Structural Manipulation of Hydrogen Bond Networks Using Sulfonated Phosphane Ligands and Their Complexes: Competition and Interplay Between Strong and Weak Hydrogen Bonds

摘要: Using the sulfonated phosphane [PPh2(C6H4-m-SO3)](-), L-, we have demonstrated that metal centres can readily be incorporated into guanidinium sulfonate (GS) hydrogen-bonded networks, and increase in steric bulk on going from [C(NH2)(3)][L] (1) to [C(NH2)(3)][AuCl(L)] (2) leads a flattening of GS sheets. The crystal structures [C(NH2)(3)][LS] 3 [C(NH2)(3)][LSe] 4 (LS- = [SPPh2(C6H4-m-SO3)](-), LSe- [SePPh2(C6H4-m-SO3)](-)) reveal disorder both groups cations, which is consequence pseudo-sixfold phenyl embraces between anions. These interactions, identical those observed Ph3PS Ph3PSe, position too close together for regular quasihexagonal hydrogen bonding motifs formed. patterns also disrupted by using an anion containing two such as [C(NH2)(3)](2){Cis-[PdCl2(L)(2)]) (5). In this case incorporation each same sheet serves constrain distance sulfur atoms value incommensurate with enabling cation bond groups. irregular sheets are formed involving fewer N-(HO)-O-... bonds than 1 2. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003).