Journal of the Brazilian Chemical Society | |
Tuning of photochemical and photophysical properties of [RuII(2,2'-bipyridine)2Lx] complexes using nonchromophoric ligand variations | |
Daniel, Juliana F. S.1  Lima, Francisco C. A.1  Universidade Federal de São Carlos, São Carlos, Brazil1  Lima-Neto, Benedito S.1  Universidade de São Paulo, São Carlos, Brazil1  Santos, Evania D. A.1  Camilo, Mariana R.1  Carlos, Rose M.1  Inglez, Simone D.1  | |
关键词: DFT; TDDFT; photophysical; photochemistry; ruthenium; 2; 2'-bipyridine; | |
DOI : 10.1590/S0103-50532010000100023 | |
学科分类:化学(综合) | |
来源: SciELO | |
【 摘 要 】
MO calculations were carried out on a cis-[Ru(bpy)2Lx](PF6) 2 complex, where bpy is 2,2'-bipyridine and L is 3-aminopyridine (complex 1 with x = 2), with the Gaussian 03 package using the DFT method. The electronic structure and molecular properties of 1 were characterized in vacuum and in acetonitrile solution, and the results were compared to those obtained from the complex with L = 5,6-bis(3-amidopyridine)-7-oxanorbornene (complex 2 with x = 1). The electronic spectra of 1 and 2 were investigated by TD-DFT. Experimental data from cyclic voltammetry, UV-visible spectroscopy, photochemical and photophysical experiments were compared to the theoretical data to discover the influence of L on the electronic transitions and to interpret the differences between the photochemical behaviors of these complexes.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO201912050580832ZK.pdf | 2374KB | download |