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A cyanide-bridged FeIII-MnII heterobimetallic one-dimensional coordination polymer: synthesis, crystal structure, experimental and theoretical magnetism investigation.
Lan, Wenlong; Zhou, Zhen; Li, Jie; Dou, Yong; Hao, Xiaoyun; Yang, Lu; Liu, Hui; Li, Dacheng; Liu, Qingyun; Zhang, Daopeng.
Afiliación
  • Lan W; College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China.
  • Zhou Z; College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China.
  • Li J; College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China.
  • Dou Y; College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China.
  • Hao X; College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China.
  • Yang L; College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China.
  • Liu H; College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China.
  • Li D; College of Chemical and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China.
  • Liu Q; College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266510, People's Republic of China.
  • Zhang D; College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China.
Acta Crystallogr C Struct Chem ; 75(Pt 11): 1475-1481, 2019 11 01.
Article en En | MEDLINE | ID: mdl-31686657
A new cyanide-bridged FeIII-MnII heterobimetallic coordination polymer (CP), namely catena-poly[[[N,N'-(1,2-phenylene)bis(pyridine-2-carboxamidato)-κ4N,N',N'',N''']iron(III)]-µ-cyanido-κ2C:N-[bis(4,4'-bipyridine-κN)bis(methanol-κO)manganese(II)]-µ-cyanido-κ2N:C], {[FeMn(C18H12N4O2)(CN)2(C10H8N2)2(CH3OH)2]ClO4}n, (1), was prepared by the self-assembly of the trans-dicyanidoiron(III)-containing building block [Fe(bpb)(CN)2]- [bpb2- = N,N'-(1,2-phenylene)bis(pyridine-2-carboxamidate)], [Mn(ClO4)2]·6H2O and 4,4'-bipyridine, and was structurally characterized by elemental analysis, IR spectroscopy, single-crystal X-ray crystallography and powder X-ray diffraction (PXRD). Single-crystal X-ray diffraction analysis shows that CP 1 possesses a cationic linear chain structure consisting of alternating cyanide-bridged Fe-Mn units, with free perchlorate as the charge-balancing anion, which can be further extended into a two-dimensional supramolecular sheet structure via inter-chain π-π interactions between the 4,4'-bipyridine ligands. Within the chain, each MnII ion is six-coordinated by an N6 unit and is involved in a slightly distorted octahedral coordination geometry. Investigation of the magnetic properties of 1 reveals an antiferromagnetic coupling between the cyanide-bridged FeIII and MnII ions. A best fit of the magnetic susceptibility based on the one-dimensional alternating chain model leads to the magnetic coupling constants J1 = -1.35 and J2 = -1.05 cm-1, and the antiferromagnetic coupling was further confirmed by spin Hamiltonian-based density functional theoretical (DFT) calculations.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Acta Crystallogr C Struct Chem Año: 2019 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Acta Crystallogr C Struct Chem Año: 2019 Tipo del documento: Article Pais de publicación: Reino Unido