三苯基锡 (iv) 戊二酸盐:合成、FT-IR 和摩斯鲍尔研究

Mouhamadou Sembéne Boye, M. Diop, M. Sarr, Aminata Diasse-Sarr, L. Diop,, Alain Wattiaux
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引用次数: 0

摘要

四种新的加合物:[(Me4N)2O2C(CH2)3CO2×4SnPh3Cl] (1)、[(Me4N)2O2C(CH2)3CO2×3SnPh3Cl] (2)和[(Cy2NH2)2O2C(CH2)3CO2×SnPh3Cl]、(SnPh3)2O2C(CH2)3CO2×SnPh3Cl] (2′) 和 [(Cy2NH2)2O2C(CH2)3CO2×SnPh3Cl] (3) 都是从溶液中进行的反应中分离出来的。除了 2'的结构是根据傅立叶变换红外光谱数据提出的以外,其他化合物都通过傅立叶变换红外光谱和莫斯鲍尔光谱进行了表征。总的来说,光谱研究显示存在几个特征带,如 υ (C=O)、υ (CO2-)、υ (Sn-O)、υ (Sn-Cl)、戊二酸根离子的振动,以及显示存在苯基的强双顶。在固态下,建议的结构是离散的或无限链的。在这项工作中,通过莫斯鲍尔参数确定了 Sn 中心的几何形状,即三叉双锥还是四面体。戊二酸根离子对锡原子的配位行为有单齿、三齿或四齿之分。
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TRIPHENYLTIN (IV) GLUTARATES: SYNTHESIS, FT-IR AND MÖSSBAUER STUDIES
Four new adducts catena-O,O′-glutaratotriphenylstannate, [(Me4N)2O2C(CH2)3CO2×4SnPh3Cl] (1), [(Me4N)2O2C(CH2)3CO2×3SnPh3Cl] (2), [(SnPh3)2O2C(CH2)3CO2×SnPh3Cl] (2′) and [(Cy2NH2)2O2C(CH2)3CO2×SnPh3Cl] (3), have been isolated from the reactions carried out in solution. The compounds have been characterized by FT-IR and Mössbauer spectroscopies except for 2’ whose structure is proposed on the basis of FT-IR data. Overall, the spectra studies sheew existence of several caracteristic bands such as υ (C=O), υ (CO2–), υ (Sn–O), υ (Sn–Cl), vibrations of glutarate ions, and the intense doublet showing the presence of phenyl groups. In the solid state, the suggested structures are discrete or of infinite chain. In this work, the geometry at Sn centers, trigonal bipyramidal or tetrahedral, is ascertained by the Mössbauer parameters. The glutarate ions exhibit a monodentate, tridentate or tetradentate coordination behavior towards the Sn atoms.  
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