Syntheses and characterization of novel ruthenium complexes based on 1,3-dicyanobenzene

Dicyanobenzene passivated perovskite solar cells with enhanced efficiency and stability

“…Confirmation of interaction between DCB and Pb 2+ by UV-Vis spectroscopy DCB can function as a Lewis base and form organometallic complexes with some transition metal ions such as Cu(I), Ag(I), Ru(II), and Fe(III) through the coordination of the donor nitrogen atom of the CN group with the metal cation. [33][34][35][36][37][38] We expected that a similar interaction might occur between DCB and Pb 2+ and DCB could be used as a passivation agent to reduce the content of free PbI 2 in the resulting perovskite films.…”

“…DCB has been used as mono-and/or bidentate ligands to form organometallic complexes with some transition metal ions such as Cu(I), Ag(I), Ru(II), and Fe(III). [33][34][35][36][37][38] Therefore, DCBs may be useful passivating agents for the perovskite layer of PSCs. Several advantages of using DCB as a passivating agent are expected.…”

cis-Dichloridotetrakis(trimethylphosphane-κP)ruthenium(II) benzene disolvate

“…For general background to trans-[RuCl 2 (P(CH 3 ) 3 ) 4 ], see: Csok et al (2007); Gotzig et al (1985); Hartwig et al (1991); Hirano et al (2010); Kohlmann & Werner (1993). For a related structure, see: Joo et al (1994).…”

“…Data collection: CrysAlis CCD (Oxford Diffraction, 2008); cell refinement: CrysAlis RED (Oxford Diffraction, 2008); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL. ruthenium compounds (Hartwig et al, 1991;Kohlmann & Werner, 1993;Csok et al, 2007;Hirano et al, 2010).…”