One-dimensional helical Zn(II) and repeated rhomboidal Fe(II) coordination chains containing the twisted ligand 4,4′-di(4-pyridyl-4-pyrimidinyl)disulfide
✍ Scribed by Hai-Bin Zhu; Hai Wang; Fan Kong; Shao-Hua Gou; Yue-Ming Sun
- Book ID
- 103838557
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 807 KB
- Volume
- 936
- Category
- Article
- ISSN
- 0022-2860
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✦ Synopsis
Reactions of 4-PPDS (4-PPDS = 4,4 0 -di(4-pyridyl-4-pyrimidinyl)disulfide) with Zn(OAc) 2 and FeCl 2 produced a one-dimensional helical chain {[Zn(CH 3 CO 2 ) 2 (4-PPDS)]ÁH 2 CO 3 } n (1) and a one-dimensional repeated rhomboidal coordination chain [FeCl 2 (4-PPDS) 2 ] n (2), respectively. One-dimensional helical chain (1) is built from the alternating links of one Zn(II) ion and one 4-PPDS ligand with the same chirality whereas one-dimensional repeated rhomboidal chain (2) is constructed by alternated linking of one Fe(II) ion and two enantiomers of 4-PPDS ligands. Complex (1) has the unexpected carbonic acid in its crystal structure, which is assumed to be transformed from carbon dioxide. The solvent-accessible volume in complex ( 2) is approximate 151.4 Å 3 per unit cell volume. Both complexes in the solid state exhibit intense photoluminescences with the emission maxima around 365 nm upon excitation at 260 nm.