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. Author manuscript; available in PMC: 2012 Sep 5.
Published in final edited form as: Inorg Chem. 2011 Aug 5;50(17):7966–7979. doi: 10.1021/ic2012843

Figure 1.

Figure 1

Schematic representations of the conformation of cyclen in DOTA-type chelates. Left: A Dale’s representation of the [3333] ring conformation of cyclen in the δδδδ conformation highlighting the differences between carbons located at a corner position versus those located at a side position. Right: Highlighting a Newman projection of the ethylene bridges, again in a δδδδ conformation, demonstrating that equatorial positions on both carbons located at the corner and at the side are pro-S-.