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 SM ISO690:2012COJOCARI, Tatiana, AMBRUS, Christina, ADAMS, Harry, BACA, Svetlana, DECURTINS, Silvio. Cobalt(II) and copper(II) coordination compounds based on phthalic acid: synthesis, crystal structure and properties. In: Physical Methods in Coordination and Supramolecular Chemistry, 27 septembrie - 1 octombrie 2006, Chişinău. Chisinau, Republic of Moldova: 2006, XVII, p. 115. ISBN 978-9975-62-066-6. |
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| Physical Methods in Coordination and Supramolecular Chemistry XVII, 2006 |
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Conferința "The XV-th International Conference Physical Methods in Coordination and Supramolecular Chemistry : The XVII-th Reading in memory of Acad. A.Ablov" Chişinău, Moldova, 27 septembrie - 1 octombrie 2006 | ||||||
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The o-phthalate anion (Pht2-) is a well-known versatile ligand, which has been extensively used in the design of coordination compounds due to a variety of its bonding abilities. New copper(II) and cobalt(II) phthalates [Co(Pht)(H2O)4](NH2-PyH)2·3H2O (1) and [Cu(Pht)(NH2-Py)2]n ( 2) (where NH2-Py – 4-aminopyridine) have been synthesized and characterized by IR spectroscopy, thermogravimetric analysis and magnetic studies. Crystallographic analysis revealed that 1 contains two crystallographically independent [Co(Pht)2(H2O)4]2- anions, two protonated NH2-Py molecules as well as three lattice water molecules (Fig. 1). The crystal structure of 2 consists of [Cu(NH2-Py)2] building units linked in infinite 1D helical chains by bridging phthalate ions (Fig. 2).figureFig. 1. The structure of [Co(Pht)2(H2O)4]2unit.Fig. 2. A fragment of the helical polymeric chain in compound 2.The Pht2- anion behaves as a monodentate ligand coordinating to Co(II) atom through oxygen atom from one carboxylate group in 1, whereas in complex 2 it is a tridentate ligand using one carboxylate group to coordinate to the Cu(II) atom in a monodentate fashion and the other carboxylate group to ligate the adjacent metal in a 1,3-chelating mode. |
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