A novel synthetic path to a luminescent, dimeric samarium complex induced by the hydrolysis of methyl pyridine-3-carboxylate
Titel:
A novel synthetic path to a luminescent, dimeric samarium complex induced by the hydrolysis of methyl pyridine-3-carboxylate
Auteur:
Song, Yishan Yan, Bing
Verschenen in:
Journal of coordination chemistry
Paginering:
Jaargang 58 (2005) nr. 10 pagina's 817-823
Jaar:
2005-07-10
Inhoud:
A novel path to lanthanide complexes of aromatic carboxylates controlled by the hydrolysis of the corresponding aromatic carboxylate ester has been discovered. A dimeric samarium complex of pyridine-3-carboxylate (NIC) has been obtained using methyl pyridine-3-carboxylate (MNIC) as the starting ligand. With the hydrolysis of MNIC to NIC in the presence of sodium hydroxide, samarium ions coordinate to HNIC to form [Sm(NIC)3(H2O)2]2. X-ray analysis reveals the dimeric structure formed through bridging oxygen atoms of carboxylate groups. The complex crystallizes in the monoclinic space group P21/c with a = 9.668(3), b = 11.807(3), c = 17.512(5) Å, β = 92.361(3)°, V = 1997.3(10) Å3, Dc = 1.838 Mg m-3, Z = 2, R1 = 0.0225. The complex exhibits strong luminescence.
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