Luminescent polypyridyl heteroleptic Cr^III complexes with high quantum yields and long excited state lifetimes

Abstract

Implementing high quantum yields and long-lived excited states lifetimes within heteroleptic luminescent Cr(III) complexes is a keystone for the design of supramolecular energy-converting devices exploiting this cheap metal. In this...

A Near‐Infrared‐II Emissive Chromium(III) Complex

“…[36] C is an additional electron‐electron repulsion parameter required to calculate the energy of the 2 E state (equation S2), and using the above‐mentioned relationship, a value of 470 cm −1 is obtained for the Racah B parameter. For the previously investigated [Cr(ddpd) 2 ] 3+ and [Cr(dqp) 3 ] 3+ compounds B ‐values of 760 cm −1 and 660 cm −1 have been reported (Table 1 ),[ 5 , 9b ] falling into the typical range of Racah B parameters of Cr 3+ doped oxides, fluorides, and chlorides (600–750 cm −1 ). [37]…”

Phototherapeutic anticancer strategies with first-row transition metal complexes: a critical review

“…Although some chromium complexes possessing high 1 O 2 quantum yields have been reported, 61,62 their phototoxic activities are generally rather disappointing. The biological study of a Cr( iii ) complex which was expected to be very promising as a PDT PS was reported in 2019 by the Heinze and Gasser groups ( Cr-1 , Fig.…”

Bright Long‐Lived Circularly Polarized Luminescence in Chiral Chromium(III) Complexes

“…Va lues of 14-15 %w ere obtained for 3 and 4 respectively,t ogether with ar ecord of 17 %f or 2.T hese values are amongt he highest values reported up to date for deuterium-free Cr III complexes in aqueous solutions. [55,[57][58][59][60][61][62] Theh ighly emissive character of…”