A hydrogen bond motif giving a variety of supramolecular assembly structures and spin-crossover behaviors

Koshiro Nishi; Naohide Matsumoto; Seiichiro Iijima; Malcolm A. Halcrow; Yukinari Sunatsuki; Masaaki Kojima

doi:10.1021/ic201993z

A hydrogen bond motif giving a variety of supramolecular assembly structures and spin-crossover behaviors

Koshiro Nishi, Naohide Matsumoto, Seiichiro Iijima, Malcolm A. Halcrow, Yukinari Sunatsuki, Masaaki Kojima

Advanced Science Research Center

Research output: Contribution to journal › Article

20 Citations (Scopus)

Abstract

A series of spin-crossover (SCO) iron(II) compounds, fac-[Fe ^II(HL^R)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 HL^R denotes a series of [(2-methylimidazol-4-yl)methylidene]monoalkylamines. The cations fac-[Fe ^II(HL^R)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.

Original language	English
Pages (from-to)	11303-11305
Number of pages	3
Journal	Inorganic Chemistry
Volume	50
Issue number	22
DOIs	https://doi.org/10.1021/ic201993z
Publication status	Published - Nov 21 2011

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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Nishi, K., Matsumoto, N., Iijima, S., Halcrow, M. A., Sunatsuki, Y., & Kojima, M. (2011). A hydrogen bond motif giving a variety of supramolecular assembly structures and spin-crossover behaviors. Inorganic Chemistry, 50(22), 11303-11305. https://doi.org/10.1021/ic201993z

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title = "A hydrogen bond motif giving a variety of supramolecular assembly structures and spin-crossover behaviors",

abstract = "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.",

author = "Koshiro Nishi and Naohide Matsumoto and Seiichiro Iijima and Halcrow, {Malcolm A.} and Yukinari Sunatsuki and Masaaki Kojima",

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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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