Crystal engineering of Pd(II) compounds with 2-amino-5-mercapto-1,3,4-thiadiazolate or 6-amino-2-mercaptobenzothiazolate

Treatment of Pd(d-t-bpy)Cl2 (d-t-bpy=4,4′-di-tert-butyl-2,2′-bipyridine) with sodium 2-amino-5-mercapto-1,3,4-thiadiazolate (NaSSNH2) or sodium 6-amino-2-mercaptobenzothiazolate (NaSSCNH2) affords two interesting hydrogen-bonded polymers: [Pd(d-t-bpy)(SSNH2)2] (1) and [Pd2(SSCNH2)4] (2). 1 forms a pseudo 3-D zeolite-like framework. Surprisingly, the lantern-typed 2 · 4DMF has been serendipitously isolated in the same reaction condition, and it displays a rare 2-D hydrogen-bonded network composed of a dimetal unit propagated in the crystal lattice.