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Two novel metal-organic frameworks, [Cd(Bna)(DMF)(HO)] · nDMF (I) (Bna = 2,2′-dihydroxy-l,l′-dinaphthyl-3,3′-dicarboxylate) and [Cd(Bna)(Bipy)(DMF)] ( II) (Bipy = 4,4′-bipyridine) have been synthesized under mild conditions and structurally characterized. Crystal structural analyses reveal that complex I adots a 1D spiral structure with DMF guest molecules in the spiral by hydrogen bondings. Complex II is constructed by -Cd-Bna-Cd- zigzag chains, which are further connected by Bipy into a 2D sheet. X-ray powder diffraction and thermogravimetric analyses for I and II show that they are highly themally stable in the solid state. [ABSTRACT FROM AUTHOR]

This article focuses on a study that was conducted to determine the comparative inhibition effect of some structurally diverse substituted phenols on the germination rate of Cucumis sativus. All tested chemicals were provided by Department of Chemistry, Nanjing University and seeds of Cucumis sativus were purchased commercially. The result indicated that hydrophobicity, electrophilicity and hydrogen bond interaction were three most significant toxicity influencing factors. The combination of these three parameters constructed a highly predictive multiple- variable QSAR (quantitative structure-activity relationships) model, which gave accurate prediction of all tested phenols.