Thirty Years of Hide-and-Seek: Capturing Abundant but Elusive M@(8)-C Isomer, and the Study of Magnetic Anisotropy Induced in Dy Ion by the Fullerene π-Ligand.

Our knowledge about endohedral metallofullerenes (EMFs) is restricted to the structures with sufficient kinetic stability to be extracted from the arc-discharge soot and processed by chromatographic and structural techniques. For the most abundant rare-earth monometallofullerene M@C, experimental studies repeatedly demonstrated (9) and (6) carbon cage isomers, while computations predicted equal stability of the "missing" (8) isomer. Here we report that this isomer is indeed formed but has not been recovered from soot using standard protocols.

South African speech-language therapists' and audiologists' professional quality of life.

Background:  Limited research is available regarding the professional quality of life experiences of South African speech-language therapists and audiologists, despite the implications this has for wellbeing, quality of patient care, productivity and attrition from the professions.

Objectives:  This study explored levels of compassion satisfaction, burnout, and secondary traumatic stress, the relationships between these, differences on the basis of registration and years of experience and participants' perceptions of their professional quality of life.

Method:  A sample of 92 South African speech-language therapists and audiologists completed an online survey that included the Professional Quality of Life (ProQOL) scale.

A neutral diphosphene radical: synthesis, electronic structure and white phosphorus activation.

(Im)P-P(Dipp)˙ (1˙), a rare example of a neutral, mixed substituted diphosphene radical, has been prepared by reduction of (Im)PP(Dipp)[OTf] (2[OTf]) and (Im)PP(Cl)(Dipp) (3) with cobaltocene (CoCp) (Im = 4,5-dichloro-1,3-bis(1,3-diisopropylphenyl)-imidazol-2-yl, Dipp = 2,6-diisopropylphenyl). Radical compound 1˙ readily activates white phosphorus (P), resulting in the formation of an intriguing octaphosphane butterfly compound P(Im)(Dipp) (4).