首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >Two fac-tricarbonylrhenium(I) azadipyrromethene (ADPM) complexes: Ligand-substitution effect on crystal structure
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Two fac-tricarbonylrhenium(I) azadipyrromethene (ADPM) complexes: Ligand-substitution effect on crystal structure

机译:两种fac-tri羰基r(I)氮杂二吡咯甲烷(ADPM)配合物:配体取代对晶体结构的影响

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摘要

The crystal structures of fac-(acetonitrile-κN)(2-{[3,5-bis(4-methoxyphenyl)-2H-pyrrol-2-ylidene-κN1]amino}-3,5-bis(4-!?tlsb=0.2ptmethoxyphenyl)-1H-pyrrol-1-ido-κN1)tricarbonylrhenium(I)-hexane-acetonitrile (2/1/2), [Re(C36H30N3O4)(CH3CN)(CO)3]·0.5C6H14·CH3CN, (2), and fac-(2-{[3,5-bis(4-methoxyphenyl)-2H-pyrrol-2-ylidene-κN1]amino}-3,5-bis(4-methoxyphenyl)-1H-pyrrol-1-ido-κN1)tricarbonyl(dimethyl sulfoxide-κO)rhenium(I), [Re(C36H30N3O4)(C2H6OS)(CO)3], (3), at 150K are reported. Both complexes display a distorted octahedral geometry, with a fac-Re(CO)3 arrangement and one azadipyrromethene (ADPM) chelating ligand in the equatorial position. One solvent molecule completes the coordination sphere of the ReI centre in the remaining axial position. The ADPM ligand shows high flexibility upon coordination, while retaining its π-delocalized nature. Bond length and angle analyses indicate that the differences in the geometry around the ReI centre in (2) and (3), and those found in three reported fac-Re(CO)3-ADPM complexes, are dictated mainly by steric factors and crystal packing. Both structures display intramolecular C-H?N hydrogen bonding. Intermolecular interactions of the Csp2-H?π and Csp2-H?O(carbonyl) types link the discrete monomers into extended chains.
机译:fac-(乙腈-κN)(2-{[[3,5-双(4-甲氧基苯基)-2H-吡咯-2-亚烷基-κN1]氨基)-3,5-双(4- <! [tlsb = 0.2pt>甲氧基苯基)-1H-吡咯-1-基-κN1)三羰基hen(I)-己烷-乙腈(2/1/2),[Re(C36H30N3O4)(CH3CN)(CO)3]·0.5 C6H14·CH3CN,(2)和fac-(2-{[3,5-双(4-甲氧基苯基)-2H-吡咯-2-亚烷基-κN1]氨基} -3,5-双(4-甲氧基苯基)报道了在150K下-1H-吡咯-1-基-κN1)三羰基(二甲基亚砜-κO)r(I)[Re(C36H30N3O4)(C2H6OS)(CO)3],(3)。两种配合物均显示出扭曲的八面体几何形状,具有fac-Re(CO)3排列和位于赤道位置的azadipyrromethene(ADPM)螯合配体。一个溶剂分子在剩余的轴向位置完成ReI中心的配位球。 ADPM配体在配位时显示出很高的灵活性,同时保留了其π-离域的性质。键长和角度分析表明(2)和(3)中ReI中心周围的几何形状的差异以及在三个报道的fac-Re(CO)3-ADPM配合物中发现的差异主要由空间因素和晶体决定填料。两种结构均显示出分子内C-H2N氢键。 Csp 2 -H 2π和Csp 2 -H 2 O(羰基)类型的分子间相互作用将离散的单体连接成延伸链。

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