Figures & data
Figure 4. The section of the 1H NMR spectrum of 2c showing the four pseudo triplet of doublets with a splitting diagram showing how these signals are formed.
![Figure 4. The section of the 1H NMR spectrum of 2c showing the four pseudo triplet of doublets with a splitting diagram showing how these signals are formed.](/cms/asset/f3aea1f9-87b1-4253-972c-d2e40b339346/oach_a_1245900_f0004_oc.gif)
Figure 5. Crystal structures of 1 (Top), 2a (Middle left), 2b (Middle right), 2c (Bottom left) and 2d (Bottom right). Hydrogen atoms are omitted from all structures for clarity. Ellipsoids are plotted at the 50% probability level.
![Figure 5. Crystal structures of 1 (Top), 2a (Middle left), 2b (Middle right), 2c (Bottom left) and 2d (Bottom right). Hydrogen atoms are omitted from all structures for clarity. Ellipsoids are plotted at the 50% probability level.](/cms/asset/9a3561bb-c6d3-4ed1-b7bf-32b5e52a2a71/oach_a_1245900_f0005_oc.gif)