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論文名稱 Title |
苯酚或胺螯合配位基金屬錯合物之製備及結構鑑定 Preparation and Structural Characterization of Metal Complexes Containing a Chelating Phenolato or Amido Ligand |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
60 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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口試日期 Date of Exam |
2008-11-25 |
繳交日期 Date of Submission |
2008-12-26 |
關鍵字 Keywords |
金屬錯合物、苯酚、胺 phenolato ligand, metal complexes, amido ligand |
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統計 Statistics |
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中文摘要 |
利用本實驗室所合成出的{[O3P]AlMe}Li(DME)3分別與銀(Ag)及鉈(Tl)金屬化合物進行反應,可以分別得到{[O3P]AlMe}Ag和{[O3P]AlMe}Tl,利用不同核種的核磁共振(NMR)光譜及元素分析(EA)對其加以鑑定,並比較三個錯合物中金屬與磷(P)原子之間的作用力(interaction),{[O3P]AlMe}Li(DME)3在31P NMR中無法看到Li與P原子之間的耦合(coupling),然而{[O3P]AlMe}Ag或{[O3P]AlMe}Tl可在31P NMR中分別觀察到Ag或Tl與P原子之間的耦合。將三苯酚磷化物2,2′,2′′-phosphinotris(4,6-di-tert-butylphenlate) ([O3P]3-)當作配位基與釔(Y)金屬化合物反應,可以得到[O3PH]YCl,利用不同核種的NMR鑑定之。我們以雙苯酚磷化物2,2′-phenylphosphinobis(4,6-di-tert-butylphenlate) ([OPO]2-)及三苯酚磷化物分別在THF溶液中與鋅(Zn)金屬化合物反應,可分別得到{[OPO]Zn}2及{[O3P]Zn}2Zn(THF)2,利用不同核種的NMR及X-ray繞射鑑定其組成。 將本實驗室已發表的三牙胺基膦化物配位基bis(2-diphenylphosphinophenyl)amide, [Ph-PNP]-,和bis(2-diisopropylphosphinophenyl)amide,[iPr-PNP]-,分別與鉈(Tl)金屬化合物反應,得到兩個Tl金屬錯合物[R-PNP]Tl (R = Ph or iPr)利用不同核種的NMR鑑定,在31P{1H} NMR中觀察到P與Tl原子之間的耦合(coupling),可以確定兩原子之間確實有鍵結(bonding)。 我們以Pd(OAc)2當作催化劑利用cross-coupling的策略合成具有剛硬苯環骨架的胺基氯化物N-(2-chlorophenyl)-2,6-diisopropylaniline,H[iPrAr-NCl],接著將此氯化物溶在toluene溶液中降溫至-35 °C 與等當量的n-BuLi反應得到[iPrAr-NCl]Li,將其溶於diethyl ether中做再結晶可得到含兩分子diethyl ether配位的[iPrAr-NCl]Li(OEt2)2無色晶體,利用X-ray繞射鑑定可看出其結構為中心金屬Li與胺基氯化物上的N和Cl原子及兩個diethyl ether分子的O原子形成四配位的Li金屬錯合物。 |
Abstract |
The Complexes {[O3P]AlMe}Ag and {[O3P]AlMe}Tl have been synthesized and characterized successfully. The structures of {[O3P]AlMe}Ag and {[O3P]AlMe}Tl were compared with the reported {[O3P]AlMe}Li(DME)3. The 31P NMR showed that soft nature of Ag and Tl ions in {[O3P]AlMe}Ag and {[O3P]AlMe}Tl respectively is interacted with P atom of phenolato ligand and the hard Li ion did not interact with P atom. The reaction of H3[O3P] with YCl3 at RT gave [O3PH]YCl. This is confirmed by 1H NMR technique. The complexes {[O3P]Zn}2Zn(THF)2 and {[OPO]Zn}2 were prepared by the reaction of Zn salt with [O3P]3- and [OPO]2- respectively in excellent yield and characterized by 1H NMR spectroscopy. The X-ray structure of complex {[O3P]Zn}2Zn(THF)2 reveals that it is formed as trimer. We have prepared two thallium complexes derived from diarylamido-based PNP ligands and TlOTf. 31P{1H} NMR revealed that two phosphine atoms in PNP ligand is coordinated with metal Tl center. The palladium-catalyzed aryl amination of 1-bromo-2-chlorobenzene with 2,6-diiso- propylaniline quantitatively produces N-(2-chlorophenyl)-2,6-diisopropylaniline, H[iPrAr- NCl]. Deprotonation of H[iPrAr-NCl] with 1 equiv of n-BuLi in toluene at -35 °C produced cleanly [iPrAr-NCl]Li. Subsequent recrystallization of [iPrAr-NCl]Li in diethyl ether generated the bis(ether) adduct [iPrAr-NCl]Li(OEt2)2. An X-ray study of [iPrAr-NCl]Li- (OEt2)2 showed it to be a four-coordinate species with the coordination of the chlorine atom to the lithium center. |
目次 Table of Contents |
壹、苯酚膦化物銀、鉈、釔、鋅錯合物.............................1 一、緒論................................................................................1 二、結果與討論....................................................................3 1.{[O3P]AlMe}Ag的合成與鑑定.........................................3 2.{[O3P]AlMe}Tl的合成與鑑定...........................................4 3.[O3PH]YCl的合成與鑑定................................................7 4.{[O3P]Zn}2Zn(THF)2的合成與鑑定..............................8 5.{[OPO]Zn}2的合成與鑑定.............................................11 三、結論.............................................................................12 四、實驗部分.....................................................................13 1.一般程序.........................................................................13 2.儀器.................................................................................14 3.實驗步驟.........................................................................15 (1)合成{[O3P]AlMe}Ag....................................................15 (2)合成{[O3P]AlMe}Tl......................................................15 (3)合成TlOTf.....................................................................16 (4)合成[O3PH]YCl...........................................................16 (5)合成{[O3P]Zn}2Zn(THF)2.........................................17 (6)合成{[OPO]Zn}2..........................................................18 五、參考文獻.....................................................................19 貳、胺基膦化物鉈錯合物..................................................21 一、緒論.............................................................................21 二、結果與討論.................................................................22 1.[iPr-PNP]Tl的合成與鑑定.............................................22 2.[Ph-PNP]Tl的合成與鑑定.............................................23 三、結論.............................................................................24 四、實驗部分.....................................................................25 1.一般程序.........................................................................25 2.儀器.................................................................................25 3.實驗步驟.........................................................................26 (1)合成[iPr-PNP]Tl..........................................................26 (2)合成[Ph-PNP]Tl..........................................................27 五、參考文獻.....................................................................28 參、胺基氯化物鋰錯合物..................................................30 一、緒論.............................................................................30 二、結果與討論.................................................................31 1.H[iPrAr-NCl]的合成與鑑定...........................................31 2.[iPrAr-NCl]Li的合成與鑑定...........................................32 3.[iPrAr-NCl]Li(OEt2)2的合成與鑑定.............................33 三、結論.............................................................................34 四、實驗部分.....................................................................34 1.一般程序.........................................................................34 2.儀器.................................................................................35 3.實驗步驟.........................................................................36 (1)合成H[iPrAr-NCl]........................................................36 (2)合成[iPrAr-NCl]Li........................................................37 (3)合成[iPrAr-NCl]Li(OEt2)2..........................................38 五、參考文獻.....................................................................38 肆、附錄..............................................................................40 一、其他化合物的合成與鑑定.........................................40 1.合成[OPO]2NbOH.........................................................40 2.合成Nb(O)Cl3(THF)2...................................................40 3.合成H2[OPO]S..............................................................41 4.合成H2[O3PMe]............................................................41 5.合成H[iPr(ArF)N]...........................................................42 二、參考文獻.....................................................................43 三、變溫NMR光譜圖........................................................44 1.[Ph-PNP]Tl的變溫31P{1H} NMR光譜.......................44 2.[OPO]2NbOH的變溫1H NMR光譜.............................47 四、Crystallographic Data..............................................50 |
參考文獻 References |
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