| ชื่อเรื่อง | : | Polynuclear metal clusters using polyalkoxide ligands |
| นักวิจัย | : | Karotsis, Georgios |
| คำค้น | : | calixarenes , magnetism |
| หน่วยงาน | : | Edinburgh Research Archive, United Kingdom |
| ผู้ร่วมงาน | : | Brechin, Euan K. , Parsons, Simon |
| ปีพิมพ์ | : | 2554 |
| อ้างอิง | : | http://hdl.handle.net/1842/4921 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Calix[4]arene clusters as enhanced magnetic coolers and molecular magnets G. Karotsis, S. Kennedy, S. J. Teat, C. M. Beavers, D. A. Fowler, J. J. Morales, M. Evangelisti,* S. J. Dalgarno, E. K. Brechin J. Am. Chem. Soc 2010, 132, 12983. , Metal-organic calixarene nanotubes. S. Kennedy, G. Karotsis, C. M. Beavers, S. J. Teat, E. K. Brechin, S. J. Dalgarno. Angew. Chem. Int. Ed., 2010, 49, 4205. , Calixarene supported enneanuclear Cu(II) clusters. G. Karotsis, S. Kennedy, S. J. Dalgarno, E. K. Brechin. Chem. Commun.,2010, 46, 3884. , Planar [Ni-7] discs as double-bowl, pseudo metallacalix[6]arene host cavities. S. T. Meally, G. Karotsis, E. K. Brechin, G. S Papaefstathiou, P. W. Dunne, P. McArdle, L. F. Jones. Cryst. Eng. Comm.,2010, 12, 59. , A Calix[4]arene 3d/4f magnetic cooler. G. Karotsis, M. Evangelisti, S. J. Dalgarno, E. K. Brechin. Angew. Chem. Int. Ed.,2009, 48, 9928. , Calix[4]arene- based single molecule magnets. G. Karotsis, S. J. Teat, W. Wernsdorfer, S. Piligkos, S. J. Dalgarno, E. K. Brechin. Angew. Chem. Int. Ed. 2009, 48, 8285. , Supramolecular entanglement from interlocked molecular nanomagnets. C. Stoumpos, R. Inglis, G. Karotsis, L. F. Jones, A. Collins, S. Parsons, C. J. Milios, G. S. Papaefstathiou, E. K. Brechin. Cryst. Growth and Des. 2009, 9, 24. , Molecular and supramolecular Ni(II) wheels from alpha-benzoin oxime. G. Karotsis, C. Stoumpos, A. Collins, F. White, S. Parsons, A. M. Z. Slawin, G. S. Papaefstathiou, E. K. Brechin. Dalton Trans. 2009, 18, 3388. , Rare tetranuclear mixed-valent [MnII2MnIV] clusters as building blocks for extended networks. G. Karotsis, L. F. Jones, G. S. Papaefstathiou, A. Collins. S. Parsons, T. D. Nguyen, M. Evangelisti, E. K. Brechin. Dalton Trans. 2008, 36, 4917. , Enhancing SMM properties via axial distortion of Mn-3(III) clusters. R. Inglis, L. F. Jones, G. Karotsis, A. Collins, S. Parsons, S. Perlepes, W. Wernsdorfer, E. K. Brechin. Chem. Commun., 2008, 45, 5924. , High temperature orbital order melting in KCrF3 perovskite. S. Margadonna and G. Karotsis. Journ.of Mater. Chem 2007, 17, 2013. , Cooperative Jahn-Teller distortion, phase transitions and weak ferromagnetism in the KCrF3 perovskite. S. Margadonna and G. Karotsis. J. Am. Chem. Soc 2006, 128, 16436. , Dynamic mechanical behaviour of polymers containing silica nanoparticles A. Kraft, V. Arrighi, P.M.E. Adams, G. Karotsis, A. McAnaw, I.J. McEwen, L. Ragupathy, C. Waring. Polymer Preprints 2007, 48 (2), 203. |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | We have investigated the use of calix[4]arenes in 3d and 3d/4f chemistry which produced a family of 7 new complexes. These are: [MnIII2MnII2(OH)2(TBC4)2(DMF)6] (1) , the analogous version with C4 (2). [MnIII4GdIII4(OH)4(C4)4(NO3)2(DMF)6(H2O)6](OH)2 (3), [MnIII4TbIII4(OH)4(C4)4(NO3)2(DMF)6(H2O)6](OH)2 (4), [MnIII4DyIII4(OH)4(C4)4(NO3)2(DMF)6(H2O)6](OH)2 (5), [CuII9(OH)3(TBC4)3Cl2(DMSO)6](CuICl2)·DMSO (6·DMSO) (6) and [CuII9(OH)3(TBC4)3(NO3)2(DMSO)6](NO3)· DMSO (7·DMSO) (7). We continued with a series of Pseudo Metallocalix[6]arene planar disc complexes : [Ni7(OH)6(L1)6](NO3)2 (8), [Ni7(OH)6(L1)6](NO3)2.2MeOH (9), [Ni7(OH)6(L1)6](NO3)2.3MeNO2 (10), [Ni7(OH)6(L2)6](NO3)2.2MeCN (11), [Zn7(OH)6(L1)6](NO3)2.2MeOH.H2O (12) and [Zn7(OH)6(L1)6](NO3)2.3MeNO2 (13) and in the final part of this thesis we present a family of tetranuclear mixed valent Mn complexes using the tripodal ligand heedH2 : [MnII2MnIV2O2(heed)2(EtOH)6Br2]Br2 (14), [MnII2MnIV2O2(heed)2(H2O)2Cl4] (15), [MnII2MnIV2O2(heed)2(heedH2)2](ClO4)4 (16), [MnII2MnIV2O2(heed)2(MeCN)2(H2O)2(bpy)2](ClO4)4 (17), [MnII2MnIV2O2(heed)2(bpy)2Br4] (18); and the 2-D network of tetranuclear MnII/IV clusters {[MnII2MnIV2O2(heed)2(H2O)2(MeOH)2(dca)2]Br2}n (19). In total nineteen new complexes are reported. Studies of the magnetic properties show that 1 and 2 are SMM’s, whilst complex 3 is an excellent magnetic refrigerant for low-temperature applications and 4 and 5 behave as low-temperature molecular magnets. |
| บรรณานุกรม | : |
Karotsis, Georgios . (2554). Polynuclear metal clusters using polyalkoxide ligands.
กรุงเทพมหานคร : Edinburgh Research Archive, United Kingdom . Karotsis, Georgios . 2554. "Polynuclear metal clusters using polyalkoxide ligands".
กรุงเทพมหานคร : Edinburgh Research Archive, United Kingdom . Karotsis, Georgios . "Polynuclear metal clusters using polyalkoxide ligands."
กรุงเทพมหานคร : Edinburgh Research Archive, United Kingdom , 2554. Print. Karotsis, Georgios . Polynuclear metal clusters using polyalkoxide ligands. กรุงเทพมหานคร : Edinburgh Research Archive, United Kingdom ; 2554.
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