Publication

RhCl3-Mediated Coupling Reactions of tert-Butyl Acetylene

Rosario Scopelliti, Kay Severin, Euro Solari, Gregor Kiefer, Barnali Dutta
2012
Journal Articles

Abstract

RhCl3 is shown to mediate unusual coupling reactions of tert-butyl acetylene. When RhCl3(H2O)n was heated with four equivalents of tert-butyl acetylene in methanol, the dinuclear complex [{Rh(μ-Cl)(CH2tBu)(tBuC=CHCOCH2tBu)}2] (2) was isolated. A larger excess of tert-butyl acetylene (12 equiv.) resulted in the formation of the dimer [{η5-C5H2tBu2(CH2tBu)}Rh(μ-Cl)3Rh(C24H42O2)] (3). Both complexes were analyzed by single-crystal X-ray diffraction.

Official source

https://infoscience.epfl.ch/entities/publication/83b2646c-7605-4b3e-8d71-475888f67d27

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Rosario Scopelliti, Kay Severin, Euro Solari, Gregor Kiefer, Barnali Dutta
2012
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/83b2646c-7605-4b3e-8d71-475888f67d27

About this result

Related concepts (11)

Powder diffraction

Powder diffraction is a scientific technique using X-ray, neutron, or electron diffraction on powder or microcrystalline samples for structural characterization of materials. An instrument dedicated to performing such powder measurements is called a powder diffractometer. Powder diffraction stands in contrast to single crystal diffraction techniques, which work best with a single, well-ordered crystal. Diffraction grating The most common type of powder diffraction is with x-rays, the focus of this article although some aspects of neutron powder diffraction are mentioned.

X-ray crystallography

X-ray crystallography is the experimental science determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to diffract into many specific directions. By measuring the angles and intensities of these diffracted beams, a crystallographer can produce a three-dimensional picture of the density of electrons within the crystal. From this electron density, the mean positions of the atoms in the crystal can be determined, as well as their chemical bonds, their crystallographic disorder, and various other information.

X-ray scattering techniques

X-ray scattering techniques are a family of non-destructive analytical techniques which reveal information about the crystal structure, chemical composition, and physical properties of materials and thin films. These techniques are based on observing the scattered intensity of an X-ray beam hitting a sample as a function of incident and scattered angle, polarization, and wavelength or energy.

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