TY - JOUR
T1 - Correlation between the magnetic behaviors and dimensionality of intermolecular interactions in Fe(III) spin crossover compounds
AU - Takahashi, Kazuyuki
AU - Sato, Tetsuya
AU - Mori, Hatsumi
AU - Tajima, Hiroyuki
AU - Sato, Osamu
N1 - Funding Information:
K.T. is grateful to Dr. S. Krivickas for reading the manuscript and to the Instrument Center of Institute for Molecular Science for the use of Rigaku CMF007 Mercury CCD system for X-ray crystal analyses. This work was partly supported by a Grant-in-Aid for Scientific Research on the Priority Area of Molecular Conductors (No. 18028024) and on Innovative Areas of Molecular Degrees of Freedom (No. 20110007), and a Grant-in-Aid for Young Scientists (B) (No. 19750107) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2010/6/1
Y1 - 2010/6/1
N2 - A novel Fe(III) spin crossover (SCO) complex with a linear I3 anion, [Fe(qsal)2]I3 1 [qsalH=N-(8-quinolyl)- salicylaldimine], was prepared and characterized by the magnetic susceptibilities and crystal structures. 1 exhibited a gradual SCO conversion (TSCO=ca.240K). The crystal structural analyses for 1 at 50 and 293 K revealed that the two-dimensional (2D) network was constructed by intermolecular π-π interactions between π-ligands of an Fe(III) cation. Since the related complex, [Fe(qsal)2]NCS 2, was known to show a cooperative SCO transition, the crystal structure of 2 at 293K was also determined. 2 possessed 2D SCO cation arrangement similar to 1, whereas potential π-π interactions between 2D networks in 2 existed. The dimensionality of intermolecular interactions was closely related to SCO behaviors and pressure effects on SCO compounds.
AB - A novel Fe(III) spin crossover (SCO) complex with a linear I3 anion, [Fe(qsal)2]I3 1 [qsalH=N-(8-quinolyl)- salicylaldimine], was prepared and characterized by the magnetic susceptibilities and crystal structures. 1 exhibited a gradual SCO conversion (TSCO=ca.240K). The crystal structural analyses for 1 at 50 and 293 K revealed that the two-dimensional (2D) network was constructed by intermolecular π-π interactions between π-ligands of an Fe(III) cation. Since the related complex, [Fe(qsal)2]NCS 2, was known to show a cooperative SCO transition, the crystal structure of 2 at 293K was also determined. 2 possessed 2D SCO cation arrangement similar to 1, whereas potential π-π interactions between 2D networks in 2 existed. The dimensionality of intermolecular interactions was closely related to SCO behaviors and pressure effects on SCO compounds.
KW - Cooperativity
KW - Crystal structure
KW - Fe(III) complex
KW - Intermolecuar interaction
KW - Pressure effect
KW - Spin crossover
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U2 - 10.1016/j.physb.2009.10.029
DO - 10.1016/j.physb.2009.10.029
M3 - Article
AN - SCOPUS:79951513524
VL - 405
SP - S65-S68
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 11 SUPPL.
ER -