ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Chemistry of Chiral Tetraphenylcyclopentadienes: X-ray Structures of Rh(.eta.5-C5Ph4R*)(.eta.4-C8H12) (R* = Menthyl, Neomenthyl)Jim A. Ramsden, David J. Milner, Harry Adams, Neil A. Bailey, Arnold J. Smith, and Colin WhiteCite this: Organometallics 1995, 14, 5, 2575–2584Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 May 1995https://pubs.acs.org/doi/10.1021/om00005a065https://doi.org/10.1021/om00005a065research-articleACS PublicationsRequest reuse permissionsArticle Views188Altmetric-Citations10LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (2)»Supporting Information Supporting Information Get e-Alerts
In Synechococcus PCC 6301 (Anacystis nidulans) the imposition of nitrogen stress resulted in substantial losses of phycobiliproteins, lesser changes in chlorophyll-proteins and a dramatic change in carotenoid composition. In nitrogen-depleted cultures carotenoids continued to be synthesised, with the increase being accounted for by zeaxanthin with β-carotene content declining slightly. In these cultures zeaxanthin accounted for 75% of the carotenoid present compared to 43% in nitrogen-replete cells. Amounts of D1, a protein associated with the Photosystem II reaction centre, were similar in nitrogen-replete and nitrogen-starved cells; this retention was in accord with those of β-carotene and chlorophyll. On nitrate replenishment, zeaxanthin was not produced for 36 h, by which time β-carotene level had increased to restore the carotenoid composition characteristic of an exponential culture, and normal phycocyanin and chlorophyll levels had also been recovered. Throughout, the ratio of β-carotene to chlorophyll remained more-or-less constant.
[Th(SO 4 ) 2 (CH 4 N 2 O) 4 (H 2 O)]-2H 2 O cristallise dans C2/c avec a=16,17, b=8,15, c=32,01, β=93,52 o , Z=8; affinement jusqu'a R=0,023. L'atome de thorium est lie a neuf atomes d'oxygene, quatre appartenant aux ligands sulfato et quatre autres ligands uree. Un atome d'oxygene de l'eau complete la coordination prismatique thromboedrique trichapeautee
The complexes [C5Me5M(C6H4CO2)(Me2SO)](1a, M = Rh; 1b, M = Ir), and [(p-cymene)Os(C6H4CO2)(Me2SO)], containing cyclometallated benzoic acid, have been prepared and characterised; carbonylation of (1a) yields phthalic anhydride.