Group 12 Metal Complexes of Semirigid 2,6-Pyridinediylbis(3-pyridinyl)methanone: Role of Counteranions and Solvent in Product Formation
Publication in refereed journal

香港中文大學研究人員

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摘要In a series of nine group 12 metal complexes of 2,6-pyridinediylbis(3-pyridinyl)-methanone (abbreviated as L), namely, [Cd(L)(2)Cl-2] (1), [Cd(L)(2)(NO3)(2)]center dot 3.5H(2)O (2), [Cd(L)(2)-(H2O)(2)](NO3)(2) (3), [Cd(L)(2)(H2O)(2)](ClO4)(2)center dot H2O (4), {[C(L)(H2O)(2)](ClO4)(2)center dot 1.5H(2)O}(infinity) (5), {[Cd(L)(2)SO4(H2O)]center dot 2.8H(2)O}(infinity) (6), [Cd(L)(2)(CH3CO2)(2)](infinity) (7), [zn(L)(2)(CH3CO2)(2)](infinity) (8), and [Hg(L)(2)(CH3CO2)(2)](infinity) (9), the semirigid multidentate ligand L exhibits flexible ligation modes I-IV in response to the cooperative effect of counteranions and solvent medium, leading to mononuclear (1-4), helical-chain (6), zigzag-chain (7), and 3D net (5) coordination motifs. The presence of the ancillary aqua ligand is essential for the crystallization of 3 and 5 by addition of deionized water to an organic mixed-solvent medium containing 2 and 4, respectively. The acetate complexes 7 (Cd2+), 8 (Zn2+), and 9 (Hg2+) are isostructural. Unconventional anion-pi(pyridine), C=O center dot center dot center dot C=O, O(NO3-/ClO4-)center dot center dot center dot C=O, and cohesive nitrate center dot center dot center dot nitrate interactions are manifested in supramolcular aggregations of the present series of crystalline complexes.
著者Wan CQ, Li AM, Al-Thabaiti SA, Mak TCW
期刊名稱Crystal Growth and Design
出版年份2013
月份5
日期1
卷號13
期次5
出版社American Chemical Society
頁次1926 - 1936
國際標準期刊號1528-7483
電子國際標準期刊號1528-7505
語言英式英語
Web of Science 學科類別Chemistry; Chemistry, Multidisciplinary; CHEMISTRY, MULTIDISCIPLINARY; Crystallography; CRYSTALLOGRAPHY; Materials Science; Materials Science, Multidisciplinary; MATERIALS SCIENCE, MULTIDISCIPLINARY

上次更新時間 2020-27-10 於 00:30