The preparation and characterization of cationic, dinuclear complexes of the type trans-[Pt(PPh3)2(σ-C6H4NHMe)-µ-L-Pt(PPh3)2(σ-C6H4NHMe)](OTf)2(L = 4,4′-bipyridine, 4,7-phenanthroline, 4,4′-dipyrazolylmethane, and 1,1′-diphenyl-4,4′-dipyrazolylmethane; OTf = trifluoromethanesulfonate (triflate)) containing two C3-N-methylbenzamide ligands are described. The key structural feature of the cationic complexes is the presence of two convergent amide groups that may allow for charge-assisted, H-bonding interactions in solution with suitable heteroaromatic guest molecules such as nucleobases.Key words: organoplatinum(II) complex, organometallic host, dinuclear complex, N-methylbenzamide.
反式-[Pt(PPh3)2(σ-C6H4NHMe)-µ-L-Pt(PPh3)2(σ-C6H4NHMe)](OTf)2(L = 4、4′-联
吡啶、4,7-
菲罗啉、4,4′-二
吡唑甲烷和 1,1′
-二苯基-4,4′-二
吡唑甲烷;OTf =
三氟甲磺酸盐(三
氟酸盐))含有两个 C3-N 甲基苯甲酰胺
配体。阳离子配合物的主要结构特征是存在两个会聚的酰胺基团,可在溶液中与合适的杂芳香族客体分子(如核碱基)发生电荷辅助的 H 键相互作用。