Simple Synthesis of an Allenylidene Heptavalent Rhenium(d0) Complex

This paper reports a simple way to synthesize an allenylidene rhenium(VII) complex. The diimido adamantyl-thiolato allenylidene rhenium(VII) complex 2 was obtained through a metathetical reaction of phosphonioalkylidyne rhenium complex 1 with diphenylketene and also structurally analyzed with X-ray diffraction. Complex 2 is the first d0 allenylidene complex with structure information.

Etiological classification of cerebral palsy in very low birthweight infants

As part of a longitudinal follow-up program a single case analysis of the history of 53 children with a birthweight of less than 1501 g, who had developed cerebral palsy, was performed. In 17 children (32%) a definite explanation for the neurological impairment and in another 17 (32%) at least a possible explanation could be found. In 19 of the 53 children (36%) the history was uneventful and did not offer a causal event. The common documentation in obstetric and pediatric case files left the cause of cerebral palsy undetected in one third of the cases.