• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Synthesis and Molecular Design of Water-Soluble, All-Sodium Salts of Heteropolyanion-Supported Organometallic Complexes

Research Project

Project/Area Number 06640735
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Inorganic chemistry
Research InstitutionKanagawa University

Principal Investigator

NOMIYA Kenji  Kanagawa University, Faculty of Science, Professor, 理学部, 教授 (80119354)

Co-Investigator(Kenkyū-buntansha) CHIKARAISHI Noriko  Kanagawa University, Faculty of Science, Research Associate, 理学部, 助手 (90260992)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1995: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1994: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsHeteropolytungstate / Modified heteropolyanion / Heteropolyanion-support / Trisubstituted Dawson-structure / Trisubstituted Keggin-structure / Organometallic cation species / All-soidum salt / Synthesis
Research Abstract

According to the Application for the Grant in 1995, (1) preparation of all-soidum salts of modified Dawson- and Keggin-type heteropolyanion-supports and (2) preparation of organometallic cation-species Cp^<**>Rh^<2+> (Cp^<**>=C_5Me_5) and (3) preparations of the water-soluble, all-sodium salts of heteropolyanion-supported organometallic complexes have been performed. Something new results obtained from this research are as follows :
1. Using the sodium salt of Dawson-type modified heteropolyanion Na_9 [P_2W_<15>Nb_3O_<62>] ・23H_2O as a support, the synthetic conditions of the target compound Na_7 [Cp^<**>Rh・P_2W_<15>Nb_3O_<62>] were examined. This compound was formed by refulxing for 4 hr in mixed DMSO/CH_3CN (10 mL/50 mL) under nitrogen. Byproduct NaBF_4 was removed by repeated reprecipitations with DMSO/EtOAc. The purified compound with a formula of Na_7 [Cp^<**>Rh・P_2W_<15>Nb_3O_<62>] ・7DMSO・5H_2O was characterized by full elemental analyzes, TG/DTA,FT-IR,GLC analysis and NMR (^<183>W,^<31>P,^1H,^<13>C) spectroscopy.
2. This synthesis was quite different from those of the traditional compound based on the Bu_4N salts.
3. By similar method, the preparation of the corresopnding Cp^<**>Rh^<2+> complex supported on Keggin-type Na_7 [SiW_9Nb_3O_<40>] ・16H_2O support was carried out. The target compound was formed by the 4 hr-reaction at 84゚C under nitrogen in mixed DMSO/CH_3CN (7.2 mL/34 mL) solvent. The crude compound obtained here still contained some positional isomers of the supported Cp^<**>Rh^<2+> group. The single isomer was obtained by heating again for 3 hr 84゚C in dry DMSO under nitrogen, followed by purification based on repeated reprecipitations with DMSO/EtOAc. The composition of the target compound was determined as Na_5 [Cp^<**>Rh・SiW_9Nb_3O_<40>] ・3DMSO・2H_2O by characterization with full elemental analysis, TG/DTA,FT-IR and NMR (^<183>W,^<31>P,^1H,^<13>C) spectroscopy.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] K.Nomiya,et al.: "The all-sodium salt of a polyoxoanion-supported organometallic complex,Na_7[Cp^*Rh・P_2W_<15>Nb_3O_<62>]・7DMSO・5H_2O" J.Organometal.Chem.505. 23-28 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K.Nomiya et.al.: "The all-sodium salt of a polyoxoanion-supported organometallic complex Na_7 [Cp^<**>Rh・P_2W_<15>Mb_3O_<62>] ・7DMSO・5H_2O" J.Organometal.Chem.Vol.505. 23-28 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K. Nomiya et al.: "The all-sodium salt of a golyoxoanion-sirpported organometallic complex" J. Organometal. Chem.505. 23-28 (1995)

    • Related Report
      1995 Annual Research Report

URL: 

Published: 1994-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi