New types of di-, tetra-, hexa- and octanuclear Ag(I) complexes containing 1,3-adamantanedicarboxylic acid

作者：Jin Jun Cheng; Wang Yao Yu^*; Zhang Wei Hong; Lermontov Anatoly S; Lermontova Elmira Kh; Shi Qi Zhen

来源：Dalton Transactions, 2009, (46): 10181-10191.

DOI：10.1039/b909309e

This article represents a systematical investigation on the structures of silver(I) dicarboxylate incorporating secondary ligands, revealing that the secondary interactions could play an important role in interlinking low-dimensional entities to high-dimensional supramolecular frameworks. A new 2D silver(I) crystalline dicarboxylate, {[Ag(6)(ADC)(3)(H(2)O)(1.5)](2)center dot 5.18H(2)O}(n) (1) (H(2)ADC = 1,3-adamantanedicarboxylic acid), has been obtained by slow diffusion of corresponding precursors. To investigate the influence of the properties of pyridylic neutral ligands on the complex structures based on compound 1, five kinds of neutral ligands (bipy = 4,4'-bipyridine; bpa = 1,2-bis(4-pyridyl)ethane; bpe = 1,2-bis(4-pyridyl) ethene; bpp = 1,3-bis(4-pyridyl) propane; bpdap = N, N'-bis(3-pyridyl)-2,6-diaminopyridine) were selected, and a series of new silver(I) dicarboxylate have been synthesized: {[Ag(bpa)(HADC)]}(n) (2), {[Ag(bpp)(HADC)]center dot CH(3)OH}(n) (3), {[Ag(4)(bpe)(3)(ADC)(2)]center dot 2H(2)O}(n) (4), {[Ag(bipy)(HADC)]center dot H(2)O}(n) (5), {[Ag(2)(bipy)(2)(ADC)]center dot 6H(2)O}(n) (6), and [Ag(8)(bpdap)(4)(ADC)(4)]center dot 2C(2)H(5)OH center dot 6H(2)O (7). Single-crystal X-ray structural analysis shows that complexes 1 and 4 are formed by hexanuclear and tetranuclear Ag(I) clusters with weak Ag-Ag interactions. Complexes 2 and 3 are dinuclear structures, 5 and 6 exhibit an infinite 1D chain structure, whereas 7 is a discrete octanuclear Ag(I) unit. The structures of 1-7 span from dinuclear, tetranuclear, hexanuclear, to octanuclear Ag(I) complexes, which indicates that secondary ligands do play important roles in the formation of such coordination architectures. Thermal stability, X-ray powder diffraction and luminescent properties of the compounds are also discussed.

• 出版日期2009
• 单位西北大学