Synthesis and characterization of a family of Fe(II) tetrazole complexes [Fe(C6mtz)6]X2 (X = BF4-, ClO4-, PF6-)

被引：7

作者：

Tafili-Kryeziu, Myrvete ^{[1
]}

Caneschi, Andrea ^{[2
,3
]}

Fittipaldi, Maria ^{[3
,4
]}

Spina, Gabriele ^{[3
,4
]}

Lantieri, Marco ^{[5
]}

Weil, Matthias ^{[6
]}

Hasegawa, Miki ^{[7
]}

Linert, Wolfgang ^{[1
]}

机构：

[1] Vienna Univ Technol, Inst Appl Synthet Chem, A-1040 Vienna, Austria

[2] Univ Florence, LAMM, Dipartimento Chim, Sesto Fiorentino, Fi, Italy

[3] Univ Florence, UdR INSTM, Sesto Fiorentino, Fi, Italy

[4] Univ Florence, LAMM, Dipartimento Fis & Astron, Sesto Fiorentino, Fi, Italy

[5] CNR, Ist Sistemi Complessi, Sesto Fiorentino, Fi, Italy

[6] Vienna Univ Technol, Inst Chem Technol & Analyt, A-1040 Vienna, Austria

[7] Aoyama Gakuin Univ, Coll Sci & Engn, Sagamihara, Kanagawa, Japan

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2015年 / 68卷 / 19期

关键词：

Fe(II) complexes; Tetrazole; Magnetic properties; Temperature-dependent Far-IR spectroscopy; Mossbauer spectroscopy; SPIN-TRANSITION PROPERTIES; CROSSOVER PHENOMENON; PRESSURE; MAGNETIZATION;

D O I：

10.1080/00958972.2015.1077951

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Based on 1-(cyclohexylmethyl)-1H-tetrazole (C(6)mtz), a series of mononuclear iron(II) spin-crossover complexes with the general formula [Fe(C(6)mtz)(6)]X-2, where X is the non-coordinating anion BF4- (1), ClO4- (2), or PF6- (3), have been synthesized and characterized. Temperature-dependent magnetic susceptibility measurements for 1, 2, and 3 show reversible one-step spin crossover (SCO) behavior between high-spin (HS, S = 2) and low-spin (LS, S = 0) states without hysteresis. The PF6- compound shows spin transition at T-1/2 = 213 K at a considerably higher temperature than the other compounds, BF4- (T-1/2 = 126 K) and ClO4- (T-1/2 = 119 K). Temperature-dependent Far-IR and Mossbauer spectra of 2 and 3 were compared with the measured magnetic susceptibility and confirm the one-step SCO behavior of the compounds.

引用

页码：3457 / 3471

页数：15

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