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EnglishThe synthesis and structural characterization of the mol. complexes [CoIII(h5-C5H4CONHC5H4N)2][PF6] (1), [CoIII(h5-C5H4CONHC5H4NH)(h5-C5H4COO)][PF6] (2), and of the supramol. adducts [CoIII(h5-C5H4CONHC5H4N)2][Fe(h5-C5H4COOH)2][PF6] (3) and [CoIII(h5-C5H4COO)2](-)[(C16H9CH2NH3)](+) (4) are reported together with an investigation of the hydrogen-bonding interactions in the solid state. Compd. [CoIII(h5-C5H4CONHC5H4NH)(h5-C5H4COO)](+) has been described as a cationic zwitterion in view of the charge sepn. arising from deprotonation of the carboxylic group and protonation of the pyridine moiety on the parent compd. [CoIII(h5-C5H4CONHC5H4N)(h5-C5H4COOH)](+). The complex forms a supramol. dimer via charge-assisted N-H...O hydrogen bonds, topol. analogous to the mixed metal supramol. complex [CoIII(h5-C5H4CONHC5H4N)2](+)[Fe(h5-C5H4COOH)2], which has also been prepd. and characterized. The differences in hydrogen bonding have been analyzed.
| Titolo: | Novel Organometallic Building Blocks for Molecular Crystal Engineering. 3. Synthesis, Characterization, and Hydrogen Bonding of the Crystalline Mono- and Bis-Amide Derivatives of [CoIII(h5-C5H4-COOH)2]+ and of the Cationic Zwitterion [CoIII(h5-C5H4CONHC5H4NH)(h5-C5H4COO)]+. |
| Autore/i: | BRAGA, DARIO; POLITO, MARCO; GREPIONI, FABRIZIA |
| Autore/i Unibo: | |
| Anno: | 2004 |
| Rivista: | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1021/cg049942w |
| Abstract: | The synthesis and structural characterization of the mol. complexes [CoIII(h5-C5H4CONHC5H4N)2][PF6] (1), [CoIII(h5-C5H4CONHC5H4NH)(h5-C5H4COO)][PF6] (2), and of the supramol. adducts [CoIII(h5-C5H4CONHC5H4N)2][Fe(h5-C5H4COOH)2][PF6] (3) and [CoIII(h5-C5H4COO)2](-)[(C16H9CH2NH3)](+) (4) are reported together with an investigation of the hydrogen-bonding interactions in the solid state. Compd. [CoIII(h5-C5H4CONHC5H4NH)(h5-C5H4COO)](+) has been described as a cationic zwitterion in view of the charge sepn. arising from deprotonation of the carboxylic group and protonation of the pyridine moiety on the parent compd. [CoIII(h5-C5H4CONHC5H4N)(h5-C5H4COOH)](+). The complex forms a supramol. dimer via charge-assisted N-H...O hydrogen bonds, topol. analogous to the mixed metal supramol. complex [CoIII(h5-C5H4CONHC5H4N)2](+)[Fe(h5-C5H4COOH)2], which has also been prepd. and characterized. The differences in hydrogen bonding have been analyzed. |
| Data prodotto definitivo in UGOV: | 2005-10-03 16:04:26 |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
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http://hdl.handle.net/11585/9281
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