å3, Z = 4, R(F0) = 0.045 for 1063 observations (I > 3σ(I)) and 109 variables. ZnSr(HPO3)2(H2O)2: {formula-omited}, a = 7.728 (2) Å, b = 7.967 (2) Å, c = 7.448 (2) Å, α = 99.56 (2)°, β = 107.93 (2)°, γ = 100.51 (2)°, V= 416.6 (2) Å3, Z = 2, R(F0) = 0.034 for 1187 observations (I> 3σ(I)) and 109 variables. Both compounds have layered structures in which the zinc atoms are tetrahedrally coordinated and the Ca or Sr atoms are 8-coordinate. In each case, the interlayer region is lined with water molecules coordinated to the alkaline-earth-metal Ion. The modes in which Ca and Sr bridge the phosphite groups are different, however, resulting in layers with different topographies. These results, together with earlier work on Na+, K+, and Ba2+, are discussed in terms of the effect of the alkali or alkaline-earth metals on the observed structural trends. A new polymeric zinc phenylphosphinate has also been synthesized and its structure determined. Crystal data for ZnO2PHC6H5)2: C2/c, a = 15.763 (2) Å, b = 11.162 (2) Å, c = 8.272 (2) Å, β = 109.34 (2)°, V = 1373.2 (6) Å3, Z = 4, R(F0) = 0.047 for 480 observations (I > 3σ(I)) and 105 variables. The structure is compared with known phosphinates and phosphonates.

原文英語
頁(從 - 到)958-963
頁數6
期刊Inorganic Chemistry
29
發行號5
DOIs
出版狀態已發佈 - 1990 一月 1

ASJC Scopus subject areas

  • 物理與理論化學
  • 無機化學

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