首页> 外文期刊>Chemistry: A European journal >Hexagonal supramolecular architectures from ferrocenium cations incorporating [Ni(mnt)(2)](-) columns: Structures and properties of [alkylferrocene][Ni(mnt)(2)](-) charge-transfer complexes (mnt = maleonitriledithiolate)
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Hexagonal supramolecular architectures from ferrocenium cations incorporating [Ni(mnt)(2)](-) columns: Structures and properties of [alkylferrocene][Ni(mnt)(2)](-) charge-transfer complexes (mnt = maleonitriledithiolate)

机译:含[Ni(mnt)(2)](-)柱的二茂铁阳离子的六边形超分子结构:[烷基二茂铁] [Ni(mnt)(2)](-)电荷转移配合物的结构和性质(mnt =马来腈三硫代磺酸盐)

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摘要

The crystal architecture, magnetic properties, and thermodynamic properties of [n-butylferrocene] [Ni(mnt)(2)] (1), [tert-butylferrocene][Ni(mnt)(2)] (2), [1,1'-diethylferrocene][Ni(mnt)(2)] (3), and [1,1'-diisopropylferrocene][Ni(mnt),] (4) were investigated (mnt = maleonitriledithiolate). These complexes exhibit a unique supra-molecular structure in which the ferrocenium cations constitute honeycomb-like assembled structures surrounding columns of the anions. For 1, the cations form a dimer through a very short intermolecular ferrocene-ferrocene distance of 3.28 angstrom, which mediates an antiferromagnetic interaction with a singlet-triplet energy gap of 5 K. First-order phase transitions occur in 1-3 at 364, 361, and 350 K, respectively, accompanied by thermal hysteresis.
机译:[正丁基二茂铁] [Ni(mnt)(2)](1),[叔丁基二茂铁] [Ni(mnt)(2)](2),[1]的晶体结构,磁性和热力学性质研究了1'-二乙基二茂铁] [Ni(mnt)(2)](3)和[1,1'-二异丙基二茂铁] [Ni(mnt),](4)(mnt =顺丁烯二腈)。这些配合物表现出独特的超分子结构,其中二茂铁阳离子构成围绕阴离子柱的蜂窝状组装结构。对于1,阳离子通过非常短的分子间二茂铁-二茂铁间距3.28埃形成二聚体,介导反铁磁相互作用且单重态-三重态能隙为5K。一阶相变发生在1-3的364, 361和350 K分别伴有热滞。

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