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博碩士論文 etd-1226108-142640 詳細資訊
Title page for etd-1226108-142640
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
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
60
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
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
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
壹、苯酚膦化物銀、鉈、釔、鋅錯合物
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貳、胺基膦化鉈錯合物
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肆、附錄
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5. 將Zn (1.1716 g, 18.5 mmol)置於Schlenk-flask中,膜口處塞septa後纏銅線,在side arm處抽灌氮氣三次,加入經過除水的THF(20 mL),再加入1,2-dibromoethane (0.08 mL, 0.9241 mmol),接著加熱至THF沸騰後使其降溫至室溫,共4次循環,最後再加入Me3SiCl (0.02 mL, 0.1576 mmol)並在室溫下攪拌15分鐘後,靜置,將THF移走,抽乾,即可得到活化過的Zn dust。
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