Authors: 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
Title: Molecular cage assembly by Sn-O-Sn bridging of di-, tri- and tetranuclear organotin tectons: extending the spacing in double ladder structures
Language (ISO): en
Abstract: 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., [{Me3SiCH2(Cl)SnCH2YCH2Sn(OH)CH2SiMe3}2(μ-O)2]2 [1, Y=p-(Me)2SiC6H4-C6H4Si(Me)2] and [{Me3SiCH2(I)SnCH2YCH2Sn(OH)CH2SiMe3}2(μ-O)2]2⋅0.48 I2 [2⋅0.48 I2, Y=p-(Me)2SiC6H4-C6H4Si(Me)2], and the hexanuclear cage-compound 1,3,6-C6H3(p-C6H4Si(Me)2CH2Sn(R)2OSn(R)2CH2Si(Me)2C6H4-p)3C6H3-1,3,6 (3, R=CH2SiMe3) are reported. Of these, the co-crystal 2⋅0.48 I2 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.
Subject Headings: DFT calculations
DOSY NMR spectroscopy
X-ray diffraction
Issue Date: 2021-06-02
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Appears in Collections:Lehrstühle für Anorganische Chemie

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