A new spin crossover heterometallic Fe(II)Ag(I) coordination polymer with the [Ag(2)(CN)(3)](-) unit: crystallographic and magnetic study

The novel bimetallic Fe(II)Ag(I) thermal-induced spin crossover coordination polymer {Fe(II)(3,5-dimethylpyridine)(2)[Ag(I)(2)(CN)(3)][Ag(I)(CN)(2)]}(n) was synthesized by one-pot reactions between 3,5-dimethylpyridine and K[Ag(I)(CN)(2)] in the presence of Fe(II) salt (FeSO(4).(NH(4))(2)SO(4).6H(2)...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2010-02, Vol.39 (7), p.1786-1790
Main Authors: Kosone, Takashi, Suzuki, Yusuke, Ono, Syota, Kanadani, Chikahide, Saito, Toshiaki, Kitazawa, Takafumi
Format: Article
Language:English
Subjects:
Crystallography, X-Ray
Cyanides - chemistry
Iron - chemistry
Magnetics
Models, Molecular
Organometallic Compounds - chemical synthesis
Organometallic Compounds - chemistry
Polymers - chemistry
Silver - chemistry
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Summary:The novel bimetallic Fe(II)Ag(I) thermal-induced spin crossover coordination polymer {Fe(II)(3,5-dimethylpyridine)(2)[Ag(I)(2)(CN)(3)][Ag(I)(CN)(2)]}(n) was synthesized by one-pot reactions between 3,5-dimethylpyridine and K[Ag(I)(CN)(2)] in the presence of Fe(II) salt (FeSO(4).(NH(4))(2)SO(4).6H(2)O). Magnetic studies demonstrate the occurrence of a spin transition. The crystal structure has been studied at 293 K and 80 K. The compound is made up of unprecedented three-dimensional networks topology of Fe(II) ions bridged by binuclear [Ag(I)(2)(CN)(3)](-) and mononuclear [Ag(I)(CN)(2)](-) units; [Ag(I)(2)(CN)(3)](-) anion is very rare. In this complex, the presence of the Ag(I) ions plays a significant role in increasing the dimensionality and cooperatively due to the triangular argentophilic interactions.
ISSN:1477-9234
DOI:10.1039/b910354f