Mono‐ and Di‐Potassium Derivatives of Benzenepentacarboxylic Acid

Abstract

AbstractThe synthesis and structure of the hydrated mono‐ and di‐potassium salts of benzenepentacarboxylic acid are reported – [K(H4BPC)(H2O)2]·(H2O) 1 and [K2(H3BPC)(H2O)3]·(H2O) 2 (BPC = benzenepentacarboxylate). In both instances the structures are complex coordination networks, predominantly containing η1 binding modes of the carboxylate and carboxylic acid groups, although bridging (O,O) and (O,O′) carboxylates and μ2‐H2O ligands also feature. Extensive hydrogen bonding is present through the carboxylic acid groups and both coordinated and interstitial water molecules.