Synthesis, crystal structure, magnetic and vibrational properties of formamidine-templated Co and Fe formates

Aneta Ciupa , Mirosław Mączka , Anna Gagor , Adam Pikul , Edyta Kucharska , Jerzy Hanuza , Adam Sieradzki


Two novel Co and Fe formates, [NH2-CH-NH2][Co(HCOO)(3)] and [NH2-CH-NH2][Fe(HCOO)(3)], containing formamidinium cations [FMD+, NH2-CH+-NH2] have been prepared under solvothermal conditions. Crystal structure determination shows that these compounds are isostructural and crystallize in the orthorhombic structure, space group Pnna. The FMD+ cations, located in the cavities of the metal formate framework, form extensive N-H center dot center dot center dot O hydrogen bonding with the framework and they are ordered at room temperature. The divalent cations have octahedral geometry and are bridged by the formate ions in an anti-anti mode of coordination. A magnetic study revealed that these compounds are weak ferromagnets, with the critical temperatures of 13.0 K (Co) and 17.0 K (Fe). Based on IR and Raman data, an assignment of the observed modes has been proposed.
Author Aneta Ciupa
Aneta Ciupa,,
, Mirosław Mączka - [inna]
Mirosław Mączka,,
- inna
, Anna Gagor
Anna Gagor,,
, Adam Pikul
Adam Pikul,,
, Edyta Kucharska (EaE / IChaFT / DBCh)
Edyta Kucharska,,
- Department of Bioorganic Chemistry
, Jerzy Hanuza
Jerzy Hanuza,,
, Adam Sieradzki
Adam Sieradzki,,
Journal seriesPolyhedron, ISSN 0277-5387, (A 30 pkt)
Issue year2015
Publication size in sheets0.4
Keywords in EnglishMetal organic framework, Structure, Magnetization, Infrared, Raman
ASJC Classification2505 Materials Chemistry; 1604 Inorganic Chemistry; 1606 Physical and Theoretical Chemistry
Languageen angielski
Synthesis_crystal_structure_magnetic_and_vibrational_properties.pdf 1,53 MB
Score (nominal)30
ScoreMinisterial score = 25.0, 02-07-2019, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 02-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2015 = 0.793; WoS Impact Factor: 2015 = 2.108 (2) - 2015=1.973 (5)
Citation count*30 (2019-12-07)
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