Synthesis and structure of new anionic five-coordinate silicon complexes derived from α-hydroxy acids and 1-methylpiperazine-2,5-dione View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2019-08-16

AUTHORS

A. A. Nikolin, A. A. Korlyukov, E. P. Kramarova, D. E. Arkhipov, A. G. Shipov, Yu. I. Baukov, Vad. V. Negrebetskii

ABSTRACT

Anionic five-coordinate complexes with two bis-O,O’-chelating ligands bearing α-hydroxy acid moieties, dicyclohexylammonium salts Cy2NH2+{PpnCH2Si[OCR2C(O)O]2}−\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\text{Cy}_{2}\text{NH}_{2}{^+}\{\text{PpnCH}_2\text{Si}[\text{OCR}_2\text{C}\text{(O)O]}_2\}^-$$\end{document} (Cy is cyclohexyl, PpnCH2 is 4-methyl-2,5-dioxopiperazin-1-ylmethyl, R = Me, Ph), were synthesized by esterification of alkoxysilane PpnCH2Si(OMe)3 with α-hydroxy acids (dimethyl- and diphenylgylcolic acids) in the presence of dicyclohexylamine. The five-coordinated state of the silicon atom in the resulting compounds in solution was confirmed by 29Si NMR spectroscopy. According to the X-ray diffraction data, the synthesized compounds contain the SiCO4 coordination unit. More... »

PAGES

1575-1579

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11172-019-2595-z

DOI

http://dx.doi.org/10.1007/s11172-019-2595-z

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1120338405


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