Introduction by Prof. Rick Danheiser (Volume Editor):

This volume covers the synthesis and applications of ketenes and ketenimines, as well as sulfur, selenium, and tellurium analogues of ketenes. The nature of the substituents attached at the C2 carbon of ketenes has a dramatic effect on the chemistry of these compounds, and consequently this volume is divided into 17 product classes based on the type of substituent at this position. 

The links below provide further information about Volume 23:

• Detailed table of contents (pdf).
• List of authors.