Synthesis and X-ray Diffraction Structures of 2-(2-thienylidene)-4,5-bis-(diphenylphosphino)-4-cyclopenten-1,3-dione and fac-BrRe(CO)3[2-(2-thienylidene)-4,5-bis(diphenylphosphino)-4-cyclopenten-1,3-dione]

Treatment of 4,5 bis-(diphenylphosphino)-cyclopenten-1,3 dione with thiophene carboxyaldehyde in dichloromethane, in the presence of molecular sieves results in a new heterocyclic compound, 2-(2-thienylidene)-4,5-bis(diphenylphosphino)-4-cyclopenten-1,3-dione (ligand), with a high yield. This product was characterized by using both IR and NMR spectroscopic techniques and the solid-state structure of the ligand was determined using X-ray crystallography. When the ligand was treated with the solvent stabilized intermediate of ReBr(CO)5 with THF, a monomeric metal complex, fac-BrRe(CO)3[2-(2-thienylidene)-4,5-bis(diphenylphosphino)-4-cyclopenten-1,3-dione] was the result. The solid-state structure of the monomeric metal complex was determined using X-ray crystallography. Photolysis and thermolysis studies of the complex will be further explored.

Grantor dc:publisher

University of North Texas

Year dc:date

2005

Author dc:creator

• Pingali, Aparna

Contributors dc:contributor

• Richmond, Michael
• Mason, Diana

• Metal clusters.
• Ligands.
• Organometallic compounds.
• X-ray crystallography
• phosphine ligands
• IR spectroscopy
• NMR spectroscopy
• rhenium THF derivative
• fac-BrRe(CO)3(bma)

Statement dc:rights

• Public
• Copyright
• Pingali, Aparna
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 69659465
https://digital.library.unt.edu/ark:/67531/metadc4942/
ark: ark:/67531/metadc4942

OAI identifier oai:identifier

info:ark/67531/metadc4942