通过二核、三核和四核有机锡结构单元的Sn-O-Sn桥连进行分子笼组装：扩展双梯结构中的间距
Molecular Cage Assembly by Sn-O-Sn Bridging of Di-, Tri- and Tetranuclear Organotin Tectons: Extending the Spacing in Double Ladder Structures.
作者信息
Rojas-León Irán, Gómez-Jaimes Gelen, Montes-Tolentino Pedro, Hiller Wolf, Alnasr Hazem, Rodríguez-Molina Braulio, Hernández-Ahuactzi Irán F, Beltrán Hiram, Jurkschat Klaus, Höpfl Herbert
机构信息
Centro de Investigaciones Químicas, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos, 62209, México.
Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, 44221, Dortmund, Germany.
出版信息
Chemistry. 2021 Aug 25;27(48):12276-12283. doi: 10.1002/chem.202101055. Epub 2021 Jun 23.
Hydrolysis reactions of di- and trinuclear organotin halides yielded large novel cage compounds containing Sn-O-Sn bridges. The molecular structures of two octanuclear tetraorganodistannoxanes showing double-ladder motifs, viz., [{Me SiCH (Cl)SnCH YCH Sn(OH)CH SiMe } (μ-O) ] [1, Y=p-(Me) SiC H -C H Si(Me) ] and [{Me SiCH (I)SnCH YCH Sn(OH)CH SiMe } (μ-O) ] ⋅0.48 I [2⋅0.48 I , Y=p-(Me) SiC H -C H Si(Me) ], and the hexanuclear cage-compound 1,3,6-C H (p-C H Si(Me) CH Sn(R) OSn(R) CH Si(Me) C H -p) C H -1,3,6 (3, R=CH SiMe ) are reported. Of these, the co-crystal 2⋅0.48 I exhibits the largest spacing of 16.7 Å reported to date for distannoxane-based double ladders. DFT calculations for the hexanuclear cage and a related octanuclear congener accompany the experimental work.
二核和三核有机锡卤化物的水解反应生成了含有Sn-O-Sn桥的新型大笼状化合物。报道了两种具有双梯状结构的八核四有机二锡氧烷的分子结构，即[{MeSiCH(Cl)SnCHYCHSn(OH)CHSiMe}(μ-O)] [1, Y = p-(Me)SiC6H4-C6H4Si(Me)4]和[{MeSiCH(I)SnCHYCHSn(OH)CHSiMe}(μ-O)]·0.48I [2·0.48I, Y = p-(Me)SiC6H4-C6H4Si(Me)4]，以及六核笼状化合物1,3,6-C6H3(p-C6H4Si(Me)2CH2Sn(R)OSn(R)CH2Si(Me)2C6H4-p)C6H3-1,3,6 (3, R = CH2SiMe3)。其中，共晶体2·0.48I展示出了迄今为止报道的基于二锡氧烷的双梯状结构的最大间距，为16.7 Å。对六核笼状化合物及相关八核同系物的密度泛函理论计算与实验工作相伴进行。
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