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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Poleti, Dejan Rogan, Jelena Rodic, Marko V. Radovanovic, Lidija |
| Description | Author Affiliation: Poleti D ( Department of General and Inorganic Chemistry, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia.); Rogan J ( Department of General and Inorganic Chemistry, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia.); Rodic MV ( Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 3, 21000 Novi Sad, Serbia.); Radovanovic L ( Innovation Center, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia.) |
| Abstract | The novel polymeric complexes catena-poly[[diaquamanganese(II)]-µ-2,2'-bipyrimidine-κ(4)N(1),N(1'):N(3),N(3')-[diaquamanganese(II)]-bis(µ-terephthalato-κ(2)O(1):O(4))], [Mn2(C8H4O4)2(C8H6N4)(H2O)4]n, (I), and catena-poly[[[aquacopper(II)]-µ-aqua-µ-hydroxido-µ-terephthalato-κ(2)O(1):O(1')-copper(II)-µ-aqua-µ-hydroxido-µ-terephthalato-κ(2)O(1):O(1')-[aquacopper(II)]-µ-2,2'-bipyrimidine-κ(4)N(1),N(1'):N(3),N(3')] tetrahydrate], {[Cu3(C8H4O4)2(OH)2(C8H6N4)(H2O)4]·4H2O}n, (II), containing bridging 2,2'-bipyrimidine (bpym) ligands coordinated as bis-chelates, have been prepared via a ligand-exchange reaction. In both cases, quite unusual coordination modes of the terephthalate (tpht(2-)) anions were found. In (I), two tpht(2-) anions acting as bis-monodentate ligands bridge the Mn(II) centres in a parallel fashion. In (II), the tpht(2-) anions act as endo-bridges and connect two Cu(II) centres in combination with additional aqua and hydroxide bridges. In this way, the binuclear [Mn2(tpht)2(bpym)(H2O)4] entity in (I) and the trinuclear [Cu3(tpht)2(OH)2(bpym)(H2O)4]·4H2O coordination entity in (II) build up one-dimensional polymeric chains along the b axis. In (I), the Mn(II) cation lies on a twofold axis, whereas the four central C atoms of the bpym ligand are located on a mirror plane. In (II), the central Cu(II) cation is also on a special position (site symmetry -1). In the crystal structures, the packing of the chains is further strengthened by a system of hydrogen bonds [in both (I) and (II)] and weak face-to-face π-π interactions [in (I)], forming three-dimensional metal-organic frameworks. The Mn(II) cation in (I) has a trigonally deformed octahedral geometry, whereas the Cu(II) cations in (II) are in distorted octahedral environments. The Cu(II) polyhedra are inclined relative to each other and share common edges. |
| File Format | HTM / HTML |
| Issue Number | Pt 2 |
| Volume Number | 71 |
| e-ISSN | 20532296 |
| Journal | Acta Crystallographica Section C Structural Chemistry |
| Language | English |
| Publisher | IUCr |
| Publisher Date | 2015-02-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Crystallography Discipline Analytical Chemistry Coordination Complexes Chemistry Copper Manganese Phthalic Acids Pyrimidines Chelating Agents Crystallography, X-ray Hydrogen Bonding Ligands Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
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