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Abstract:

The synthesis and characterisation by solid-state 111Cd NMR of Cd(2,3-), Cd(2,4-), Cd(2,5-) and Cd(2,6-pyridinedicarboxylato) • xH 2O is reported. Results indicate that the 111Cd NMR signal is very sensitive to the relative position of both carboxylates. Similar shifts (at 54.0 and 55.4 ppm) are found for the 2,4- and the 2,6-isomers where the carboxylates groups are meta to each other. For the 2,3- and 2, 5-derivatives (carboxylates in ortho and para positions), the signals are detected at 119.6 and 84.2 ppm. The crystal and molecular structure of the seven-coordinated cadmium complex, [Cd(2,4-pyridinedicarboxylato)(H 2O)3] • 1/2H2O is also reported. This data allows a correlation between Cd-O and Cd-N coordination and geometry with 111Cd chemical shifts. Additional coupling between 111Cd and 14N in 2,3- (also found in 2,4-pydc) suggests only one N is coordinated to Cd. The anisotropy magnitude, Δσ, and the asymmetry parameter, η, are also analysed. © 2005 Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Solid-state 111Cd NMR studies on cadmium(II)-2,x-pyridinedicarboxylates. Crystal structure of 2,4-pyridinedicarboxylato triaqua cadmium(II) hemihydrate: [Cd(II)(2,4-pydc)(H2O)3] • 1/2H2O
Autor:Mendoza-Díaz, G.; Rigotti, G.; Piro, O.E.; Sileo, E.E.
Filiación:Universidad De Guanajuato, Facultad De Química, Noria Alta s/n, Guanajuato, Gto. 36050, Mexico
Departamento De Física, Facultad De Ciencias Exactas, Univ. Nac. De La Plata Inst. De F., C. C. 67, 1900 La Plata, Argentina
Depto. De Quím. Inorg., Analitica Y Quim. Fis., Fac. De Cie. Exact. Y Nat., Univ. D., C1428EHA, Buenos Aires, Argentina
Palabras clave:Crystal structure; Lutidinate; Pyridinedicarboxylate; Solid-state 111Cd NMR
Año:2005
Volumen:24
Número:7
Página de inicio:777
Página de fin:783
DOI: http://dx.doi.org/10.1016/j.poly.2005.02.007
Título revista:Polyhedron
Título revista abreviado:Polyhedron
ISSN:02775387
CODEN:PLYHD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02775387_v24_n7_p777_MendozaDiaz

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Citas:

---------- APA ----------
Mendoza-Díaz, G., Rigotti, G., Piro, O.E. & Sileo, E.E. (2005) . Solid-state 111Cd NMR studies on cadmium(II)-2,x-pyridinedicarboxylates. Crystal structure of 2,4-pyridinedicarboxylato triaqua cadmium(II) hemihydrate: [Cd(II)(2,4-pydc)(H2O)3] • 1/2H2O. Polyhedron, 24(7), 777-783.
http://dx.doi.org/10.1016/j.poly.2005.02.007
---------- CHICAGO ----------
Mendoza-Díaz, G., Rigotti, G., Piro, O.E., Sileo, E.E. "Solid-state 111Cd NMR studies on cadmium(II)-2,x-pyridinedicarboxylates. Crystal structure of 2,4-pyridinedicarboxylato triaqua cadmium(II) hemihydrate: [Cd(II)(2,4-pydc)(H2O)3] • 1/2H2O" . Polyhedron 24, no. 7 (2005) : 777-783.
http://dx.doi.org/10.1016/j.poly.2005.02.007
---------- MLA ----------
Mendoza-Díaz, G., Rigotti, G., Piro, O.E., Sileo, E.E. "Solid-state 111Cd NMR studies on cadmium(II)-2,x-pyridinedicarboxylates. Crystal structure of 2,4-pyridinedicarboxylato triaqua cadmium(II) hemihydrate: [Cd(II)(2,4-pydc)(H2O)3] • 1/2H2O" . Polyhedron, vol. 24, no. 7, 2005, pp. 777-783.
http://dx.doi.org/10.1016/j.poly.2005.02.007
---------- VANCOUVER ----------
Mendoza-Díaz, G., Rigotti, G., Piro, O.E., Sileo, E.E. Solid-state 111Cd NMR studies on cadmium(II)-2,x-pyridinedicarboxylates. Crystal structure of 2,4-pyridinedicarboxylato triaqua cadmium(II) hemihydrate: [Cd(II)(2,4-pydc)(H2O)3] • 1/2H2O. Polyhedron. 2005;24(7):777-783.
http://dx.doi.org/10.1016/j.poly.2005.02.007