Synthesis, characterization and photophysical properties of mixed ligand tris(polypyridyl)chromium(III) complexes, [Cr(phen)2L]3+

Detection of hydrophobic microdomains in anionic polyelectrolytes with tris-(4,7-diphenyl-1,10-phenanthroline)3Cr(III)

“…Consequently, the complex is able to distinguish between non aromatic and aromatic hydrophobic microdomains. For hydrophobic interactions between non aromatic groups the results are in good agreement with those reported for a series of tris-heteroleptic polypyridyl Cr(III) complexes [33], where the [Cr(phen) 2 (dip)] 3+ complex exhibits a strong luminescence and longer lifetime than the analogous [Cr(phen) 3 ] 3+ when both complexes are immersed in Nafion membranes. This indicates that the affinity between the hydrophobic character of the dip ligand and the apolar parts of the Nafion membrane is the main factor inducing luminescence phenomena.…”

[Cr(ddpd)2]3+: A Molecular, Water‐Soluble, Highly NIR‐Emissive Ruby Analogue

“…Figure S15). These quenching efficiencies [29] suggest possible applications of 1 3+ in optical oxygen sensors, [2,30] . .…”

“…[15] As expected, the phosphorescence quantum yield is sensitive to the presence of O 2 . [28,29] In air, F is reduced by factors of 5. Figure S15).…”

Heteroleptic chromium(III) tris(diimine) [Cr(N^N)2(N′^N′)]3+ complexes

“…We have extended the study to heteroleptic tris(diimine) [Cr(N^N) 2 (N'^N')] 3+ complexes and have embarked on a structural investigation of these complexes to probe the influence of the ligand set on the metal environment. Although the complexes [Cr(bpy) 3 ] 3+ (bpy = 2,2'-bipyridine) and [Cr(phen) 3 ] 3+ (phen = 1,10-phenanthroline) are well known [4], synthetic and structural studies of heteroleptic complexes remain sparse [5,6,7,8] [10]. These are easily replaced by the second ligand N'^N' [11].…”

“…The use of the triflate intermediate proves to be key to gaining heteroleptic chromium(III) complexes containing either tris(diimine) or bis(tpy) metal-binding domains, and in the former case, gives a route which is free of redistribution reactions involving the diimine ligands [11]. The method is preferred over routes involving perchlorates [6]. We first prepared [Cr(bpy) 2 [12].…”