Single- and double-stranded chains assembled via concomitant metal coordination and hydrogen bonding

The synthesis and X-ray crystal structures of two novel cationic metal complexes bearing ligands capable of multiple hydrogen-bonding interactions (isonicotinamide) are reported. cis-(Et3P)(2)Pt(NC5H4CONH2)(2)(NO3)(2) (2) crystallizes as its monohydrate via the amide functionality, resulting in infinite, parallel zigzag chains. (C5Me5)Rh(NC5H4CONH2)(3)(OTf)(2) (3), along with one molecule of acetone, crystallizes via the amide functionality, resulting in infinite, doubly stranded, interwoven chains. The preparation and X-ray crystal structure of cis-(Et3P)(2)Pt(NO3)(2) (1) is also reported.