The clustering reactions of Na+ and Pb+ with several important ligands

Enthalpy, entropy, and Gibb's free energy changes for the clustering reactions of Na+ and Pb+ with several important atmospheric molecules and organic solvents have been measured by using high pressure mass spectrometry (HPMS). The unusually strong bonding has been found in Na+ ion complexes where ligands have large high moments and polarizabilities as well as in Pb+ ion complexes. The enhancement of the bonding by ion-high moment, ion-induced dipole, and dispersion interactions may account for the strong bonding in some of Na+ ion complex systems, while the strong bonding in Pb+ ion complexes may result from the hybridization of 6s and 6p orbitals of Pb+ ion. (orig.)