title: Maleate-fumarate conversion and other novel aspects of the reaction of a Co(II) maleate with pyridine and bipyridine.
abstract: Reaction of a molecular Co(II) maleate, [Co(Hmal)2(H2O)4], with pyridine yields a Co(II) fumarate, [Co(fum)(H2O)4], with a chain structure and a chiral pyridylsuccinic acid zwitter ion, (-)OOC-CH(N+C5H5)-CH2-COOH, in almost quantitative yields, while the reaction of 4,4'-bipyridine (bipy) with the Co(II) maleate, on the other hand, almost quantitatively generates a polylmeric Co(II) maleate, [Co(mal)(bipy)]n.(n/2)H2O along with the adduct of fumaric acid with bipyridine.
authors.affiliation: School of Chemical Sciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686 560, Kerala, India.
authors.forename: M
authors.initials: M
authors.lastname: Padmanabhan
authors.forename: James C
authors.initials: JC
authors.lastname: Joseph
authors.forename: A
authors.initials: A
authors.lastname: Thirumurugan
authors.forename: C N R
authors.initials: CN
authors.lastname: Rao
mesh_terms: D003035:Cobalt / Q000737:chemistry*; D005650:Fumarates / Q000737:chemistry*; D008298:Maleates / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D011725:Pyridines / Q000737:chemistry*
chemical_list: D005650:Fumarates; D008298:Maleates; D009942:Organometallic Compounds; D011725:Pyridines; D003035:Cobalt