TY - JOUR
T1 - New Low-Dimensional Zinc Compounds Containing Zinc-Oxygen-Phosphorus Frameworks
T2 - Two-Layered Inorganic Phosphites and a Polymeric Organic Phosphinate
AU - Shieh, Minghuey
AU - Martin, Kevin J.
AU - Squattrito, Philip J.
AU - Clearfield, Abraham
PY - 1990
Y1 - 1990
N2 - 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.
AB - 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.
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U2 - 10.1021/ic00330a012
DO - 10.1021/ic00330a012
M3 - Article
AN - SCOPUS:0000102173
SN - 0020-1669
VL - 29
SP - 958
EP - 963
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 5
ER -