Ethylenebis (isonitrosoethylacetoacetate imine) 과 유사화합물을 리간드로 하는 팔라듐 (II) 착물의 합성 및 성질

Preparation and Properties of Palladium (II) Complexes with Ethylenebis (isonitrosoethylacetoacetate imine) and Its Analogue

  • 김수한 (陸軍第三士官學校 化學科) ;
  • ;
  • ;
  • 발행 : 1985.10.20

초록

팔라듐(II)의 새로운 착물인 $[Pd((ieaa)_2-en)]$ 및 [PdCl((ieaa)-l-pn)]을 합성하였다. 여기서 $(ieaa)_2-en$과 (ieaa)-l-pn은 각각 N,N'-ethylenebis(isonitrosoethylacetoacetate imine) 및 l-N-(2-aminopropyl)-isonitrosoethylacetoacetate imine을 표시한다. 합성된 이들 팔라듐(II) 착물들은 전자흡수(AB) 스펙트럼, 원이색성(CD) 스펙트럼, C-13핵자기공명스펙트럼, 적외선 및 라만스펙트럼등의 측정결과를 기초로 그 특성을 연구하였다. 염화팔라듐(II)과 ethylenediamine을 첨가한 isonitrosoethylacetoacetate (ieaa)와의 반응에서 생성된 팔라듐착물에서는 $(ieaa)_2-en$형의 Schiff 염기, 한편 ethylenediamine 대신 l-propylenediamine을 사용한 비슷한 반응으로 생성된 착물에서는 (ieaa)-l-pn형의 Schiff염기로 나타낸다. 이러한 구조형성의 차이를 사용된 diamine의 입체화학적 관점에서 검토한다.

Novel palladium (II) complexes, $[Pd((ieaa)_2-en)]$ and [PdCl((ieaa)-l-pn)] ($(ieaa)_2-en)]$ and (ieaa)-l-pn denote N,N'-ethylenebis(isonitrosoethylacetoacetate imine) and l-N-(2-aminopropyl)-isonitrosoethylacetoacetate imine, respectively), have been prepared. The palladium (II) complexes were characterized on the bases of the electronic absorption, circular dichroism (CD), $^{13}C$ NMR, infrared, and Raman spectra. The reaction of palladium(II) cliloride and isonitrosoethylacetoacetate (ieaa) with methylenediamine gives an $(ieaa)_2-en)]$ type Schiff base, while similar reaction using l-propylenediamine instead of ethylenediamine gives an (ieaa)-l-pn type Schiff base. The difference in formation is discussed from the stereochemical viewpoint of the diamine employed.

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