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Abstract:

The first lanthanide citrate coordination polymer with the formula [La(Hcit)(H2O)]n (Hcit3- = C(OH)(COO -)(CH2COO-)2) was prepared from La2O3 and citric acid at pH = 2.2-2.5 under hydrothermal conditions at 120 °C. The compound was characterized by elemental analysis, IR, TG-DTA, and X-ray crystallography. It is thermally stable up to 158 °C and insoluble in common solvents. The compound crystallizes in the monoclinic space group C2/c with a = 16.765(3) Å, b = 8.822(2) Å, c = 14.048(3) Å, β = 120.64(3)°, and Z = 8. The structure consists of chains of La(III) cations bridged by O-C-O groups with pendant Hcit anions forming a pillar structure. The Hcit ligand is involved in six La-O bonds to five different La centers in a very compact 3D structure.

Registro:

Documento: Artículo
Título:Isolation and characterization of a polymeric lanthanum citrate
Autor:Baggio, R.; Perec, M.
Filiación:Departamento de Física, Comision Nacional de Energia Atomica, Avda del Libertador 8250, 1429 Buenos Aires, Argentina
Departamento de Quimica Inorganica, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428, Buenos Aires, Argentina
Palabras clave:coordination compound; lanthanum; lanthanum citrate; unclassified drug; article; chemical analysis; crystallization; infrared spectroscopy; thermogravimetry; thermostability; X ray crystallography
Año:2004
Volumen:43
Número:22
Página de inicio:6965
Página de fin:6968
DOI: http://dx.doi.org/10.1021/ic049165p
Título revista:Inorganic Chemistry
Título revista abreviado:Inorg. Chem.
ISSN:00201669
CODEN:INOCA
CAS:lanthanum, 16096-89-2, 7439-91-0
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201669_v43_n22_p6965_Baggio

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  • note

Citas:

---------- APA ----------
Baggio, R. & Perec, M. (2004) . Isolation and characterization of a polymeric lanthanum citrate. Inorganic Chemistry, 43(22), 6965-6968.
http://dx.doi.org/10.1021/ic049165p
---------- CHICAGO ----------
Baggio, R., Perec, M. "Isolation and characterization of a polymeric lanthanum citrate" . Inorganic Chemistry 43, no. 22 (2004) : 6965-6968.
http://dx.doi.org/10.1021/ic049165p
---------- MLA ----------
Baggio, R., Perec, M. "Isolation and characterization of a polymeric lanthanum citrate" . Inorganic Chemistry, vol. 43, no. 22, 2004, pp. 6965-6968.
http://dx.doi.org/10.1021/ic049165p
---------- VANCOUVER ----------
Baggio, R., Perec, M. Isolation and characterization of a polymeric lanthanum citrate. Inorg. Chem. 2004;43(22):6965-6968.
http://dx.doi.org/10.1021/ic049165p