The Effect of Stereochemistry on Sodium Ion Complexation in Nucleoside-Metallacarborane Conjugates

Scheme 1

Schematic structures of the conjugates: ({5-[3-cobalt bis(1,2-dicarbollide)-8-yl]-3-oxa-pentoxy}-2^′-O-deoxyguanosine)−, 1–3 and ({5-[3-cobalt bis(1,2-dicarbollide)-8-yl]-3-oxa-pentoxy}thymidine)^-, 4–6.