Unprecedented deca-, penta- and poly-heteronuclear complexes with hexacyanometallates and 2-(hydroxymethyl)pyridine
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Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The reactions of hexacyanometallates (Fe(III) and Co(III)) and 2-(hydroxymethyl)pyridine (hmpy) with ZnCl2 and CdCl2 affords the decanuclear [Cd-6(hmpy)(12)Fe-2(mu-CN)(8)(CN)(4)Fe-2(mu-CN)(4)(CN)(8)] complex (1), the pentanu-clear [Cd-3(hmpy)(6)Co-2(mu-CN)(6)(CN)(6)] cage complex (2) and the 3D framework [Zn(hmpy)(2)Zn-2(hmpy)(2)Co-2(mu-CN)(8)(CN)(4)]n (3). These new cyanide-bridged heteronuclear complexes have been characterised by FT-IR and Raman spectra, together with thermal and elemental analyses. Their structures have been determined by single crystal X-ray diffraction (SC-XRD) and powder X-ray diffraction (PXRD) analyses. In 1, the Cd(II) and Fe(III) centers are arranged alternately at the four corners of a rhombic core, and the cyanide ligands coordinate to the four metal centers of this core in the bridging mode. Adjacent tetranuclear rhombic cores further extend to a decaheteronuclear cluster structure via bridging cyanide ligands. Complex 2 has a pentaheteronuclear cage structure and the neighboring two Co(III) and three Cd(II) centers are bridged by six cyanide ligands. Complex 3 features an unprecedented 3D heterometallic Co(III)-Zn(II) framework based on cyanide ligands.
Açıklama
Anahtar Kelimeler
Hexacyanocobaltate(III) complex, Hexacyanoferrate(III) complex, 2-(Hydroxymethyl)pyridine complex, Coordination polymer, Heteronuclear complex
Kaynak
Polyhedron
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
210
