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Synthesis of Microcrystals of the [Fe(L)(bipy)] Spin Crossover Coordination Polymer in a Poly-4-vinylpyridine Matrix

Title data

Göbel, Christoph ; Palamarciuc, Tatiana ; Lochenie, Charles ; Weber, Birgit:
Synthesis of Microcrystals of the [Fe(L)(bipy)] Spin Crossover Coordination Polymer in a Poly-4-vinylpyridine Matrix.
In: Chemistry : an Asian Journal. Vol. 9 (2014) Issue 8 . - pp. 2232-2238.
ISSN 1861-471X
DOI: https://doi.org/10.1002/asia.201402144

Abstract in another language

Microcrystals of the spin-crossover coordination polymer [FeL(bipy)] (L=[3,3′]-[1,2-phenylenebis(iminoethylidyne)]bis-(2,4-pentanedionato)(2-), bipy=4,4′-bipyridine) have been prepared in a poly(4-vinylpyridine) (P4VP) matrix. This was done by sequential addition of the iron(II) precursor complex and the bridging ligand bipy to a P4VP matrix, and by repetition of this cycle. The obtained composite material was characterized using TEM, SEM, XRPD, and SQUID measurements, and Mössbauer spectroscopy. With repeating cycles, the size of the [FeL(bipy)] crystals in the P4VP matrix increases from submicrometer to micrometer dimensions. A strong dependence on the number of cycles is observed. Above a critical size and concentration, the microcrystals show the same cooperative spin transition as the bulk material. No indication for a gradual spin transition is observed, but the remaining iron centers are either high-spin or low-spin depending on the coordination environment.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry IV > Chair Anorganic Chemistry IV - Univ.-Prof. Dr. Birgit Weber
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry IV
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 25 Jul 2017 13:33
Last Modified: 05 Feb 2018 13:06
URI: https://eref.uni-bayreuth.de/id/eprint/38811