Electrospray ionization tandem mass spectrometry in high-throughput screening of homogeneous catalysts |
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Authors: | Chen Peter |
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Affiliation: | Laboratorium für Organische Chemie, ETH Zürich, 8093 Zürich, Switzerland. chen@org.chem.ethz.ch |
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Abstract: | The frontispiece shows an illustration by John Tenniel and an excerpt from the 1865 edition of Lewis Carroll's "Alice in Wonderland". Because everything in Wonderland runs counter to logic, the Queen of Hearts declares in Alice's trial "Sentence first-verdict afterwards". High-throughput screening of catalysts, as it is conventionally practiced, does "Synthesis first-screening afterwards" which, as is argued in this review, also backwards. Given the particular constraints present in organometallic complexes, it is more efficient to develop a selective synthesis only when it has already been determined that a structure is likely to be better. The consequence is that screening methods must be able to handle ill-defined mixtures. Electrospray ionization tandem mass spectrometry is presented as a technical solution to this problem. |
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Keywords: | combinatorial chemistry high‐throughput screening homogeneous catalysis mass spectrometry organometallic chemistry |
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