activity of the cyclometalated ruthenium(II) complexes [Ru(bpy)2(C^N)]Cl, we have studied the interaction of these complexes using calf thymus DNA (CT-DNA) and cytotoxicity assays with two tumor (L1210 and HeLa) and a non-tumor (BALB/3T3 clone A31) cell lines. It is suggested that the complexes act as intercalators and/or DNA minor groove binders. Moreover, the complexes display favorable cytotoxicity
[EN] CYCLOMETALATED DYE COMPLEXES AND THEIR USE IN DYE-SENSITIZED SOLAR CELLS<br/>[FR] COMPLEXES COLORANTS CYCLOMÉTALLÉS ET LEUR UTILISATION DANS DES PILES SOLAIRES SENSIBILISÉES PAR COLORANT
申请人:BERLINGUETTE CURTIS P
公开号:WO2011032269A1
公开(公告)日:2011-03-24
The present invention provides a modular approach to preparing a large array of substituted cyclometalated compounds which behave as dyes having intense absorbance bands in the visible spectrum The compounds include at least one terpyridine-type ligand (tpy) and one cyclometalated tridentate ligand having the bonding motif N,C,N' or C,N, N'. In particular, compounds of formula (I) and formula (II), as shown, where M and R1 to R4 are as defined herein, are disclosed The utility of these compounds in dye-sensitized solar cells (DSSCs) is also taught.
Enantiospecific Synthesis of Δ and Λ [Ru(bpy)<sub>2</sub>ppy]<sup>+</sup> and [Ru(bpy)<sub>2</sub>quo]<sup>+</sup> (bpy = 2,2‘-Bipyridine, ppy = Phenylpyridine-H<sup>+</sup>, quo = 8-Hydroxyquinolate): <sup>1</sup>H and <sup>13</sup>C NMR Studies and X-ray Structure Determination of <i>r</i><i>ac</i>-[Ru(bpy)<sub>2</sub>quo]PF<sub>6</sub>
and [Ru(bpy)(2)quo](+) (bpy = 2,2'-bipyridine, ppy = phenylpyridine-H(+), quo = 8-hydroxyquinolate) in their enantiomeric Delta and Lambda forms. The corresponding enantiomeric excesses (ee's) are determined by (1)H NMRusing pure Delta-Trisphat (tris(tetrachlorobenzenedialato)phosphate(V) anion) as a chiral (1)H NMRshiftreagent. A complete (1)H and (13)C NMRstudy has been carried out on rac-[Ru(bpy)(2)ppy]PF(6)
Rational Design of Three-Dimensional (3D) Optically Active Molecule-Based Magnets: Synthesis, Structure, Optical and Magnetic Properties of {[Ru(bpy)<sub>3</sub>]<sup>2+</sup>, ClO<sub>4</sub><sup>-</sup>, [Mn<sup>II</sup>Cr<sup>III</sup>(ox)<sub>3</sub>]<sup>-</sup>}<i><sub>n</sub></i> and {[Ru(bpy)<sub>2</sub>ppy]<sup>+</sup>, [M<sup>II</sup>Cr<sup>III</sup>(ox)<sub>3</sub>]<sup>-</sup>}<i><sub>n</sub></i>, with M<sup>II</sup> = Mn<sup>II</sup>, Ni<sup>II</sup>. X-ray Structure of {[ΔRu(bpy)<sub>3</sub>]<sup>2+</sup>, ClO<sub>4</sub><sup>-</sup>, [ΔMn<sup>II</sup>ΔCr<sup>III</sup>(ox)<sub>3</sub>]<sup>-</sup>}<i><sub>n</sub></i> and {[ΛRu(bpy)<sub>2</sub>ppy]<sup>+</sup>, [ΛMn<sup>II</sup>ΛCr<sup>III</sup>(ox)<sub>3</sub>]<sup>-</sup>}<i><sub>n</sub></i>
Lambda [Ru(bpy)3, ClO4](+) or Delta or Lambda [Ru(bpy)3ppy](+) (bpy = bipyridine; ppy = phenylpyridine). Such cations are able to template the formation of optically active 3D anionic networks in which transition metal ions (Cr-Mn) and (Cr-Ni) are connected by oxalate ligands (ox). Following this strategy, we described the synthesis of ([Ru(bpy)3](2+), ClO4(-), [Mn(II)Cr(III)(ox)3](-))n and ([Ru(bpy)2ppy](+)