Di(4-pyridyl) Sulfoxide as an Angled Building Block for Zigzag-Chain Silver(I) Complexes Stabilized by Supramolecular O=S center dot center dot center dot Interactions
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香港中文大學研究人員

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摘要The angled ligand di-4-pyridyl sulfoxide (L1) and five of its silver(I) complexes that bear various counteranions, namely, {[Ag(L1)](BF4)center dot(CH3CN)} (1), {[Ag(L1)(CF3SO3)]center dot(CH3CN)} (2), {[Ag(L1)(CF3CO2)]center dot CH3CN} (3), {[Ag(L1)(NO3)]center dot H2O} (4), and {[Ag2(L1)2(SO4)]center dot 6H2O} (5), have been synthesized and characterized by X-ray crystallography, FTIR spectroscopy, elemental analysis, and luminescent emission measurements. Complexes 15 exhibit a common [Ag(L1)]nn+ zigzag-chain motif generated by the 2-N,N-bridging L1 ligand. The common dominant intermolecular O=S(sulfinyl)center dot center dot center dot(pyridyl) interaction with the S=O group embraced by the pyridyl wings of an adjacent butterfly-like L1 ligand plays a crucial role in the supramolecular aggregation of 15. Replacement of the sulfinyl (S=O) group of L1 by a sulfonyl (O=S=O) group to yield related ligand L2 led to {[Ag(L2)](NO3)} (6) (L2 = di-4-pyridyl sulfone), which exhibits a markedly different supramolecular architecture from those of 15 because of the absence of the O=S(sulfinyl)center dot center dot center dot(pyridyl) contact. Density functional calculations confirm that there is a orbital interaction between the sulfinyl S atom and the intermolecular pyridyl rings, which significantly contributes to the O=S center dot center dot center dot affinity.
著者Wan CQ, Wang ZW, Wang G, Li AM, Jin QH, Deng YH, Mak TCW
期刊名稱European Journal of Inorganic Chemistry
出版年份2013
月份5
日期1
期次14
出版社Wiley-VCH Verlag
頁次2591 - 2600
國際標準期刊號1434-1948
電子國際標準期刊號1099-0682
語言英式英語
關鍵詞Metalorganic frameworks; Pi interactions; Silver; Supramolecular chemistry
Web of Science 學科類別Chemistry; Chemistry, Inorganic & Nuclear; CHEMISTRY, INORGANIC & NUCLEAR

上次更新時間 2020-17-10 於 01:22