TY - JOUR
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
PY - 1998
Y1 - 1998
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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U2 - 10.1021/ic971544d
DO - 10.1021/ic971544d
M3 - Article
AN - SCOPUS:0001716206
VL - 37
SP - 2717
EP - 2722
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 11
ER -