Synthesis and Magnetic Properties of Some Copper(II) and Nickel(II) Triketonate Complexes PDF Download
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Author: Sister Julie Kramer
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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Author: Sister Julie Kramer
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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Author: Daniel Patrick Murtha
Publisher:
ISBN:
Category : Ketones
Languages : en
Pages : 198
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Author: Londa L. Borer
Publisher:
ISBN:
Category : Ketones
Languages : en
Pages : 266
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Author: Ned Arthur Daugherty
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ISBN:
Category : Copper compounds
Languages : en
Pages : 252
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Author: William Michael Davis
Publisher:
ISBN:
Category : Heterobimetallic complexes
Languages : en
Pages : 440
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Category : Dissertations, Academic
Languages : en
Pages : 194
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Author: Raymond L. Hough
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Category :
Languages : en
Pages : 150
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Author: Hassan Keypour
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Category :
Languages : en
Pages :
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Author: Wayne Edward Marsh
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Category : Copper compounds
Languages : en
Pages : 488
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Author: Huan Guo
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Category :
Languages : en
Pages : 204
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The major focus of this thesis involves a new approach to spin-crossover (SCO) in iron(II) dinuclear complexes. In order to acquire SCO properties, a series of novel ligands (L1M, L2M, L3M, L4M), together with the corresponding iron(II) and/or nickel(II) complexes were synthesized and characterized. Beyond the successful synthesis and characterization of these ligands, some interesting aspects of their synthesis are discussed. The reported ligands are methyl-derivatives from ligands previously studied in the group. The methyl group in the position 6 of the pyridine group is introduced to induce steric hindrance in the complexes and decrease the ligand field strength. As a result, the influence of the methyl group may induce SCO in low spin (LS) complexes, or tune the SCO properties (such as transition hysteresis or transition temperature) in complexes with SCO. Ligands were divided into three different types according to their spacers: a ligand with an aromatic spacer (L1M), ligands with aliphatic spacer (L2M, L3M) and a ligand with no spacer (L4M). The difference between their structures helped us to better understand the coordination chemistry of the corresponding complexes. The nickel(II) complexes formed provided useful background information on the coordination chemistry of iron(II), such as the crystal field stabilization energy (10Dq) value. An approximation of 10Dq value of iron(II) was calculated based on the 10Dq value of analogous nickel(II) complexes using an empirical rule, to provide a prediction of SCO property.
