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Synthesis and crystal structures of silver(I) bridged tetra-phenyl-pyrylium complexes from tetraphenyl-cyclopentadiene
- Source :
-
Inorganica Chimica Acta . Apr2005, Vol. 358 Issue 7, p2355-2362. 8p. - Publication Year :
- 2005
-
Abstract
- Abstract: Reactions of silver(I) perchlorate with tetraphenyl-cyclopentadiene (Ph4H2C5) have isolated two novel silver(I) bridged tetraphenyl-pyrylium complexes: [Ag(ClO4)(Ph4HC5O+)](ClO4)− (1) and (2), depending on moisture-content of the reactants. Structure studies using single-crystal X-ray diffraction have showed that complex 1 contains a distorted tetrahedral metal center bridging two neighboring peripheral phenyl rings of one pyrylium cation and two perchlorate anions, whereas 2 involves a three-coordinate metal ion interacting with a pair of phenyl rings and one water molecule, leaving two perchlorate anions free from coordination. For both complexes, the precursor ligand Ph4H2C5 undergoes a ring-enlargement reaction, forming a six-membered pyrylium cation. The fundamentals of the synthesis, structure characterization and some properties are discussed. [Copyright &y& Elsevier]
- Subjects :
- *PYRYLIUM compounds
*HYDROGEN-ion concentration
*CATIONS
*ANIONS
Subjects
Details
- Language :
- English
- ISSN :
- 00201693
- Volume :
- 358
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Inorganica Chimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 19174640
- Full Text :
- https://doi.org/10.1016/j.ica.2005.01.009