Ultrafast ligand exchange: detection of a pentacoordinate Ru(II) intermediate and product formation. Academic Article

abstract

• The ultrafast kinetics of ligand exchange of cis-[Ru(bpy)(2)(CH(3)CN)(2)](2+) were measured in H(2)O and CH(3)CN. The formation of the (3)MLCT excited-state and a five-coordinate intermediate are observed in both solvents within 2 ps after excitation (310 nm, fwhm approximately 300 fs). The (3)MLCT excited-state undergoes vibrational cooling (5-6 ps), then decays to regenerate the ground-state with a lifetime of approximately 50 ps. In CH(3)CN, ligand recombination takes place in 28 ps, while the formation of cis-[Ru(bpy)(2)(CH(3)CN)(H(2)O)](2+) in H(2)O takes place with tau = 77 ps.

authors

• Dunbar, Kim

published proceedings

• J Am Chem Soc

author list (cited authors)

• Liu, Y., Turner, D. B., Singh, T. N., Angeles-Boza, A. M., Chouai, A., Dunbar, K. R., & Turro, C.

citation count

• 83

complete list of authors

• Liu, Yao||Turner, David B||Singh, Tanya N||Angeles-Boza, Alfredo M||Chouai, Abdellatif||Dunbar, Kim R||Turro, Claudia

publication date

• January 2009

publisher

• American Chemical Society (ACS)  Publisher

published in

• Journal of the American Chemical Society  Journal

keywords

• Biotechnology

PubMed Central ID

• 19072048

Digital Object Identifier (DOI)

• 10.1021/ja806860w

start page

• 26

end page

• 27

volume

• 131

issue

• 1

URL

• http://dx.doi.org/10.1021/ja806860w