Click on a link to retrieve supplementary data submitted for this article:

• Crystal structure data
• (CIF format, 44 KB)

• Generalized procedures and spectral data for compounds 9–14
• (CIF format, 387 KB)

• Rotatable 3-D crystal structure diagram of compound 55
• (CHIME format, 5 KB)

• Rotatable 3-D crystal structure diagram of compound 66
• (CHIME format, 15 KB)

Crystal structures in this article have been enhanced as 3D rotatable figures, viewable using the free web browser plug-in Chime. For authors wishing to enhance their own papers in this way, a tutorial giving details on how to make such figures from CIF files is available from the RSC's Acceptable formats page.