Recognition of giant cluster anions by a protonated porphyrin trimer: Detection by fast-atom bombardment (FAB) mass spectrometry

Anderson HL, Sanders JKM

Anions such as PW12O403-, SiW 12O404- and OS10C(CO) 242- are recognised and bound by a porphyrin cyclic trimer of complementary size and charge; these second-sphere coordinate cluster complexes were detected by FAB mass spectrometry.