Synthesis and Characterization of Luminescent Square-Planar Platinum(II) Complexes Containing Dithiolate or Dithiocarbamate Ligands

Synthesis, Structure, Optical Properties and Theoretical Studies of Pt(P−P)(CN)2 with P−P = 1,2‐Bis(diphenylphosphanyl)benzene and 2,2′‐Bis(diphenylphosphanyl)‐1,1′‐binaphthyl − Luminescence from Metal‐to‐Ligand Charge Transfer and Intraligand States

“…Scheme 2 In the dimers the cyanide ligands occupy trans positions and both square-planar Pt II complex moieties are connected by bridging phosphanes. With regard to the complexes Pt(dppb)(CN) 2 and Pt(binap)(CN) 2 , our analytical data do not provide an unambiguous distinction. The MS spectra indicate the presence of monomers as well as dimers.…”

“…The complexes Pt(dppb)(CN) 2 ). At room temperature, solutions of dppb are not emissive, but in ethanol glasses at 77 K a strong phosphorescence appears at λ max ϭ 502 nm.…”

“…At room temperature, solutions of dppb are not emissive, but in ethanol glasses at 77 K a strong phosphorescence appears at λ max ϭ 502 nm. The absorption spectrum of Pt(dppb)(CN) 2 …”

Reaction of the Tetrachalcogenides [ME4(dppe)] (M = Pd, E = S; M = Pt, E = S, Se) with Activated Alkynes to Form Dithiolenes and Diselenolenes

“…The Pt-P distances in 2b (2.268, 2.265 Å ) may be compared with those in [Pt{S 2 C 2 S 2 CS}(dppe)] (2.258, 2.250 Å ) [21] and [Pt{S 2 C 2 (CN) 2 }(dppe)] (2.262, 2.252 Å ). [22] Comparable Pt-S distances to those in 2b (2.297, 2.318 Å ) are found in [Pt{S 2 C 2 (CO 2 Me) 2 }{P(OMe) 3 } 2 ] (2.300, 2.302 Å ) [23] and [Pt{S 2 C 2 (CO 2 Me) 2 }(PPh 3 ) 2 ] (2.304 Å ). [12] Crystals of 3b suitable for study by X-ray diffraction could not be obtained.…”

Serendipitous compositional and structural diversity in urotropine adducts of binary cadmium xanthates

“…This transition is assigned as an intra-ligand π → π* charge transfer [89] Low intensity bands were observed around 360 nm which are assigned to ligand metal charge transfer (LMCT) bands [89]. The similarity of the spectra is consistent with lack of significant influence of the alkyl group on electronic transitions [82,89,90]. The spectra of the Cd(S2COR)2 compounds exhibit very similar absorptions but with distinctive values of ε in the case of the R = Me and Et compounds but, with near equivalence when R = iPr.…”