A nine-ring fused terrylene diimide exhibits switching between red TADF and near-IR room temperature phosphorescence.

Herein, we report the first example of a terrylene diimide derivative that switches emission between thermally activated delayed fluorescence (TADF) and room temperature phosphorescence (RTP) in the red region. By design, the molecule TDI-cDBT boasts a symmetrical, consecutively fused nine-ring motif with a kite-like structure. The rigid core formed by the annulated dibenzothiophene moiety favoured efficient intersystem crossing and yielded a narrow-band emission with a full-width half maxima (FWHM) of 0.

A Bis-Porphyrin Cavitand Breathing-In to Constrict Bucky Balls.

Bis-porphyrin cages have long been exploited to bind fullerenes selectively for various applications. The major consideration for an effective binding here had been the cavity size. Herein, we structurally demonstrate that a bis-Ni-porphyrin cavitand having even a smaller cavity can host a larger fullerene by a breathing and ruffling mechanism.

Aminophenyl-substituted cobalt(iii) corrole: a bifunctional electrocatalyst for the oxygen and hydrogen evolution reactions.

Catalytic water splitting is a highly promising area of research for the development of a hydrogen-based society. Herein, the synthesis of the bifunctional AB-type cobalt(iii) corrole Co(BAPC)Py having the electron-withdrawing meso-pentafluorophenyl and the basic meso-p-aminophenyl substituents is reported. Cyclic voltammetric studies reveal that Co(BAPC)Py has two oxidation waves at 0.

TTK Chitra tilting disc heart valve model TC2: An assessment of fatigue life and durability.

Average age group of heart valve replacement in India and most of the Third World countries is below 30 years. Hence, the valve for such patients need to be designed to have a service life of 50 years or more which corresponds to 2000 million cycles of operation. The purpose of this study was to assess the structural performance of the TTK Chitra tilting disc heart valve model TC2 and thereby address its durability.

Real-time functional MR imaging (fMRI) for presurgical evaluation of paediatric epilepsy.

Background: The role of fMRI in the presurgical evaluation of children with intractable epilepsy is being increasingly recognized. Real-time fMRI allows the clinician to visualize functional brain activation in real time. Since there is no off-line data analysis as in conventional fMRI, the overall time for the procedure is reduced, making it clinically feasible in a busy clinical sitting.