Synthesis and characterization of two novel cobalt (II) phosphine complexes: crystal structures of [CoCl3(Cy2PCH2PCy2H)] and [Co(NO3)2(Cy2PCH2PCy2O)]. Cy = cyclohexyl, C6H11

Kriley CE; Majireck MM; Tobolewski JM; Kelvington LE; Cummings SH; Hershberger SJ; Link JD; Silverio AL; Fanwick PE; Rothwell IP

首页> 外文期刊>Inorganica Chimica Acta >Synthesis and characterization of two novel cobalt (II) phosphine complexes: crystal structures of [CoCl3(Cy2PCH2PCy2H)] and [Co(NO3)2(Cy2PCH2PCy2O)]. Cy = cyclohexyl, C6H11

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Synthesis and characterization of two novel cobalt (II) phosphine complexes: crystal structures of [CoCl3(Cy2PCH2PCy2H)] and [Co(NO3)2(Cy2PCH2PCy2O)]. Cy = cyclohexyl, C6H11

机译：两种新型钴（II）膦配合物的合成与表征：[CoCl3（Cy2PCH2PCy2H）]和[Co（NO3）2（Cy2PCH2PCy2O）]的晶体结构。 Cy =环己基，C6H11

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The complexes [(Cy2PCH2PCy2H)CoCl3] (1) and [(Cy2PCH2PCy2O)Co(NO3)(2)] (2), Cy = cyclohexyl (C6H11), have been prepared and characterized by EPR, UV-Vis, microanalysis and X-ray crystallography. The reaction CoCl2 (.) 6H(2)O and dcpm, dcpm = bis(dicyclohexylphosphino)methane, was found to form the monomeric, four coordinate, thermochromic and paramagnetic complex [(Cy2PCH2PCy2H)CoCl3] (1). Of particular interest is the formation of a zwitterion, or inner salt, in which the dangling phosphine adds a hydrogen atom, giving the phosphorus a +1 formal charge. The molecule adopts a pseudo-tetrahedral geometry around the central cobalt atom to which the cyclohexyl groups bind in an equatorial fashion to the phosphine. The reaction of Co(NO3)(2) (.) 6H(2)O and dcpm in a toluene/methanol/methylene chloride mixture yields the pseudo-octahedral complex [(Cy2PCH2PCy2O)Co(NO3)(2)] (2). The cobalt is in the +2 oxidation state with one of the phosphorus atoms again having a + 1 formal charge. The complex adopts a pseudo-octahedral geometry around the central cobalt atom with the cyclohexyl groups binding in an equatorial fashion to the phosphine similar to [(Cy2PCH2PCy2H)CoCl3]. (C) 2004 Elsevier B.V. All rights reserved.

机译：制备了[[Cy2PCH2PCy2H）CoCl3]（1）和[（Cy2PCH2PCy2O）Co（NO3）（2）]（2）的配合物，Cy =环己基（C6H11），并通过EPR，UV-Vis，微量分析和X表征射线晶体学。发现CoCl2（。）6H（2）O与dcpm的反应（dcpm =双（二环己基膦基）甲烷）形成了单体，四配位，热致变色和顺磁性配合物[（Cy2PCH2PCy2H）CoCl3]（1）。特别令人感兴趣的是两性离子或内盐的形成，其中悬垂的膦添加氢原子，使磷具有+1的形式电荷。该分子在中心钴原子周围采用伪四面体几何形状，环己基以赤道方式结合到膦上。 Co（NO3）（2）（。）6H（2）O和dcpm在甲苯/甲醇/二氯甲烷混合物中的反应产生拟八面体络合物[（Cy2PCH2PCy2O）Co（NO3）（2）]（2）。钴处于+2氧化态，磷原子之一再次具有+1形式电荷。该络合物在中心钴原子周围采用伪八面体几何形状，其中环己基基团以与[（Cy2PCH2PCy2H）CoCl3]相似的赤道形式与膦结合。（C）2004 Elsevier B.V.保留所有权利。

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《Inorganica Chimica Acta》 |2005年第1期|共6页
作者
Kriley CE; Majireck MM; Tobolewski JM; Kelvington LE; Cummings SH; Hershberger SJ; Link JD; Silverio AL; Fanwick PE; Rothwell IP;
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正文语种 eng
中图分类生物体其他化学成分;
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crystal structure complexes; cobalt complexes; phosphine complexes; BIS(DICYCLOHEXYLPHOSPHINO)METHANE DCPM; CO(II);

机译：晶体结构配合物;钴配合物;膦配合物;BIS（二环己基膦基）甲醇DCPM;CO（II）;

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Synthesis and characterization of two novel cobalt (II) phosphine complexes: crystal structures of [CoCl3(Cy2PCH2PCy2H)] and [Co(NO3)2(Cy2PCH2PCy2O)]. Cy = cyclohexyl, C6H11

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