Synthesis and Application of C-Phenylcalix[4]resorcinarene in
Adsorption of Cr(III) and Pb(II)
Budiana I Gusti M. Ngurah*1,
Jumina2, and Chairil Anwar2
1Department of
Chemistry, Faculty o...
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Synthesis and Application of C-Phenylcalix[4]resorcinarene in
Adsorption of Cr(III) and Pb(II)
Budiana I Gusti M. Ngurah*1,
Jumina2, and Chairil Anwar2
1Department of
Chemistry, Faculty o...
Read It
Here is another exploration of simple chemical concepts using crystal structures. Consider a simple diene: how does the central C-C bond length respond to the torsion angle between the two C=C bond...
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Previously, I explored deviation from ideal tetrahedral arrangements of four carbon ligands around a central (sp 3) carbon using crystal structures. Now it is the turn of digonal (sp 1) and trigona...
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The phenomenon of bond stretch isomerism, two isomers of a compound differing predominantly in just one bond length, is one of those chemical concepts that wax and occasionally wane. Here I explore...
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Derek Lowe has a recent post entitled " Another Funny-Looking Structure Comes Through". He cites a recent medchem article[1] in which the following acetal sub-structure appears in a promising drug ...
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This question was posted on the CCL (computational chemistry list) by John McKelvey. Here, I give an answer in the form of a search of the CSD (crystal structure database).
I was not sure if the qu...
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The original strategic objective of my PhD researches in 1972-74 was to explore how primary kinetic hydrogen isotope effects might be influenced by the underlying structures of the transition state...
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Earlier I explored models for the heteroaromatic electrophilic protiodecarboxylation of an 3-substituted indole, focusing on the role of water as the proton transfer and delivery agent. Next, came ...
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This is the third and final study deriving from my Ph.D.[1]. The first two topics dealt with the mechanism of heteroaromatic electrophilic attack using either a diazonium cation or a proton as elec...
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Another mechanistic study we started in 1972[1] is here 40+ years on subjected to quantum mechanical scrutiny.
The kinetics are again complex, the mechanism involving protonation‡ of the...
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The BBC TV quiz series Mastermind was first broadcast in the UK in 1972, the same time I was starting to investigate the mechanism of diazocoupling to substituted indoles as part of my Ph.D. resear...
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