Vacuum-evaporable spin-crossover complexes: physicochemical properties in the crystalline bulk and in thin films deposited from the gas phase

Vacuum-evaporable spin-crossover complexes: physicochemical properties in the crystalline bulk and in thin films deposited from the gas phase
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真空蒸发自旋交叉络合物:晶体块体和气相沉积薄膜的物理化学性质

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发表时间:
2015
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影响因子:
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通讯作者:
F. Tuczek
F. Tuczek
中科院分区:
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文献类型:
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作者:
H. Naggert;J. Rudnik;Lalminthang Kipgen;M. Bernien;Fabian Nickel;L. M. Arruda;W. Kuch;C. Näther;F. Tuczek

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制备了四种含功能化1,10-菲咯啉(phen)配体的自旋交叉配合物[Fe(H2 Bpz 2)2(phen)](H2 Bpz 2 =二氢双(吡唑基)硼酸盐; 2)的类似物,即,[Fe(H2 Bpz 2)2(L)],L = 4-甲基-1,10-菲咯啉(3)、5-氯-1,10-菲咯啉(4)、4,7-二氯-1,10-菲咯啉(5)和4,7-二甲基-1,10-菲咯啉(6)。该系统进行了研究,通过磁化率测量和一系列的光谱在固态和物理气相沉积(PVD)获得的薄膜。热和光诱导的SCO行为观察到3-6的薄膜。相比之下,固态的热SCO仅发生在3和4中,但不存在于5和6中。这些研究结果进行了讨论,在光的合作和分子间的相互作用。
Four analogues of the spin-crossover complex [Fe(H2Bpz2)2(phen)] (H2Bpz2 = dihydrobis(pyrazolyl)borate; 2) containing functionalized 1,10-phenanthroline (phen) ligands have been prepared; i.e., [Fe(H2Bpz2)2(L)], L = 4-methyl-1,10-phenanthroline (3), 5-chloro-1,10-phenanthroline (4), 4,7-dichloro-1,10-phenanthroline (5), and 4,7-dimethyl-1,10-phenanthroline (6). The systems are investigated by magnetic susceptibility measurements and a range of spectroscopies in the solid state and in thin films obtained by physical vapour deposition (PVD). Thermal as well as light-induced SCO behaviour is observed for 3–6 in the films. By contrast, thermal SCO in the solid state occurs only for 3 and 4 but is absent for 5 and 6. These findings are discussed in the light of cooperative and intermolecular interactions.
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发表时间: 2012-01-01
影响因子: 16.6
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