CRYSTAL STRUCTURES OF TWO NEW DINUCLEAR Ag(I) COMPLEXES CONSTRUCTED FROM 4,4′-BIPHENYLDICARBOXYLIC ACID AND N-CONTAINING LIGANDS
S.-F. Lou1, X. Zheng2, Y. Chen2, X.-Y. Qiu2
1 Department of Public Subject, Shangqiu Medical College
2 Department of Chemisry, Shangqiu Normal University
loushufang@yahoo.com.cn
Ключевые слова: silver complex, coordination chemistry, crystal structure, self-assembly, hydrogen bonding
Страницы: 1129-1135
Аннотация
The reaction of silver 4,4′-biphenyldicarboxylate with 1,3-diaminopropane (DAP) and 2-amino-5-methylpyridine (AMP) respectively results in the formation of two dinuclear silver(I) complexes: [Ag2(DAP)2](BPC)·2H2O (1) and [Ag2(BPC)(AMP)4]·2H2O (2), where BPC is 4,4′-biphenyldicarboxylate. The complexes are characterized by elemental analysis and X-ray crystallography. Complex 1 crystallizes in the triclinic system, P-1 space group, a = 8.585(2) Å, b = 8.849(2) Å, c = 9.890(3) Å, α = 107.893(3)°, β = 94.139(3)°, γ = 113.202(3)°, V = 640.9(3) Å3, Z = 1. Complex 2 crystallizes in the triclinic system, P-1 space group, a = 11.818(3) Å, b = 13.132(4) Å, c = 13.281(4) Å, α = 92.571(4)°, β = 96.425(3)°, γ = 102.142(4)°, V = 1997.5(10) Å3, Z = 2. Complex 1 consists of a macrocyclic dinuclear silver(I) dication, a 4,4′-biphenyldicarboxylate anion, and two water molecules of crystallization. Each Ag atom is in a linear coordination. Complex 2 consists of a dinuclear silver(I) complex molecule and two water molecules of crystallization. Each Ag atom is in a T-shaped coordination. The Ag⋯Ag separations are 5.127(2) Å in 1 and 3.172(2) Å in 2.
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