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Thiocyanate-Ligated Heterobimetallic {PtM} Lantern Complexes Including a Ferromagnetically Coupled 1D Coordination Polymer.
Guillet, Jesse L; Bhowmick, Indrani; Shores, Matthew P; Daley, Christopher J A; Gembicky, Milan; Golen, James A; Rheingold, Arnold L; Doerrer, Linda H.
Afiliação
  • Guillet JL; Department of Chemistry, Boston University , Boston, Massachusetts 02215, United States.
  • Bhowmick I; Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523-1872, United States.
  • Shores MP; Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523-1872, United States.
  • Daley CJ; Department of Chemistry and Biochemistry, University of California, San Diego , 9500 Gilman Drive, MC 0332, La Jolla, California 92093, United States.
  • Gembicky M; Department of Chemistry and Biochemistry, University of California, San Diego , 9500 Gilman Drive, MC 0332, La Jolla, California 92093, United States.
  • Golen JA; Department of Chemistry and Biochemistry, University of California, San Diego , 9500 Gilman Drive, MC 0332, La Jolla, California 92093, United States.
  • Rheingold AL; Department of Chemistry and Biochemistry, University of California, San Diego , 9500 Gilman Drive, MC 0332, La Jolla, California 92093, United States.
  • Doerrer LH; Department of Chemistry, Boston University , Boston, Massachusetts 02215, United States.
Inorg Chem ; 55(16): 8099-109, 2016 Aug 15.
Article em En | MEDLINE | ID: mdl-27486841
A series of heterobimetallic lantern complexes with the central unit {PtM(SAc)4(NCS)} have been prepared and thoroughly characterized. The {Na(15C5)}[PtM(SAc)4(NCS)] series, 1 (Co), 2 (Ni), 3 (Zn), are discrete compounds in the solid state, whereas the {Na(12C4)2)}[PtM(SAc)4(NCS)] series, 4 (Co), 5 (Ni), 6 (Zn), and 7 (Mn), are ion-separated species. Compound 7 is the first {PtMn} lantern of any bridging ligand (carboxylate, amide, etc.). Monomeric 1-7 have M(2+), necessitating counter cations that have been prepared as {(15C5)Na}(+) and {(12C4)2Na}(+) variants, none of which form extended structures. In contrast, neutral [PtCr(tba)4(NCS)]∞ 8 forms a coordination polymer of {PtCr}(+) units linked by (NCS)(-) in a zigzag chain. All eight compounds have been thoroughly characterized and analyzed in comparison to a previously reported family of compounds. Crystal structures are presented for compounds 1-6 and 8, and solution magnetic susceptibility measurements are presented for compounds 1, 2, 4, 5, and 7. Further structural analysis of dimerized {PtM} units reinforces the empirical observation that greater charge density along the Pt-M vector leads to more Pt···Pt interactions in the solid state. Four structural classes, one new, of {MPt}···{PtM} units are presented. Solid state magnetic characterization of 8 reveals a ferromagnetic interaction in the {PtCr(NCS)} chain between the Cr centers of J/kB = 1.7(4) K.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Inorg Chem Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Inorg Chem Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Estados Unidos