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首页> 外文期刊>Organometallics >Novel organometallic building blocks for crystal engineering. Synthesis and structural characterization of the dicarboxylic acid [Cr-0(eta(6)-C6H5COOH)(2)], of two polymorphs of its oxidation derivative [Cr-I(eta(6)-C6H5COOH)(2)](+)[PF6](-), and of t
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Novel organometallic building blocks for crystal engineering. Synthesis and structural characterization of the dicarboxylic acid [Cr-0(eta(6)-C6H5COOH)(2)], of two polymorphs of its oxidation derivative [Cr-I(eta(6)-C6H5COOH)(2)](+)[PF6](-), and of t

机译:用于晶体工程的新型有机金属砌块。氧化衍生物[Cr-1(eta(6)-C6H5COOH)(2)的两个多晶型物二羧酸[Cr-0(eta(6)-C6H5COOH)(2)]的合成和结构表征)[PF6](-)和t

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摘要

The synthesis and Structural characterization of the neutral diamagnetic organometallic dicarboxylic acid [Cr-0(eta (6)-C6H5COOH)(2)] (1) is reported. Oxidation of 1 by oxygen leads to formation of the paramagnetic dicarboxylic acid cation [Cr-I(eta (6)-C6H5COOH)(2)](+) (2), which has been isolated as the [PF6](-) salt in two crystalline polymorphic modifications, a monoclinic form alpha and a triclinic form beta. The neutral zwitterionic form [CrI(eta (6)-C6H5COOH)(eta (6)-C6H5-COOH] (3) has been obtained in a cocrystal with [NH4][PF6] upon treatment of the acid salt [Cr-I(eta (6)-C6H5COOH)(2)] + [PF6]-with ammonia. The hydrogen bonding interactions established by the neutral and cationic acids are discussed and compared with those observed in the zwitterionic form and in the related complexes Fe-II(eta5-C5H4COOH)(2)] and [Co-III(eta (5)-C5H4-COOH)(2)+[PF6](-). [References: 53]
机译:报道了中性反磁性有机金属二羧酸[Cr-0(eta(6)-C6H5COOH)(2)](1)的合成和结构表征。氧将1氧化会导致形成顺磁性二羧酸阳离子[Cr-I(eta(6)-C6H5COOH)(2)](+)(2),已分离为[PF6](-)盐有两种结晶多晶型修饰,单斜晶型α和三斜晶型β。处理酸盐[Cr-1]后,在与[NH4] [PF6]的共晶中获得中性两性离子形式[CrI(eta(6)-C6H5COOH)(eta(6)-C6H5-COOH)(3) (eta(6)-C6H5COOH)(2)] + [PF6]-与氨。讨论并比较了由中性和阳离子酸建立的氢键相互作用,并将其与两性离子形式和相关配合物Fe-II中观察到的(eta5-C5H4COOH)(2)]和[Co-III(eta(5)-C5H4-COOH)(2)+ [PF6](-)。[参考:53]

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