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      Investigação por espectroscopia Mössbauer de compostos de ferro(0) contendo dissulfeto de carbono Translated title: Mössbauer spectroscopy investigation of Fe(0) compounds with carbon disulfide

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          Abstract

          Neste trabalho são apresentados resultados proveniente da aplicação da Espectroscopia Mössbauer na investigação de compostos carbonilferro contendo o ligante CS2, [Fe(CO)2(h²-CS2 )(PPh3)2] e [Fe(CO)2(h²-CS2) {P(OPh)3}2]. Nas sínteses dessas espécies, a utilização de TMNO (trimetilaminóxido) como agente descarbonilante mostrou-se bastante eficiente, superando aquelas descritas na literatura que requerem inclusive preparação de compostos precursores. Os resultados de espectroscopia Mössbauer, juntamente com dados no IV e de RMN de 31P, foram conclusivos na proposição da geometria octaédrica distorcida ao redor do átomo de ferro para ambos os compostos investigados.

          Translated abstract

          The one pot syntheses of the compounds of general formula [Fe(CO)2(h²-CS2 )(L)2] (L = PPh3, P(OPh)3), were carried out in high yields by using trimethylaminoxide (TMNO) as decarbonilating agent. The compounds were investigated by Mössbauer spectroscopy which afforded indicative data of an octahedral geometry around the iron atom in the species [Fe(CO)2(h²-CS2)(PPh3) 2] e [Fe(CO)2(h²-CS2 ){P(OPh)3}2].

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          Manual de soluções, reagentes e solventes

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            Zeitschrift Fur Naturfor

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              Author and article information

              Journal
              eq
              Eclética Química
              Eclet. Quím.
              Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP (São Paulo, SP, Brazil )
              0100-4670
              1678-4618
              2004
              : 29
              : 2
              : 27-32
              Affiliations
              [02] Araraquara SP orgnameUNIARA orgdiv1Centro Universitário de Araraquara Brasil
              [03] São Paulo SP orgnameUSP orgdiv1Instituto de Física Brasil
              [01] Araraquara SP orgnameUNESP orgdiv1Instituto de Química orgdiv2Departamento de Inorgânica Brasil
              Article
              S0100-46702004000200004 S0100-4670(04)02900204
              10.1590/S0100-46702004000200004
              431a5eaa-e432-497b-b554-a3d05fe9dd7c

              This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

              History
              : 05 March 2004
              : 24 October 2003
              Page count
              Figures: 0, Tables: 0, Equations: 0, References: 23, Pages: 6
              Product

              SciELO Brazil


              Carbonilferro,Mössbauer spectroscopy,carbon disulfide,iron carbonyl complexes,espectroscopia Mössbauer,dissulfeto de carbono

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