A mesitylene-bridged bis-benzimidazolyl ligand and six metal coordination compounds

作者：Liu, Qing-Xiang^*; Ding, Yue; Zhao, Xiao-Qiang; Zhao, Zhi-Xiang; Yu, Jie; Wang, Jian-Hua

来源：Journal of Coordination Chemistry, 2016, 69(20): 3053-3071.

DOI：10.1080/00958972.2016.1219349

• Metal
• complex
• structure
• bis-benzimidazole

The mesitylene-bridged bis-benzimidazolyl ligand 1,3-bis(benzimidazol-1-yl-methyl)mesitylene (L) and six metal complexes, [Cu9L6(OH)(7)Cl-8] (1), [Co2L4(NO3)(H2O)(2)](NO3)(3) (2), [Zn2L2Cl4] (3), [CdL2(NO3)(2)](n) (4), [MnL(L-A)(CH3OH)](n) (5), and [CoLCl2](n) (6) (L-A=terephthalate), have been prepared and characterized. Complex 1 is a football-like cluster formed by six Ls, nine Cu(II) ions, eight chlorides, and seven hydroxides, in which the size of the football is about 13.9x15.4 angstrom. Complex 2 contains a cage-like ball formed by four Ls and two Co(II) ions, in which the external and internal sizes of the ball are about 12.2x14.6 angstrom and 6.5x10.7 angstrom, respectively. In this complex, one nitrate is fixed in the middle of the cage through two Co-O bonds. The 24-membered metallomacrocycle of 3 is formed by two Ls and two Zn(II) ions. In 4, 2-D layers with 48-membered metallomacrocycles are formed via Ls and Cd(II) ions. In 5, L and terephthalate ions (L-A) participate in coordination with Mn(II) to afford 2-D network layers. The 1-D polymeric chain of 6 is formed via L and Co(II) chloride moieties. In the crystal packing of 1-6, 2-D supramolecular layers and 3-D supramolecular frameworks are formed via intermolecular weak interactions, including hydrogen bonds, - interactions, and C-H contacts. The conformations of metal complexes from L are described. Additionally, the fluorescence emission spectra of L and 1-6 are reported. @@@ Software of Graphics: Ligand L, H2LA and Schemes 1-3: Chem Draw 8.0 Figures 1-6: Diamand 3.0 Figure 7: Origin 8.0 @@@ [GRAPHICS]

• 出版日期2016
• 单位天津师范大学