Unprecedented Charge Transfer Induced Spin Transition in an Fe-Os Cluster

High 'n low: The novel {[Fe(tmphen)2]3[Os(CN)6]2} complex (see structure) is the first example of a cluster in which a high‐spin FeIII ion is in a coordination environment of four imine nitrogen atoms and two N‐coordinated cyanides. Magnetic studies reveal an unprecedented type of reversible ch...

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Published inAngewandte Chemie (International ed.) Vol. 49; no. 8; pp. 1410 - 1413
Main Authors Hilfiger, Matthew G, Chen, Meimei, Brinzari, Tatiana V, Nocera, Tanya M, Shatruk, Michael, Petasis, Doros T, Musfeldt, Janice L, Achim, Catalina, Dunbar, Kim R
Format Journal Article
LanguageEnglish
Published Weinheim Wiley-VCH Verlag 15.02.2010
WILEY-VCH Verlag
WILEY‐VCH Verlag
Subjects
charge transfer
cyanide ligand
iron complexes
spin crossover
spin transition
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Summary:High 'n low: The novel {[Fe(tmphen)2]3[Os(CN)6]2} complex (see structure) is the first example of a cluster in which a high‐spin FeIII ion is in a coordination environment of four imine nitrogen atoms and two N‐coordinated cyanides. Magnetic studies reveal an unprecedented type of reversible charge transfer induced spin transition (CTIST) between the low‐spin FeIINCOsIII and high‐spin FeIIINCOsII systems.
Bibliography:http://dx.doi.org/10.1002/anie.200906264
istex:DFACD71225C8AFB41040B219DD7A74CBA7499B15
ACS-PRF - No. AC3-44200
ArticleID:ANIE200906264
ark:/67375/WNG-7G6K46KZ-S
The authors acknowledge Carolina Avendaño for useful discussions. This research was supported by the National Science Foundation (CHE-0610019 to K.R.D., DMR-0600089 to J.L.M.), the Department of Energy (DE-FG03-02ER45999 to K.R.D.) and the ACS-PRF Fund (AC3-44200 to C.A.). Crystallographic parameters can be found in the Supporting Information (Table S4) and cif files under CSD numbers 753301 and 753302.
Department of Energy - No. DE-FG03-02ER45999
National Science Foundation - No. CHE-0610019; No. DMR-0600089
The authors acknowledge Carolina Avendaño for useful discussions. This research was supported by the National Science Foundation (CHE‐0610019 to K.R.D., DMR‐0600089 to J.L.M.), the Department of Energy (DE‐FG03‐02ER45999 to K.R.D.) and the ACS‐PRF Fund (AC3‐44200 to C.A.). Crystallographic parameters can be found in the Supporting Information (Table S4) and cif files under CSD numbers 753301 and 753302.
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200906264