title: Complexation of trivalent lanthanide cations by D-ribose in the solid state. The crystal structure and FT-IR study of PrCl3-alpha-D-ribopyranose-5H2O.
abstract: The crystal structure of praseodymium chloride.alpha-D-ribopyranose pentahydrate, PrCl3-C5H10O5-5 H2O, M(r)=487.47, a=9.1989(8), b=8.8214(7), c=9.8233(9) A, beta=94.060(3) degrees, V=795.2(1) A(3), Z=2, mu=0.71073 A and R=0.0418 for 1923 observed reflections and 172 parameters has been determined. The sugar provides three hydroxyl groups, ax-eq-ax for coordination. The Pr(3+) ion is nine-coordinated with five Pr-O bonds from water molecules, three from hydroxyl groups and one from chloride. The OH, CO stretching vibrations and COH bending vibrations are shifted in the complex IR spectrum and the hydroxyl groups, water molecules, chloride ions form an extensive hydrogen-bond network.
authors.affiliation: The State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University-The University of Hong Kong Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, Peking University, 100871, Beijing, China.
authors.forename: L
authors.initials: L
authors.lastname: Yang
authors.forename: Y
authors.initials: Y
authors.lastname: Zhao
authors.forename: Y
authors.initials: Y
authors.lastname: Xu
authors.forename: X
authors.initials: X
authors.lastname: Jin
authors.forename: S
authors.initials: S
authors.lastname: Weng
authors.forename: W
authors.initials: W
authors.lastname: Tian
authors.forename: J
authors.initials: J
authors.lastname: Wu
authors.forename: G
authors.initials: G
authors.lastname: Xu
mesh_terms: D003460:Crystallization; D028581:Lanthanoid Series Elements / Q000737:chemistry; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D011221:Praseodymium / Q000737:chemistry*; D012266:Ribose / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D028581:Lanthanoid Series Elements; D009942:Organometallic Compounds; D012266:Ribose; D011221:Praseodymium