Abstract
Five new metal–organic frameworks prepared from the ligand 5-bis(3-(1-imidazolyl)propylcarbamoyl)terephthalate (bipta2−) and transition metal salts, Zn2+ (1), Co2+ (2), Mn2+ (3, 4) and Cu2+ (5), are reported. Single crystal X-ray studies reveal that the bipta2− ligand acts as a tetradentate ligand and combines with four-coordinate cationic metal nodes to give four-connected framework structures. Whilst reaction of bipta2− with Zn(II) gives rise to a framework of diamondoid topology 1, the analogous frameworks with Co(II), Mn(II) and Cu(II) afford frameworks that incorporate square-planar nodes. Whereas 2 and 5 form frameworks of Cd(SO4) (cds) and square 44 nets (sql), respectively, reaction of Mn(II) with bipta2− forms two supramolecular isomers of topology cds for 3 and sql for 4.
Original language | English |
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Pages (from-to) | 4020-4026 |
Journal | Dalton Transactions |
Volume | 41 |
Issue number | 14 |
DOIs | |
Publication status | Published - 3 Feb 2012 |