TY - JOUR
T1 - A hydrogen bond motif giving a variety of supramolecular assembly structures and spin-crossover behaviors
AU - Nishi, Koshiro
AU - Matsumoto, Naohide
AU - Iijima, Seiichiro
AU - Halcrow, Malcolm A.
AU - Sunatsuki, Yukinari
AU - Kojima, Masaaki
PY - 2011/11/21
Y1 - 2011/11/21
N2 - A series of spin-crossover (SCO) iron(II) compounds, fac-[Fe II(HLR)3]Cl•PF6 [R = methyl (Me, 1), ethyl (Et, 2), n-propyl (n-Pr, 3), n-butyl (n-Bu, 4), and n-pentyl (n-Pen, 5)], were synthesized, where HLR denotes a series of [(2-methylimidazol-4-yl)methylidene]monoalkylamines. The cations fac-[Fe II(HLR)3]2+ and chloride anions associate through 3:3 imidazole•••chloride hydrogen bonding. This hydrogen-bonding motif gives rise to a variety of assembly structures consisting of a one-dimensional ladder for 3 and 4, two kinds of two-dimensional networks for 1 and 2, and a cubane-like structure for 5. The compounds exhibit various types of SCO transitions between high-spin (S = 2) and low-spin (S = 0) states as a result of their intermolecular interactions.
AB - A series of spin-crossover (SCO) iron(II) compounds, fac-[Fe II(HLR)3]Cl•PF6 [R = methyl (Me, 1), ethyl (Et, 2), n-propyl (n-Pr, 3), n-butyl (n-Bu, 4), and n-pentyl (n-Pen, 5)], were synthesized, where HLR denotes a series of [(2-methylimidazol-4-yl)methylidene]monoalkylamines. The cations fac-[Fe II(HLR)3]2+ and chloride anions associate through 3:3 imidazole•••chloride hydrogen bonding. This hydrogen-bonding motif gives rise to a variety of assembly structures consisting of a one-dimensional ladder for 3 and 4, two kinds of two-dimensional networks for 1 and 2, and a cubane-like structure for 5. The compounds exhibit various types of SCO transitions between high-spin (S = 2) and low-spin (S = 0) states as a result of their intermolecular interactions.
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U2 - 10.1021/ic201993z
DO - 10.1021/ic201993z
M3 - Article
C2 - 22026550
AN - SCOPUS:81255142497
VL - 50
SP - 11303
EP - 11305
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 22
ER -