Translated Titles

Coordination chemistry of lead(II) complexes



Key Words

鉛硫錯合物 ; 核磁共振光譜 ; lead(II) ; thiolate ; Nucleic Magnetic Resonance Spectroscopy



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Chinese Abstract

鉛一直以來對於人類與環境都是一種有毒的金屬,在自然界中植物可以產生多硫的解毒劑用來移去鉛,相反的鉛也會與人體中含硫的生物配位基反應而呈現toxic effect。為了要去了解鉛毒性的基礎化學,所以非常需要完整鉛配位化學的光譜。在本論文中,我們使用了一系列的磷硫配位基PS3, PS3’ and PS3” PhPS2’’ and tBuPS2” PhPS1”合成出六個鉛硫錯合物來探討其化學,分別是[N(CH3)3(PhCH2)][Pb(PS3)] (1), [N(C7H15)4] [Pb(PS3’)] (2), [N(C2H5)4][Pb(PS3”)] (3a and 3b), [Pb(PhPS2”)] (4), [Pb(PhPS1”)2] (5),and [Pb(tBuPS2”)] (6),這些錯合物的合成與X-ray結構的鑑定在我們實驗室裡早已建立,為了要去更加了解這些錯合物的配位化學,所以我們使用了一些物理方法來鑑定例如核磁共振光譜、X-ray繞射、X-ray吸收儀器並且探討這些錯合物的固態和液態的配位化學。

English Abstract

Lead(II) ion has been known to a toxic element for human being and environment. In nature, plants can produce antidotes which contain sulfur ligands to remove lead ion. In contrast, lead(II) ion shows the toxic effect by interacting with sulfur containing bioligands in human body. To provide insights for understanding the fundamental chemistry of the lead(II) toxicity, it is very essential to have a full scope of the lead(II) coordination chemistry. At this particular work, we investigate lead(II) sulfur chemistry by utilizing a series of thiolatophosphine ligands, such as tris(benzenethiolato)phosphine (PS3, PS3’ and PS3”), bis(benzenethiolato)phosphine(PhPS2’’ and tBuPS2”), and benzenethiolatophosphine (PhPS1”). We isolated six lead complexes with these ligands. They are [N(CH3)3(PhCH2)][Pb(PS3)] (1), [N(C7H15)4] [Pb(PS3’)] (2), [N(C2H5)4][Pb(PS3”)] (3a and 3b), [Pb(PhPS2”)] (4), [Pb(PhPS1”)2] (5),and [Pb(tBuPS2”)] (6). The synthesis and X-ray structures have been established previously in our laboratory. To study the coordination chemistry of these complexes in depth, several physical methods such as NMR (1H, 31P, and 207Pb), X-ray absorption spectroscopy in both solid and solution states, were applied on these complexes.

Topic Category 基礎與應用科學 > 化學
理學院 > 化學系
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