Synthesis and characterization of Vanadium(III、IV)complexes of Tri(thiolate)phosphine ligands
碩士 === 國立成功大學 === 化學系碩博士班 === 94 === Vanadium plays important roles in biology and medicine. For instance, vanadium containing nitrogenase (V-nitrogenase) catalyzes the reduction of dinitrogen to ammonia. Some vanadium compounds such as VIVO-bis(maltolato), VIVO-bis(acetylacetonato) and VV-dipic...
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ndltd-TW-094NCKU50650552015-12-16T04:31:52Z http://ndltd.ncl.edu.tw/handle/00020082741931467124 Synthesis and characterization of Vanadium(III、IV)complexes of Tri(thiolate)phosphine ligands 合成與描述以Tri(thiolate)phosphine為配位基的釩(III、IV)化合物 Rong-Ching Wang 王榮慶 碩士 國立成功大學 化學系碩博士班 94 Vanadium plays important roles in biology and medicine. For instance, vanadium containing nitrogenase (V-nitrogenase) catalyzes the reduction of dinitrogen to ammonia. Some vanadium compounds such as VIVO-bis(maltolato), VIVO-bis(acetylacetonato) and VV-dipicolinato were found to replace insulin for treating type II diabetes. The mechanism of vanadium nitrogenase catalyzes nitrogen fixation is still obscure. How vanadium compounds can treat diabetes is also not well understood. According to the spectroscopic studies, vanadium site in V-nitrogenase has a S-rich coordination environment. It has been reported that the mechanism of vanadium insulin mimics might be related to the interaction of vanadium compound with the cystein residue of protein tyrosine phosphatase (PTP). Thus, it is very important to have a fully understanding for the chemistry of vanadium compounds, particularly, in sulfur-rich ligation environment. In this research, we use polythiolate ligands, and [PS3]H3 (P(C6H4-2-SH)3), [PS3’]H3 (P(C6H3-5-Me-2-SH)3), and[PS3”]H3 (P(C6H3-3-SiMe3-2-SH)3) as a title ligand for reacting with VIII species. We obtained [(C3H7)4N][VIII(PS3)N3] (1), [PPh4][VIV(PS3”)(PS3”SH)] (2) and [VIV(PS3”)(PS3”S-C-S)] (3). Compound 1 is the first example of V(III) species binding to an N3- ion, an alternate substrate of nitrogenase. In addition, the catalytic reactivity of the reduction of azide by [VIII(PS3”)Cl]- was also investigated. [PPh4][VIV(PS3”)(PS3”SH)] (2) and [VIV(PS3”)(PS3”S-C-S)] (3) represent rare examples of seven-coordinate nonoxovanadium(IV) compounds. In this dissertation, we will detail the syntheses, structural characterization, reactivities, spectroscopies of these compounds. Hua-Fen Hsu 許鏵芬 2006 學位論文 ; thesis 159 zh-TW |
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碩士 === 國立成功大學 === 化學系碩博士班 === 94 === Vanadium plays important roles in biology and medicine. For instance, vanadium containing nitrogenase (V-nitrogenase) catalyzes the reduction of dinitrogen to ammonia. Some vanadium compounds such as VIVO-bis(maltolato), VIVO-bis(acetylacetonato) and VV-dipicolinato were found to replace insulin for treating type II diabetes.
The mechanism of vanadium nitrogenase catalyzes nitrogen fixation is still obscure. How vanadium compounds can treat diabetes is also not well understood. According to the spectroscopic studies, vanadium site in V-nitrogenase has a S-rich coordination environment. It has been reported that the mechanism of vanadium insulin mimics might be related to the interaction of vanadium compound with the cystein residue of protein tyrosine phosphatase (PTP). Thus, it is very important to have a fully understanding for the chemistry of vanadium compounds, particularly, in sulfur-rich ligation environment. In this research, we use polythiolate ligands, and [PS3]H3 (P(C6H4-2-SH)3), [PS3’]H3 (P(C6H3-5-Me-2-SH)3), and[PS3”]H3 (P(C6H3-3-SiMe3-2-SH)3) as a title ligand for reacting with VIII species. We obtained [(C3H7)4N][VIII(PS3)N3] (1), [PPh4][VIV(PS3”)(PS3”SH)] (2) and [VIV(PS3”)(PS3”S-C-S)] (3). Compound 1 is the first example of V(III) species binding to an N3- ion, an alternate substrate of nitrogenase. In addition, the catalytic reactivity of the reduction of azide by [VIII(PS3”)Cl]- was also investigated. [PPh4][VIV(PS3”)(PS3”SH)] (2) and [VIV(PS3”)(PS3”S-C-S)] (3) represent rare examples of seven-coordinate nonoxovanadium(IV) compounds. In this dissertation, we will detail the syntheses, structural characterization, reactivities, spectroscopies of these compounds.
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author2 |
Hua-Fen Hsu |
author_facet |
Hua-Fen Hsu Rong-Ching Wang 王榮慶 |
author |
Rong-Ching Wang 王榮慶 |
spellingShingle |
Rong-Ching Wang 王榮慶 Synthesis and characterization of Vanadium(III、IV)complexes of Tri(thiolate)phosphine ligands |
author_sort |
Rong-Ching Wang |
title |
Synthesis and characterization of Vanadium(III、IV)complexes of Tri(thiolate)phosphine ligands |
title_short |
Synthesis and characterization of Vanadium(III、IV)complexes of Tri(thiolate)phosphine ligands |
title_full |
Synthesis and characterization of Vanadium(III、IV)complexes of Tri(thiolate)phosphine ligands |
title_fullStr |
Synthesis and characterization of Vanadium(III、IV)complexes of Tri(thiolate)phosphine ligands |
title_full_unstemmed |
Synthesis and characterization of Vanadium(III、IV)complexes of Tri(thiolate)phosphine ligands |
title_sort |
synthesis and characterization of vanadium(iii、iv)complexes of tri(thiolate)phosphine ligands |
publishDate |
2006 |
url |
http://ndltd.ncl.edu.tw/handle/00020082741931467124 |
work_keys_str_mv |
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