Factors Involved in the Nuclearity of Silver Thiosemicarbazone Clusters: Cocrystallization of Two Different Sized Tetranuclear Silver(l) Clusters Derived from a Phosphinothiosemicarbazone Ligand.

The reaction of silver acetate with a phosphinothiosemicarbazone ligand, HLPPh, yielded the tetranuclear silver compound [Ag4(LPPh)4] · 2MeOH (1), which after recrystallization results in the cocrystallization of two different silver clusters, [Ag4(LPPh)4]a- [Ag4(LPPh)4]b · 8MeOH (2). The factors involved in the assembly of tetranuclear compounds derived from thiosemicarbazone ligands and the structural differences between the two clusters are analyzed herein. Additionally, HLPPh and complex 1 exhibit photoluminescence in solution at room temperature. [ABSTRACT FROM AUTHOR]