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The synthesis and carbon dioxide rea...
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McDonnell, Ryan.
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The synthesis and carbon dioxide reactivity of alkylaminozinc complexes.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
The synthesis and carbon dioxide reactivity of alkylaminozinc complexes./
作者:
McDonnell, Ryan.
面頁冊數:
210 p.
附註:
Source: Dissertation Abstracts International, Volume: 67-06, Section: B, page: 3131.
Contained By:
Dissertation Abstracts International67-06B.
標題:
Chemistry, Inorganic. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3220322
ISBN:
9780542742057
The synthesis and carbon dioxide reactivity of alkylaminozinc complexes.
McDonnell, Ryan.
The synthesis and carbon dioxide reactivity of alkylaminozinc complexes.
- 210 p.
Source: Dissertation Abstracts International, Volume: 67-06, Section: B, page: 3131.
Thesis (Ph.D.)--Arizona State University, 2006.
A number of organometallic complexes utilize carbamate ligands to incorporate CO2 into new molecules. In order to better understand metal-carbamate chemistry, a series of CO2 reactive alkylaminozinc complexes were synthesized by the addition of dimethylzinc to secondary amines, resulting in the isolation of Zn(CH3)2(HNC4H 8O)2, 1. The addition of one equivalent of CO 2 to 1 resulted in the formation of the partially converted complex [Zn(CH3)(HNC4H8O)(O2CNC 4H8O)]n, 2. Addition of CO2 in excess under anhydrous conditions formed the complex [Zn(O 2CNC4H8O)2]n, 3, and the addition of one quarter equivalent of H2O to 3 caused the formation of the Zn4(O2CNC4H 8O)6 complex, 4. The kinetics of CO2 addition to 1 indicated the presence of a pentacoordinate zinc transition state that is responsible for alkyl elimination in 1. Additional reactions of secondary amines with dimethylzinc also results in the pyrrolidine complex Zn2(NC4H8)2 (HNC4H8)2, 5, the pipendine complex [Zn(CH3)(HNC5H10)]m, 6, and the diisopropylamine complex [Zn(CH3)2(HNC 6H14)]n, 7. The investigation also lead to the characterization of the polymeric dialkylpiperazinozinc complex [Zn(CH3)2(HC4H8NH)]n, 9. This complex does not insert CO2, but does catalyze the cyclization of phenyl isocyanate into the trimer phenylisocyanurate.
ISBN: 9780542742057Subjects--Topical Terms:
517253
Chemistry, Inorganic.
The synthesis and carbon dioxide reactivity of alkylaminozinc complexes.
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A number of organometallic complexes utilize carbamate ligands to incorporate CO2 into new molecules. In order to better understand metal-carbamate chemistry, a series of CO2 reactive alkylaminozinc complexes were synthesized by the addition of dimethylzinc to secondary amines, resulting in the isolation of Zn(CH3)2(HNC4H 8O)2, 1. The addition of one equivalent of CO 2 to 1 resulted in the formation of the partially converted complex [Zn(CH3)(HNC4H8O)(O2CNC 4H8O)]n, 2. Addition of CO2 in excess under anhydrous conditions formed the complex [Zn(O 2CNC4H8O)2]n, 3, and the addition of one quarter equivalent of H2O to 3 caused the formation of the Zn4(O2CNC4H 8O)6 complex, 4. The kinetics of CO2 addition to 1 indicated the presence of a pentacoordinate zinc transition state that is responsible for alkyl elimination in 1. Additional reactions of secondary amines with dimethylzinc also results in the pyrrolidine complex Zn2(NC4H8)2 (HNC4H8)2, 5, the pipendine complex [Zn(CH3)(HNC5H10)]m, 6, and the diisopropylamine complex [Zn(CH3)2(HNC 6H14)]n, 7. The investigation also lead to the characterization of the polymeric dialkylpiperazinozinc complex [Zn(CH3)2(HC4H8NH)]n, 9. This complex does not insert CO2, but does catalyze the cyclization of phenyl isocyanate into the trimer phenylisocyanurate.
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