Synthesis of biscyclometalated iridium(III) acetylacetonate complexes via a 15  min bridge-splitting reaction, their characterisations and photophysical properties

Publication date: 15 November 2017 Source:Journal of Organometallic Chemistry, Volume 851 Author(s): Nuray Altınölçek, Murat Aydemir, Mustafa Tavaslı, Paloma L. Dos Santos, Andrew P. Monkman Chloro-bridged diiridium(III) complexes (4a and 4b) were subjected to a bridge-splitting reaction with acetylacetone and sodium carbonate in 2-ethoxyethanol. The reaction was complete within 15 min and two novel biscyclometalated iridium(III) acetylacetonate complexes (5a and 5b) were successfully obtained in 41% and 63%, respectively. Complexes (5a and 5b) were fully characterised by 1H, 13C NMR, FT-IR and elemental analysis. UV-Vis spectra of complexes (5a and 5b) showed two absorption bands: a strong one appears below 400 nm due to ligand-centered (LC, π-π*) transitions and the weak one arises between 400 and 600 nm due to metal-to-ligand charge-transfer (MLCT, d- π*) transitions. The emission of the complexes (5a and 5b) arises in the red region of the spectrum, emitting ca. 675 nm for 5a and ca. 625 nm for 5b. A short emission lifetime (62 ns) for complex 5a indicates emission originates from 3LC transitions. However longer emission lifetime (657 ns) for complex 5b confirms that the emission totally results from 3MLCT transitions. Graphical abstract
Source: Journal of Organometallic Chemistry - Category: Chemistry Source Type: research

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Publication date: Available online 16 November 2019Source: Journal of Health EconomicsAuthor(s): Dimitris Christelis, Dimitris Georgarakos, Anna Sanz-de-GaldeanoAbstractEconomic theory predicts that a reduction in background risk should induce financial risk-taking, particularly for individuals with low stock market participation costs. Hence, health insurance coverage could affect financial risk-taking by offsetting health-related background risk. We use a regression discontinuity design to examine whether Medicare eligibility at age 65 increases stockholding in the US and find that it does so for those with college educa...
Source: Journal of Health Economics - Category: Health Management Source Type: research
In this study, serum IL6 was measured by ELISA, and the HSD11B1rs12086634(T/G) polymorphism was analyzed using a TaqMan allelic discrimination assay technique. There were statistically significant differences between the two studied groups concerning the serum IL-6 level and HSD11B1rs12086634(T/G) genotype distribution, with increased serum IL6 and increased frequencies of the GG and TG genotypes in patients with PCO. The GG genotype of HSD11B1 rs12086634(T/G) and its associated high level of serum IL-6 may represent genetic risk factors for PCOS.
Source: Meta Gene - Category: Genetics & Stem Cells Source Type: research
Publication date: Available online 17 November 2019Source: European UrologyAuthor(s): Tom Marcelissen, Kevin Rademakers
Source: European Urology - Category: Urology & Nephrology Source Type: research
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Source: European Urology - Category: Urology & Nephrology Source Type: research
Publication date: Available online 16 November 2019Source: European UrologyAuthor(s): Pirus Ghadjar, Thomas Wiegel
Source: European Urology - Category: Urology & Nephrology Source Type: research
Publication date: Available online 16 November 2019Source: European UrologyAuthor(s): Elise De Bleser, Piet Ost
Source: European Urology - Category: Urology & Nephrology Source Type: research
ConclusionThe CFQL-2 is a brief, reliable scale that effectively measures psychosocial aspects of QoL and is sensitive to changes in QoL in families of children with ASD or related neurodevelopmental disorders. Child externalizing behavior is strongly associated with reductions in multiple aspects of child and family psychosocial QoL.
Source: Research in Autism Spectrum Disorders - Category: Psychiatry Source Type: research
ConclusionThis meta-analysis suggested a significant association between MTHFR gene polymorphism (C677T and A1298C) and ASD risk.
Source: Research in Autism Spectrum Disorders - Category: Psychiatry Source Type: research
ConclusionGiven that obtaining negative margins is important in reducing the risk of recurrence, the method of surgical resection utilized is based on the amount of future functional residual hepatic parenchyma.
Source: International Journal of Surgery Case Reports - Category: Surgery Source Type: research
ConclusionsTattooing of axillary LNs is safe and easily performed. Tattooing was helpful in identifying the marked LN in the majority of cases. This technique helps to ensure that metastatic LNs are identified and removed at surgery after NAT.
Source: European Journal of Surgical Oncology (EJSO) - Category: Surgery Source Type: research
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