منابع مشابه
Electron - impact spectroscopy of various diketone compoundsa >
The spectra ofthe diketone compounds biacetyl, acetylacetone, acetonylacetone, 1,2cyclohexanedione, and 1,4-cyclohexanedione have been investigated by the technique oflowenergy variable-angle electron energy-loss spectroscopy. With this method low-lying, spinforbidden transitions have been observed. The energy difference between the lowest spin-allowed and spin-forbidden n-+ 1r* excitations in ...
متن کاملEmergent mechanistic diversity of enzyme-catalysed β-diketone cleavage
The enzymatic cleavage of C–C bonds in β-diketones is, comparatively, a little studied biochemical process, but one that has important relevance to human metabolism, bioremediation and preparative biocatalysis. In recent studies, four types of enzymes have come to light that cleave C–C bonds in the β-diketone functionality using different chemical mechanisms. OPH [oxidized poly(vinyl alcohol) h...
متن کاملLong noncoding miRNA gene represses wheat β-diketone waxes.
The cuticle of terrestrial plants functions as a protective barrier against many biotic and abiotic stresses. In wheat and other Triticeae, β-diketone waxes are major components of the epicuticular layer leading to the bluish-white glaucous trait in reproductive-age plants. Glaucousness in durum wheat is controlled by a metabolic gene cluster at the WAX1 (W1) locus and a dominant suppressor INH...
متن کاملRearrangement of cyclotriveratrylene (CTV) diketone: 9,10-diarylanthracenes with OLED applications.
Electroluminescent 9,10-diaryl anthracenes have been shown to be promising host and hole-transporting materials in organic electroluminescence due to their high thermal stability, electrochemical reversibility, and wide band gap useful for organic light-emitting diodes (OLEDs), especially blue OLEDs. Oxidation of cyclotriveratrylene (CTV) to the corresponding diketone and subsequent bromination...
متن کاملNovel 15-crown-5 ether or beta-diketone incorporated gadolinium complexes for the detection of potassium ions or magnesium and calcium ions.
Novel gadolinium complexes (KMR-series: KMR-K and KMR-Mg), which have a bis-15-crown-5 ether or a charged beta-diketone structure as a recognition site, have been designed, synthesized and applied for the detection of K(+) or of Mg(2+) and Ca(2+) using MRI or NMR techniques. The measurements are based on the modulation of the longitudinal relaxation time (T(1)) of water protons in proximity of ...
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ژورنال
عنوان ژورنال: Justus Liebig's Annalen der Chemie
سال: 1894
ISSN: 0075-4617,1099-0690
DOI: 10.1002/jlac.18942810104