title: Dimension Increase via Hierarchical Hydrogen Bonding from Simple Pincer-like Mononuclear complexes.
abstract: A tetradentate symmetric ligand bearing both coordination and hydrogen bonding sites, N(1),N(3)-bis(1-(1H-benzimidazol-2-yl)-ethylidene)propane-1,3-diamine (H2bbepd) was utilized to synthesize a series of transition metal complexes, namely [Co(H2bbepd)(H(2)O)2]·2ClO(4) (1), [Cu(H2bbepd)(OTs(-))]·OTs(-) (2),[Cu(bbepd)(CH(3)OH)] (3), [Cd(H(2)bbepd)(NO3)2]·CH(3)OH (4), [Cd(H(2)bbepd)(CH(3)OH)Cl]·Cl (5), and [Cd(bbepd)(CH(3)OH)2] (6). These complexes show similar discrete pincer-like coordination units, possessing different arrangements of hydrogen bonding donor and acceptor sites. With or without the aid of uncoordinated anions and solvent molecules, such mononuclear units have been effectively involved in the construction of hierarchical hydrogen bonding assemblies (successively via level I and level II), leading to discrete binuclear ring (complex 2), one-dimensional chain or ribbon (complexes 3, 4 and 6) and two-dimensional layer (complexes 1 and 5) aggregates.
authors.affiliation: MOE Laboratory of Bioinorganic and Synthetic Chemistry State Key Laboratory of Optoelectronic Materials and Technologies Lehn Institute of Functional Materials School of Chemistry and Chemical Engineering Sun Yat-Sen University, Guangzhou 510275, China; School of Chemistry and Environment South China Normal University Guangzhou 510006, China.
authors.forename: Sheng-Run
authors.initials: SR
authors.lastname: Zheng
authors.affiliation: MOE Laboratory of Bioinorganic and Synthetic Chemistry State Key Laboratory of Optoelectronic Materials and Technologies Lehn Institute of Functional Materials School of Chemistry and Chemical Engineering Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Jun-Ya
authors.initials: JY
authors.lastname: Hou
authors.affiliation: MOE Laboratory of Bioinorganic and Synthetic Chemistry State Key Laboratory of Optoelectronic Materials and Technologies Lehn Institute of Functional Materials School of Chemistry and Chemical Engineering Sun Yat-Sen University, Guangzhou 510275, China; State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences, Fuzhou 350002, China. panm@mail.sysu.edu.cn.
authors.forename: Mei
authors.initials: M
authors.lastname: Pan
authors.affiliation: MOE Laboratory of Bioinorganic and Synthetic Chemistry State Key Laboratory of Optoelectronic Materials and Technologies Lehn Institute of Functional Materials School of Chemistry and Chemical Engineering Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Shao-Yun
authors.initials: SY
authors.lastname: Yin
authors.affiliation: MOE Laboratory of Bioinorganic and Synthetic Chemistry State Key Laboratory of Optoelectronic Materials and Technologies Lehn Institute of Functional Materials School of Chemistry and Chemical Engineering Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Wu
authors.affiliation: MOE Laboratory of Bioinorganic and Synthetic Chemistry State Key Laboratory of Optoelectronic Materials and Technologies Lehn Institute of Functional Materials School of Chemistry and Chemical Engineering Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Lu-Yin
authors.initials: LY
authors.lastname: Zhang
authors.affiliation: MOE Laboratory of Bioinorganic and Synthetic Chemistry State Key Laboratory of Optoelectronic Materials and Technologies Lehn Institute of Functional Materials School of Chemistry and Chemical Engineering Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Cheng-Yong
authors.initials: CY
authors.lastname: Su
mesh_terms: D002104:Cadmium / Q000737:chemistry; D003300:Copper / Q000737:chemistry; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding
chemical_list: D002104:Cadmium; D003300:Copper