Katalytische Spaltung von Racematen durch Rechts- und Linksquarz

Schwab, Georg‐Maria; Rudolph, L.

doi:10.1007/bf01504931

Cited by 66 publications

(15 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, b-quartz was used to induce mirror-symmetry breaking in chemistry and adsorption. In 1932, Schwab and Rudolph [174] reported enantioselective dehydrogenation oxidation of the racemic butane-2-ol over quartz powder, modified with catalytically active metals. However, due to the minute effects the enantioselective adsorption of chiral molecules on quartz has not been widely accepted until 1974 [175].…”

Section: Diastereomers and Diastereomeric Recognitionmentioning

confidence: 99%

Molecular chirality at surfaces

Ernst

2012

Physica Status Solidi (b)

223

264

View full text Add to dashboard Cite

With the adsorption of larger molecules being increasingly tackled by surface scientists, the aspect of chirality often plays a role. This paper gives a topical review of molecular chirality at surfaces and gives a phenomenological overview of different aspects of adsorption and self‐assembly of chiral and prochiral molecules and the principles of mirror‐symmetry breaking at a surface. After a brief introduction into the history of molecular chirality and the important role it played for understanding the spatial structure of molecules, definitions of chirality are presented. Topics treated here are principle ways to create single chiral adsorbates, chiral ensembles, and monolayers by achiral molecules, adsorption of intrinsically chiral molecules at achiral and chiral surfaces, long‐range symmetry breaking in two‐dimensional (2D) crystals due to additional chiral bias, chiral restructuring of solid surfaces under the influence of chiral molecules, switching the handedness of adsorbates, and chirality at the liquid/air interface. An outlook onto further potential research directions and recommendations for further reading, including nonsurface‐related sources of chiral topics completes this paper.

show abstract

Section: Diastereomers and Diastereomeric Recognitionmentioning

confidence: 99%

Molecular chirality at surfaces

Ernst

2012

Physica Status Solidi (b)

223

264

View full text Add to dashboard Cite

show abstract

“…One can, therefore, expect enantiomeric differences in the adsorption and reaction behaviour of chiral molecules. The first reports by Schwab and Rudolph [7] about enantioselective reactions catalysed by enantiopure a-quartz particles date back to the 1930s. A number of enantioselective effects have been reported since in connection with the adsorption of small chiral molecules (e.g.…”

Section: Introductionmentioning

confidence: 98%

The Chemistry of Intrinsically Chiral Surfaces

Held

Gladys

2008

Top Catal

View full text Add to dashboard Cite

Intrinsically chiral metal and mineral surfaces show enantioselective behaviour without modifiers. Examples are artificial high-Miller-index surfaces of metal single crystals with cubic bulk lattice symmetry, which have no mirror planes and are therefore chiral, or surfaces of naturally occurring crystallites of some common minerals, such as a-quartz or calcite. Recent findings with regards to the surface geometry, reactivity and thermal stability of intrinsically chiral surfaces are discussed. A number of enantioselective effects have been reported in connection with the adsorption of small chiral molecules (e.g. alanine, cysteine) on intrinsically chiral surfaces under well-defined conditions. From a combination of experimental surface science techniques and theoretical ab initio model calculations it emerges that these effects are due to a combination of attractive and repulsive adsorbate-substrate and inter-adsorbate interactions.

show abstract

“…An early approach toward chiral heterogeneous catalysts was the deposition of the catalytically active metal or metal oxide particles onto intrinsically chiral supports such as quartz [24], cellulose [25], or synthetic chiral polymers [26][27][28]. Hydrogenation and dehydration reactions were tested, but enantioselective performance was found to be poor.…”

Section: Metal or Metal Oxide On A Chiral Supportmentioning

confidence: 99%

Enantioselective Heterogeneous Catalysis

Baddeley

2013

Heterogeneous Catalysts for Clean Technology

View full text Add to dashboard Cite

Katalytische Spaltung von Racematen durch Rechts- und Linksquarz

Cited by 66 publications

References 4 publications

Molecular chirality at surfaces

Molecular chirality at surfaces

The Chemistry of Intrinsically Chiral Surfaces

Enantioselective Heterogeneous Catalysis

Contact Info

Product

Resources

About