WFRF:(Huang Z.)
Sökning: WFRF:(Huang Z.) > (2000-2004) > Synthesis, structur...
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03812naa a2200541 4500 | |
| 001 | oai:DiVA.org:kth-23326 | |
| 003 | SwePub | |
| 008 | 100810s2004 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233262 URI |
| 024 | 7 | a https://doi.org/10.1002/ejic.2003005862 DOI |
| 040 | a (SwePub)kth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Huang, D. G.4 aut |
| 245 | 1 0 | a Synthesis, structural characterizations and magnetic properties of a series of mono-, di- and polynuclear manganese pyridinecarboxylate compounds |
| 264 | c 2004-03-22 | |
| 264 | 1 | b Wiley,c 2004 |
| 338 | a print2 rdacarrier | |
| 500 | a QC 20100525 | |
| 520 | a Seven new manganese(II, III, IV) pyridinecarboxylate compounds (Et4N)[MnCl2(pic)(2)] (1, Hpic = picolinic acid) [MnCl(Pic)(2)(H2O)].H2O (2), [MnCl(pic)(H2O)2](n) (3), [Mn(Pic)(2)](n) (4), [MnCl(pic)](n) (5), [MnCl2(4-C5H4NHCOO)](n) (6) and [Mn2O2(pic)(4)] (7) were synthesized and structurally characterized. The picolinate ligand coordinates to the Mn ion forming a chelating five-membered ring which constructs diverse architectures by various bridging modes, such as mu-Cl, mu(1,1)(-) and mu(1,3)-carboxylate bridges (syn-syn and syn-anti modes). The interaction between the pyridyl rings is discussed, displaying a face-to-face pi-pi stacking for complex 6 and a T-shaped C-H...pi attraction for complex 4. Complex 3 has an infinite zigzag chain structure in which two neighboring Mn ions are linked by a carboxylate bridge in a syn-anti mode. In complex 4, the Mn(pic)(2) fragments are joined to each other by double mu(1,1)-carboxylate bridges, forming a 2D layer structure. Complex 5 contains Mn4O4 square subunits which are connected by double mu-Cl bridges to form a grid-like 2D structure. The isonicotinate complex 6 has a zigzag chain structure containing mixed double mu-Cl and mu(1,3)-carboxylate bridges in a syn-syn mode. Protonation at the pyridyl-N position was found and identified by the IR and magnetic properties of 6. The participation of an oxidizing agent like MnO4- leads to complexes containing higher valent manganese (1, 2 and 7). The IR spectra of these complexes are discussed and found to be consistent with the structural features. The magnetic properties of complexes 4, 5 and 6 have been investigated. Antiferromagnetic coupling interactions were observed and satisfactory fitting results were obtained with J values ranging from -0.63 cm(-1) to -2.35 cm(-1). The magnetic parameters of these complexes, together with the parameters of other Mn complexes with comparable structures, are compared and discussed based on the bridging modes. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004). | |
| 653 | a carboxylate ligands | |
| 653 | a coordination polymers | |
| 653 | a magnetic properties | |
| 653 | a manganese | |
| 653 | a X-ray diffraction | |
| 653 | a oxygen-evolving complex | |
| 653 | a crystal-structure | |
| 653 | a photosystem-ii | |
| 653 | a coordination polymers | |
| 653 | a metal-complexes | |
| 653 | a model complexes | |
| 653 | a picolinic-acid | |
| 653 | a zigzag chain | |
| 653 | a mn cluster | |
| 653 | a water | |
| 700 | 1 | a Wang, W. G.4 aut |
| 700 | 1 | a Zhang, X. F.4 aut |
| 700 | 1 | a Chen, C. N.4 aut |
| 700 | 1 | a Chen, F.4 aut |
| 700 | 1 | a Liu, Q. T.4 aut |
| 700 | 1 | a Liao, D. Z.4 aut |
| 700 | 1 | a Li, L. C.4 aut |
| 700 | 1 | a Sun, Licheng C.4 aut |
| 773 | 0 | t European Journal of Inorganic Chemistryd : Wileyg :7, s. 1454-1464q :7<1454-1464x 1434-1948x 1099-1948x 1099-0682 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-23326 |
| 856 | 4 8 | u https://doi.org/10.1002/ejic.200300586 |
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