4,4,5,5-Tetra-methyl-1,3,2λ-dioxa-phospho-lan-2-one.
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The five-membered ring in the title compound, C6H13O3P, exists in an envelope conformation with one of the ring C atoms at the flap position, forming a three-dimensional network.Abstract:
The five-membered ring in the title compound, C6H13O3P, exists in an envelope conformation with one of the ring C atoms at the flap position. The coordination geometry around the P atom is a distorted tetrahedron. The crystal structure is stabilized by several weak C—H⋯O and P—H⋯O hydrogen bonds, forming a three-dimensional network.read more
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2,6-Dimethylphenol derived H-phosphonate and α-hydroxyphosphonate: facile synthesis, crystal chemistry, supramolecular association and metal complexation
TL;DR: In this article, the structure of α-hydroxyarylphosphonate has been determined by single crystal X-ray diffraction studies and the four crystalline forms exhibit either two-dimensional sheet-like polymeric structures or tubular structures with water channels.
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Key chromophores in celluloses: analysis by 31P NMR spectroscopy
TL;DR: In this paper , the derivatization of key cellulosic key chromophores, 2,5-dihydroxy-[1,4]-benzoquinone, 5,8-dhydroxy]-1, 4]-naphthoquinone and 2.5-Dihydrox-acetophenone, was explored by a phosphitylation agent followed by 31 P NMR analysis, an approach that is very frequently used for quantitative OH group analysis and differentiation in lignins and lignin derivatives.
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Gallic acid derivatives as stabilizers in cellulose solutions: analysis by 31P NMR spectroscopy
TL;DR: In this paper , the analysis of the stabilizer and its major degradation products, ellagic acid and ellagoquinone, is investigated, and the derivatization of the OH groups with a phosphitylation agent and subsequent 31 P NMR analysis is performed.
References
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A short history of SHELX
TL;DR: This paper could serve as a general literature citation when one or more of the open-source SH ELX programs (and the Bruker AXS version SHELXTL) are employed in the course of a crystal-structure determination.
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ORTEP-3 for Windows - a version of ORTEP-III with a Graphical User Interface (GUI)
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The weak hydrogen bond : in structural chemistry and biology
TL;DR: In this paper, the weak hydrogen bond in supramolecular chemistry and biological structures is discussed. But weak and non-conventional hydrogen bonds are not considered in this paper.
Journal ArticleDOI
The heck reaction as a sharpening stone of palladium catalysis.
TL;DR: s, or keywords if they used Heck-type chemistry in their syntheses, because it became one of basic tools of organic preparations, a natural way to make organic preparations.