Crystal structure and infrared spectra of a lanthanum coordination compound with glycine, [La(Gly)s{center_dot}2H{sub 2}O]{center_dot}(ClO{sub 4}){sub 3}{sub n}
- Changchun Institute of Applied Chemistry, Jilin (China)
A lanthanum coordination compound with glycine [La(Gly){sub 3}{center_dot}2H{sub 2}O]{center_dot}(ClO{sub 4}){sub 3}{sub n} (Gly = NH{sup +}{sub 3}-CH{sub 2}-COO{sup -}) was synthesized and obtained in the form of single crystals. Its X-ray crystal structure has been determined and the IR spectrum has been studied. Crystallographic data for the compound are Mr = 698.6, triclinic, space group Pi, with a = 10.730(4), b = 12.958(4), c = 8.806(3) {angstrom}, a = 97, 10(2), {beta} = 113.05(3), {gamma} = 71.52(3), V = 1068.55 (0.67) {angstrom}{sup s}, Z = 2; D{sub calc} = 2.17 cm{sup -3}, {mu} = 25.1 cm{sup -1}; T = 298K; {lambda}(MoKa) = 0.71069 {angstrom}, 2 {theta}{sub max} = 60.0{degrees}. Final R = 0.055 for 5554 observed reflections with I>3{sigma} (I). Glycine molecules coordinate with lanthanum atoms through alternate {open_quotes}two-four glycine molecules coordinate to lanthanum atoms as bridging bidentates ligands and the others as bridging-chelating terdenate ligands. The IR spectrum of the compound is compared with that of ([Sm{sub 2}(Gly){sub 6}{center_dot}4H{sub 2}O]{center_dot}(ClO{sub 4}){sub 6}{center_dot}5H{sub 2}O){sub n}. Differences in their IR spectra indicate differences of structures. 18 refs., 4 figs., 4 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 198147
- Journal Information:
- Journal of Coordination Chemistry, Vol. 33, Issue 1; Other Information: PBD: 1994
- Country of Publication:
- United States
- Language:
- English
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