Synthesis and crystal structure of two praseodymium 2-iodobenzoic acid complexes
Two new complexes, {[Pr(2-IBA)3 · 2,2'-bipy]2·[Pr(2-IBA)3 · 2,2'-bipy]2 · 0.5C2H5OH · H2O} (1) and [Pr(2-IBA)3 · phen]2 (2) (2-IBA = 2-iodobenzoate; 2,2'-bipy = 2,2'-bipyridine; phen = 1,10-phenanthroline) were synthesized, and their crystal structures were determined by X-ray diffraction. Complex 1 consists of two binuclear molecules [Pr(2-IBA)3 · 2,2'-bipy]2 (a) and [Pr(2-IBA)3 · 2,2'-bipy]2 (b), half uncoordinated ethanol and one uncoordinated water. In the two molecules (a) and (b), the coordination environment of central ions is similar. The Pr13+ ion in molecule (a) and Pr23+ ion in molecule (b) are nine-coordinate with seven oxygen atoms from five 2-IBA ligands and two nitrogen atoms from one 2,2'-bipy molecule. The crystal structure of complex 2 is similar to that of binuclear [Pr(2-IBA)3 · 2,2'-bipy]2 in complex 1.
Keywords: 2-Iodobenzoic acid; Crystal structure; Praseodymium complexes
Document Type: Research Article
Affiliations: Department of Chemistry, Capital Normal University, Beijing 100037, People's Republic of China
Publication date: 01 July 2007
- Access Key
- Free content
- Partial Free content
- New content
- Open access content
- Partial Open access content
- Subscribed content
- Partial Subscribed content
- Free trial content