Additions and corrections

Triethylenetetramine penta- and hexa-acetamide ligands and their ytterbium complexes as paraCEST contrast agents for MRI

Dirk Burdinski, Johan Lub, Jeroen A. Pikkemaat, Diana Moreno Jalón, Sophie Martial and Carolina Del Pozo Ochoa

Dalton Trans., 2008, 4138 (DOI: 10.1039/b803557a). Amendment published 21st August 2008.

An incorrect earlier version of Fig. 4b had erroneously been submitted with the manuscript. In the correct Fig. 4b the red and blue curves remain unaltered and the corrected black curve shows lower intensities compared to the published data. This correction of Fig. 4b does not impact the discussion and conclusions of the published work, since only the peak positions are relevant in this context. The peak positions have been published and discussed correctly.

The published version of Fig. 4b should be amended as shown below:

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.