@article { author = {Amiri, Ahmad and Binaeizadeh, Mohammad Reza and Fadaei, Farzaneh and Schenk-Joß, Kurt}, title = {The Flight of the Monarch: [Cu(L)(CH3CN)(PPh3)]ClO4 (L = 2,5-Diphenyl-3,4-bis(2-pyridyl) Cyclopenta-2,4-dien-1-one)}, journal = {Inorganic Chemistry Research}, volume = {2}, number = {1}, pages = {141-151}, year = {2018}, publisher = {Iranian Chemical Society}, issn = {2538-1865}, eissn = {2538-1865}, doi = {10.22036/icr.2017.27926.1026}, abstract = {The mononuclear complex [Cu(L)(CH3CN)(PPh3)]ClO4, (1), (L= 2,5-diphenyl-3,4-bis(2-pyridyl)cyclopenta-2,4-dien-1-one), has been synthesized and investigated by elemental analysis, IR, 1H NMR, UV-Vis spectroscopic methods and X-ray diffraction. The complex crystallizes in the non-centrosymmetric space group P212121 in accord with the asymmetric (atropisomer) Cu centre. Its coordination polyhedron has four vertices and is devoid of any symmetry. The [Cu(L)(CH3CN)(PPh3)]ClO4 is amongst the few MeL complexes crystallizing in a non-centrosymmetric space group. The bite-angle of the bidentate ligand L is 90.92(13)°, indicating some strain in the structure; this entails an enhanced instability of the complex with respect to strongly coordinating solvents. The crystal of 1 owes its cohesion to a multitude of weak C-H...O and C-H... interations. The electrochemistry of the complex shows three reversible ligand-centred reduction processes and an irreversible metal-centred one. This indicates that the coordination of the CuI(CH3CN)(PPh3) moiety to the L leads to the delocalization of electron density from L to the CuI(CH3CN)(PPh3) moiety.}, keywords = {Cu(I) complexes,Diene,crystal structure,Electrochemistry,Electrocatalyst}, url = {https://www.inorgchemres.org/article_46809.html}, eprint = {https://www.inorgchemres.org/article_46809_d427f8e32ff6101649416d0da7089b57.pdf} }