Self‐assembly of Two 2D Copper(II) Coordination Networks with Tetrachloro‐1, 3‐benzenedicarboxylate: Solvent Effects, Supramolecular Interactions, and Luminescence Behavior. Issue 8 (26th March 2014)

• Record Type: Journal Article
• Authors: Chen, Sheng‐Chun; Wang, Xin‐Xin; Luo, Hai‐Kun; He, Ming‐Yang; Li, Cheng‐Peng; Chen, Qun
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 640:Issue 8/9(2014)
• Page Start: 1810
• Page End: 1815
• Publication Date: 2014-03-26
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.201400049
• Languages: English
• ISSNs: 0044-2313

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Reaction of the rigid ligand 2, 4, 5, 6‐tetrachloro‐1, 3‐benzenedicarboxylic acid (1, 3‐H<sub>2</sub>BDC‐Cl<sub>4</sub>) with copper(II) nitrate in different solvent systems afforded two new complexes {[Cu(1, 3‐BDC‐Cl<sub>4</sub>)(DMF)] (H<sub>2</sub>O)}<italic><sub>n</sub></italic> (<bold>1</bold>) and {[Cu(1, 3‐BDC‐Cl<sub>4</sub>)(H<sub>2</sub>O)<sub>3</sub>] (dioxane)<bold>·</bold>(H<sub>2</sub>O)}<italic><sub>n</sub></italic> (<bold>2</bold>), which were fully characterized by elemental analysis, IR spectroscopy, as well as single crystal and powder X‐ray diffiraction techniques. Single‐crystal X‐ray diffraction reveals that complexes <bold>1</bold> and <bold>2</bold> crystallize in different space groups <italic>P</italic>2<sub>1</sub>/<italic>m</italic> and <italic>Pbca</italic>, respectivly. Compound <bold>1</bold> shows a two‐dimensional (2D) (4, 6)‐connected layered network constructed by the connectivity between one‐dimensional (1D) [–Cu–DMF–COO–]<italic><sub>n</sub></italic> chains and tetrachlorinated backbones of 1, 3‐BDC‐Cl<sub>4</sub>, which is further assembled to generate a three‐dimensional (3D) supramolecular framework through intermolecular O–H<bold>···</bold>O and O–H<bold>···</bold>Cl hydrogen‐bonding interactions. Compound <bold>2</bold> features a 2D 4‐connected <bold>sql</bold> coordination net formed by 1D [Cu‐H<sub>2</sub>O]<italic><sub>n</sub></italic> chains and 1, 3‐BDC‐Cl<sub>4</sub> spacers, which is further extended into a 3D supramolecular network by multiple O–H<bold>···</bold>O hydrogen‐bonding interactions. The different structural features of the two compounds suggest that the choice of solvent systems should play a key role in the process of assembly. Their thermal and fluorescence properties were also investigated.</p> </abstract>