Synthesis and characterization of lanthanide(III) complexes of 4 ',5 '-dibromobenzo-15-crown-5

Authors
Dong, WK Yang, RD Ma, L
Citation
Wk. Dong et al., Synthesis and characterization of lanthanide(III) complexes of 4 ',5 '-dibromobenzo-15-crown-5, I J CHEM A, 37(8), 1998, pp. 733-735
Citations number
8
Categorie Soggetti
Chemistry
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
ISSN journal
03764710 → ACNP
Volume
37
Issue
8
Year of publication
1998
Pages
733 - 735
Database
ISI
SICI code
0376-4710(199808)37:8<733:SACOLC>2.0.ZU;2-F
Abstract
Six new solid complexes bf lanthanide(III) nitrates with 4, 5-dibromobenzo- 15-crown-5 (Br, B15C5), [Ln (NO3)(3)Br2B 15C5] (Ln=La-Nd) and [Ln(NO3)(3) (OH2)(2)] Br2B 15C5 CH3CN (Ln = Sm, Eu) have been synthesized and character ized by elemental analyses, IR and UV spectra, molar conductance measuremen ts, TG-DTA and XRD. Coordination number of the lanthanide(III) ion for La(I II), Ce(III), Pr(III) and Nd(III) complexes is found to be eleven. Sm(II) a nd Eu(III) ions are not directly bonded to the crown ether but are bonded b y hydrogen bonds.