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Reactivity of metal alkyl complexes ...

Lau, Ka Cheong.

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Reactivity of metal alkyl complexes with carbon dioxide.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Reactivity of metal alkyl complexes with carbon dioxide./
作者:	Lau, Ka Cheong.
面頁冊數:	207 p.
附註:	Source: Dissertation Abstracts International, Volume: 77-08(E), Section: B.
Contained By:	Dissertation Abstracts International77-08B(E).
標題:	Inorganic chemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10052893
ISBN:	9781339564876

Reactivity of metal alkyl complexes with carbon dioxide.
Lau, Ka Cheong.

Reactivity of metal alkyl complexes with carbon dioxide. - 207 p.

Source: Dissertation Abstracts International, Volume: 77-08(E), Section: B.

Thesis (Ph.D.)--The University of Chicago, 2016.

This thesis describes the studies of reactions of CO2 with olefin polymerization catalysts and analogous metal alkyl complexes. These metal alkyl complexes differ by the number of alkyl groups, charges and coordination sites and thus provide insights to how these factors affect the carboxylation of olefin polymerization catalysts.

ISBN: 9781339564876Subjects--Topical Terms:

3173556
Inorganic chemistry.

Reactivity of metal alkyl complexes with carbon dioxide.
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100 1 $a Lau, Ka Cheong. $3 3192671
245 1 0 $a Reactivity of metal alkyl complexes with carbon dioxide.
300 $a 207 p.
500 $a Source: Dissertation Abstracts International, Volume: 77-08(E), Section: B.
500 $a Adviser: Richard F. Jordan.
502 $a Thesis (Ph.D.)--The University of Chicago, 2016.
520 $a This thesis describes the studies of reactions of CO2 with olefin polymerization catalysts and analogous metal alkyl complexes. These metal alkyl complexes differ by the number of alkyl groups, charges and coordination sites and thus provide insights to how these factors affect the carboxylation of olefin polymerization catalysts.
520 $a Chapter One introduces the scope and mechanisms of the reactions of metal alkyl complexes with CO2. These reactions can occur by a spectrum of mechanisms. Structure/reactivity relationships and mechanistic studies of these reactions are discussed.
520 $a Chapter Two describes structure/reactivity and DFT studies of the carboxylation reactions of Cp2ZrMe(ClC6D5)+ and (PO-iPr)PdMe (PO-iPr-- = 2-PiPr2-4-Me-C6H3SO 3--) complexes, and their corresponding dimethyl complexes Cp2ZrMe2 and (PO-iPr)PdMe 2-. CO2 reacts with Cp2ZrMe(C6D5Cl) + more than 104 faster than with Cp2ZrMe 2, yielding monoacetate products in both cases. These reactions proceed by insertion mechanisms in which Zr- - -O interactions activate the CO2, and the electrophilicity of the Zr center controls the reactivity. In contrast, CO2 reacts readily with anionic [(PO- iPr)PdMe2]- to yield [(PO- iPr)PdMe(OAc)]- but not with neutral (PO- iPr)PdMe(L) species. Carboxylation of [(PO-iPr)PdMe 2]- occurs by direct SE2 attack of CO 2 at the Pd--Metrans-to-P group, and the nucleophilicity of the Pd--Me group controls the reactivity. However, the SE2 process is accelerated by a Li+- - -OCO interaction when Li+ is present.
520 $a Chapter Three describes mechanistic studies of reactions of CO2 with (PDI)FeMe, (PDI)Fe(Me)PMe3 and [(PDI)FeMe][BPh 4]. Solvent effects and kinetic studies provide evidence that these reactions occur by an insertion mechanism involving CO2 pre-coordination to the Fe center regardless of charge state. CO2 reacts with neutral (PDI)FeMe 5-fold faster than with cationic [(PDI)FeMe][BPh4], suggesting that the nucleophilicity of Fe--Me group controls the reactivity.
590 $a School code: 0330.
650 4 $a Inorganic chemistry. $3 3173556
650 4 $a Organic chemistry. $3 523952
690 $a 0488
690 $a 0490
710 2 $a The University of Chicago. $b Chemistry. $3 1675066
773 0 $t Dissertation Abstracts International $g 77-08B(E).
790 $a 0330
791 $a Ph.D.
792 $a 2016
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10052893