The Synthesis and Characterization of Two-Dimensional Ferromagnetic Extended Structures Containing High-Spin (S = 5/2) and Low-Spin (S = 1/2) Iron(III) Bridged by Cyanide Groups

Nazzareno Re; Raffaella Crescenzi; Carlo Floriani; Hitoshi Miyasaka; Naohide Matsumoto

The Synthesis and Characterization of Two-Dimensional Ferromagnetic Extended Structures Containing High-Spin (S = ⁵/₂) and Low-Spin (S = ¹/₂) Iron(III) Bridged by Cyanide Groups

Nazzareno Re, Raffaella Crescenzi, Carlo Floriani, Hitoshi Miyasaka, Naohide Matsumoto

Research output: Contribution to journal › Article › peer-review

Abstract

The reaction of [Fe(salen)]⁺ and {A₃[Fe(CN)₆]} (A = NEt₄, K), depending on the countercation A⁺ and on the reaction solvent, led to [(NEt₄){Fe(salen)}₂{Fe(CN)₆}]_n, 4, and [{Fe(salen)}₃{Fe(CN)₆}(MeOH)₂] _n·3nH₂O, 5 [NEt₄ = tetraethylammonium cation, salen = N, N′-ethylenebis(salicylideneiminato) dianion], displaying a similar extended 2D structure. Complex 5 crystallizes in the monoclinic, space group P2₁/n, a = 13.495(7) Å, b = 14.220(9) Å, c = 33.137(5) Å, β = 96.74(2)°, and Z = 4. It assumes a two-dimensional network layer structure consisting of cyclic octanuclear [-Fe(h.s.)-NC-Fe(l.s.)-CN-]₄ units with [Fe(salen)(MeOH)₂]⁺ located between the interlayer as a countercation. Complex 4 exhibits a metamagnetic behavior with a field-induced transition from an antiferromagnetic to a ferromagnetic-like state and a Neel temperature of ca. 6 K.

Original language	English
Pages (from-to)	2717-2722
Number of pages	6
Journal	Inorganic chemistry
Volume	37
Issue number	11
Publication status	Published - 1998 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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The Synthesis and Characterization of Two-Dimensional Ferromagnetic Extended Structures Containing High-Spin (S = ⁵/₂) and Low-Spin (S = ¹/₂) Iron(III) Bridged by Cyanide Groups. / Re, Nazzareno; Crescenzi, Raffaella; Floriani, Carlo; Miyasaka, Hitoshi; Matsumoto, Naohide.

In: Inorganic chemistry, Vol. 37, No. 11, 01.12.1998, p. 2717-2722.

Research output: Contribution to journal › Article › peer-review

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title = "The Synthesis and Characterization of Two-Dimensional Ferromagnetic Extended Structures Containing High-Spin (S = 5/2) and Low-Spin (S = 1/2) Iron(III) Bridged by Cyanide Groups",

abstract = "The reaction of [Fe(salen)]+ and {A3[Fe(CN)6]} (A = NEt4, K), depending on the countercation A+ and on the reaction solvent, led to [(NEt4){Fe(salen)}2{Fe(CN)6}]n, 4, and [{Fe(salen)}3{Fe(CN)6}(MeOH)2] n·3nH2O, 5 [NEt4 = tetraethylammonium cation, salen = N, N′-ethylenebis(salicylideneiminato) dianion], displaying a similar extended 2D structure. Complex 5 crystallizes in the monoclinic, space group P21/n, a = 13.495(7) {\AA}, b = 14.220(9) {\AA}, c = 33.137(5) {\AA}, β = 96.74(2)°, and Z = 4. It assumes a two-dimensional network layer structure consisting of cyclic octanuclear [-Fe(h.s.)-NC-Fe(l.s.)-CN-]4 units with [Fe(salen)(MeOH)2]+ located between the interlayer as a countercation. Complex 4 exhibits a metamagnetic behavior with a field-induced transition from an antiferromagnetic to a ferromagnetic-like state and a Neel temperature of ca. 6 K.",

author = "Nazzareno Re and Raffaella Crescenzi and Carlo Floriani and Hitoshi Miyasaka and Naohide Matsumoto",

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T1 - The Synthesis and Characterization of Two-Dimensional Ferromagnetic Extended Structures Containing High-Spin (S = 5/2) and Low-Spin (S = 1/2) Iron(III) Bridged by Cyanide Groups

AU - Re, Nazzareno

AU - Crescenzi, Raffaella

AU - Floriani, Carlo

AU - Miyasaka, Hitoshi

AU - Matsumoto, Naohide

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N2 - The reaction of [Fe(salen)]+ and {A3[Fe(CN)6]} (A = NEt4, K), depending on the countercation A+ and on the reaction solvent, led to [(NEt4){Fe(salen)}2{Fe(CN)6}]n, 4, and [{Fe(salen)}3{Fe(CN)6}(MeOH)2] n·3nH2O, 5 [NEt4 = tetraethylammonium cation, salen = N, N′-ethylenebis(salicylideneiminato) dianion], displaying a similar extended 2D structure. Complex 5 crystallizes in the monoclinic, space group P21/n, a = 13.495(7) Å, b = 14.220(9) Å, c = 33.137(5) Å, β = 96.74(2)°, and Z = 4. It assumes a two-dimensional network layer structure consisting of cyclic octanuclear [-Fe(h.s.)-NC-Fe(l.s.)-CN-]4 units with [Fe(salen)(MeOH)2]+ located between the interlayer as a countercation. Complex 4 exhibits a metamagnetic behavior with a field-induced transition from an antiferromagnetic to a ferromagnetic-like state and a Neel temperature of ca. 6 K.

AB - The reaction of [Fe(salen)]+ and {A3[Fe(CN)6]} (A = NEt4, K), depending on the countercation A+ and on the reaction solvent, led to [(NEt4){Fe(salen)}2{Fe(CN)6}]n, 4, and [{Fe(salen)}3{Fe(CN)6}(MeOH)2] n·3nH2O, 5 [NEt4 = tetraethylammonium cation, salen = N, N′-ethylenebis(salicylideneiminato) dianion], displaying a similar extended 2D structure. Complex 5 crystallizes in the monoclinic, space group P21/n, a = 13.495(7) Å, b = 14.220(9) Å, c = 33.137(5) Å, β = 96.74(2)°, and Z = 4. It assumes a two-dimensional network layer structure consisting of cyclic octanuclear [-Fe(h.s.)-NC-Fe(l.s.)-CN-]4 units with [Fe(salen)(MeOH)2]+ located between the interlayer as a countercation. Complex 4 exhibits a metamagnetic behavior with a field-induced transition from an antiferromagnetic to a ferromagnetic-like state and a Neel temperature of ca. 6 K.

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