Cycloacylium ions

Investigation of acyl cations has been extended to the study of cycloacylium ions 332-336,652 diacylium ions (dications) 337-339,569,653 and unsaturated acylium ions 340-342.654 Computational studies at various levels of theory have also been... 

C NMR spectroscopic and theoretical studies (DFT, ab initio, IGLO) of a series of cycloacylium ions were performed by Prakash et al.577 The study showed that the cycloalkyl groups have little effect on the shift of the carbocationic carbon. Furthermore, charge calculations showed that the delocalization into the cycloalkyl group is greater than in the protonated carboxylic acid (carboxonium ion), where two oxygen atoms participate in delocalization. 

Investigation of acyl cations has been extended to be study of cycloacylium ions176, diacylium ions (diacyl cations)177, and unsaturated acylium ions178. ... 

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See also in sourсe #XX -- [ ]

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