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鎳、鈷1-氮雜環碳烯咔唑化合物之合成與化、物性探討 = Preparat...

國立高雄大學應用化學系碩士班

鎳、鈷1-氮雜環碳烯咔唑化合物之合成與化、物性探討 = Preparation, chemical and physical properties of Nickel and Cobalt 1(N-Heterocyclic Carbene)Carbazolides

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	Preparation, chemical and physical properties of Nickel and Cobalt 1(N-Heterocyclic Carbene)Carbazolides
作者:	賴昱達,
其他團體作者:	國立高雄大學
出版地:	[高雄市]
出版者:	撰者;
出版年:	2014[民103]
面頁冊數:	87面圖，表 : 30公分;
標題:	咪唑
標題:	imidazole
電子資源:	http://handle.ncl.edu.tw/11296/ndltd/46596540150374350551
附註:	參考書目：面68-70
附註:	103年12月16日公開
摘要註:	一系列的單邊含咪唑之咔唑的鹵化鹽類( R-Im-Cz-X, R = Me, Et, Pr, Bu, andBn; X = Br, and I )已藉由單邊溴化咔唑與咪唑先進行Ullmann Coupling 反應後，再與相對應的鹵烷以SN2 反應修飾所得到。透過液相NMR 和X-Ray 的固態繞射分析已經完全地將這些化合物定性。這些化合物的1H-NMR 共振訊號會受到取代基極大地影響，這表示這些取代基可能會對咪唑的部分造成電子效應或立體障礙的影響。將這些咪唑鹵化物的配位基與醋酸鎳和鹼進行錯和反應後，可能會得到具空氣敏感型的單邊含氮雜環碳烯之鎳金屬錯合物。由於順磁性和反磁性的化合物都可以分離並得到，所以這些碳烯可以是單配位和雙配位於鎳金屬。從UV/vis 光譜圖中得知在約400 nm 的範圍下，會有d-d transition 的吸收峰。這些配位基與醋酸鈷反應後也得到類似的結果。 A series of 3,6-di-tert-butyl-1-(3-alkylimidazolium-1-yl)carbazole halides(R-Im-Cz-X, R = Me, Et, Pr, Bu, and Bn; X = Br, and I) were prepared bymonobromination of 3,6-di-tert-butyl-carbazole, followed by Ullmann couplingreaction with imidazole and SN2 reaction with the analogue alkyl halides. Theimidazolium salts were fully characterized by NMR spectroscopy in solution as well as X-ray diffraction crystallography in solid state. Their resonance signals are strongly dependent on the alkyl substitutents, which indicate the alkyl groups could influence the electronic or steric status of the imidazollyl moiety. Reaction of the imidazolium halide ligands with nickel acetate and base might give air-sensitive nickel (N-heterocyclic carbene) carbazolide complexes. The carbene fragments could be mono-ligated and bis-ligated to nickel atoms, since both diamagnetic and paramagnetic compounds are isolated. The UV/vis spectra demonstrate that the nickel complexes have d-d transition absorption at ~ 400 nm. The reaction of these ligands with cobalt acetate give the smiliar results.

鎳、鈷1-氮雜環碳烯咔唑化合物之合成與化、物性探討 = Preparation, chemical and physical properties of Nickel and Cobalt 1(N-Heterocyclic Carbene)Carbazolides
賴, 昱達

鎳、鈷1-氮雜環碳烯咔唑化合物之合成與化、物性探討 = Preparation, chemical and physical properties of Nickel and Cobalt 1(N-Heterocyclic Carbene)Carbazolides / 賴昱達撰 - [高雄市] : 撰者, 2014[民103]. - 87面 ; 圖，表 ; 30公分.
參考書目：面68-70103年12月16日公開.
咪唑imidazole

鎳、鈷1-氮雜環碳烯咔唑化合物之合成與化、物性探討 = Preparation, chemical and physical properties of Nickel and Cobalt 1(N-Heterocyclic Carbene)Carbazolides
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