Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Synthesis and Properties of Anionic Tetrakis(pentafluorophenyl)indium(Ⅲ) Complexes

Tetrakis(pentafluorophenyl)indium(Ⅲ) 음이온 착물의 합성과 특성

  • Choi, Zel Ho (Dept. of Fine Chem. Eng. and Chemistry, College of Eng., Chungnam Nat'l Univ. )
  • 최철호 (충남대학교 공과대학 정밀공업화학과)
  • Published : 19990200
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Abstract

The anionic complexes, [ln($C_6F_5)_4$]-, which are thermal and moisture sensitive, have been prepared by the reaction of In($C_6F_5)_3{\cdot}D(D=CH_3CN$, O($C_2H_5)_2$) with the system ($CH_3)_3SiC_6F_5$/CsF, $C_6F_5$MgBr or Cd($C_6F_5)_2$. The stable anionic indium(III) complexes are obtained through cation exchange with PNPCI ([PNP]= bis(triphenylphosphino)ammonium). The pure substance is obtained by column chromatography. These new anionic complexes are unambiguously identifed by NMR-spectroscopy, IR spectroscopy, molecular weight, DTA/TG and elemental analysis.

In($C_6F_5)_3{\cdot}D(D=CH_3CN$, O($C_2H_5)_2$)와 ($CH_3)_3SiC_6F_5$/CsF, $C_6F_5$MgBr 또는 Cd($C_6F_5)_2$을 반응시켜 [In($C_6F_5)_4$]- 음이온 화합물을 합성하였으나, 이들 indium(III) 음이온 화합물들은 온도에 민감하고 습기에 대해 불안정하다. 안정한 indium(III) 음이온 착물은 PNPCl(PNP=bis(triphenylphosphino)ammonium)과의 양이온 치환반응시켜 얻었으며, 관 크로마토 그래피를 이용하여 분리 정제하였다. 합성된 화합물의 특성은 핵자기 공명 분석법, 적외선 분광분석법, 분자량 측정, DTA/TG 그리고 원소분석법을 이용하여 조사하였다.

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