Regioselective Synthesis and Characterization of Multinuclear Convex-Bound Ruthenium-[n]Cycloparaphenylene (n = 5 and 6) Complexes.
Mono- and multinuclear complexes of ruthenium and [n]cycloparaphenylene (CPP, n = 5 and 6) were synthesized in excellent yields through ligand exchange of the cationic complex [(Cp)Ru(CH3CN)3](PF6) with CPP. In the multinuclear complexes, ruthenium selectively coordinated to alternate paraphenylene units to give bis- and tris-coordinated Ru complexes for [5] and [6]CPPs, respectively. Single-crystal X-ray analysis revealed the Ru was coordinated with η(6)-hapticity on the convex surface of CPP.
Institute for Chemical Research, Kyoto University, Kyoto 611 0011 (Japan).|Core Research for Evolutional Science and Technology (CREST) Japan Science and Technology Agency (JST), Tokyo (Japan).
Eiichi
E
Kayahara
Institute for Chemical Research, Kyoto University, Kyoto 611 0011 (Japan).|Core Research for Evolutional Science and Technology (CREST) Japan Science and Technology Agency (JST), Tokyo (Japan).
Vijay Kumar
VK
Patel
Department of Organic Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211 Geneva 4 (Switzerland).
Audrey
A
Mercier
Department of Organic Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211 Geneva 4 (Switzerland).
E Peter
EP
Kündig
Institute for Chemical Research, Kyoto University, Kyoto 611 0011 (Japan). yamago@scl.kyoto-u.ac.jp.|Core Research for Evolutional Science and Technology (CREST) Japan Science and Technology Agency (JST), Tokyo (Japan). yamago@scl.kyoto-u.ac.jp.
Shigeru
S
Yamago
X-ray diffraction; arene ligands; cycloparaphenylenes; regioselecitivity; ruthenium