Eight cationic heteroleptic iridium(III) complexes, [Ir(epqc) 2 (N^N)] + , were prepared in high yield from a cyclometalated iridium bridged-chloride dimer bearing two ethyl-2-phenylquinoline-4-carboxylate (epqc) ligands. Two X-ray crystallographic studies were undertaken on selected complexes (where the ancillary ligand N^N = 4,4'-dimethyl-2,2'-bipyridine and 4,7-diphenyl-1,10-phenanthroline) each confirming the proposed formulations, showing an octahedral coordination at Ir(III). In general, the complexes are luminescent (620-630 nm) with moderately long lifetimes indicative of phosphorescence. Hydrolysis of the ethyl ester moieties of the epqc ligands gave the analogous cinchophen-based complexes, which were water-soluble and visibly luminescent (568-631 nm). The spectroscopic and redox characterisation of the complexes was complemented by DFT and TD-DFT calculations, supporting the assignment of dominant 3 MLCT to the emissive character. † Electronic supplementary information (ESI) available: Data collection parameters for the crystallographic studies, electrochemical data for 3a-h, pictorial representations of the calculated frontier orbitals for 3a-h and 4a-h and Cartesian coordinates obtained from DFT calculations. CCDC 907280 and 907282.
Reed (2019) A new 30 meter resolution global shoreline vector and associated global islands database for the development of standardized ecological coastal units,
The facts of the Bulger case and its legal consequences, in
particular the judgements of the European Court of Human
Rights (ECHR), are summarised. A review of the literature
on child homicide indicates that this continues to be rare,
can neither be predicted nor prevented, and suggests that the
future outlook for such offenders may be good. The
recommendations of a committee set up by Justice (1996)
for changes in legislation and procedures concerning children who have killed, are congruent with the European
Court's judgements, but still woefully at odds with public
attitudes.
Figure 1. Map of Northern Alaska showing boundaries of the six assessment units (AUs) in the National Petroleum Reserve in Alaska (NPR-A) and adjacent areas. Assessment units include State waters. Older AUs assessed in 2010 are not shown.
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