title: Modulating the hydration behaviour of calcium chloride by lactam complexation.
abstract: Complexation of calcium chloride with bis(lactam) ligand L1 allows the formation of both an unstable anhydrous complex, an aqua complex {[Ca2(μ-L1)2(H2O)9]Cl4]}n (1) and a related hydrate incorporating additional lattice water of crystallization {[Ca(μ-L1)(H2O)5]Cl2·H2O}n (2). Related mono(lactam) L2 does not form aqua complexes but the anhydrous complex {[CaCl2(μ-L2)2]}n (3), is highly deliquescent. An unusual ethanol solvate is also reported {[CaCl2(L2)(EtOH)]}n (4).
authors.affiliation: Department of Chemistry, Durham University, South Road, Durham DH1 3LE, UK. jon.steed@durham.ac.uk.
authors.forename: Andrea
authors.initials: A
authors.lastname: Perrin
authors.affiliation: Ashland Inc., 1005 Route 202/206, Bridgewater, NJ 08807, USA. omusa@ashland.com.
authors.forename: Osama M
authors.initials: OM
authors.lastname: Musa
authors.affiliation: Department of Chemistry, Durham University, South Road, Durham DH1 3LE, UK. jon.steed@durham.ac.uk.
authors.forename: Jonathan W
authors.initials: JW
authors.lastname: Steed
mesh_terms: D002122:Calcium Chloride / Q000737:chemistry*; D056831:Coordination Complexes / Q000737:chemistry; D018360:Crystallography, X-Ray; D007769:Lactams / Q000737:chemistry*; D015394:Molecular Structure; D013055:Spectrophotometry, Infrared; D014867:Water / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D007769:Lactams; D014867:Water; D002122:Calcium Chloride