Ueber einige phosphorescirende organische Körper

Chemiluminescent reactions of lucigenin. 1. Reactions of lucigenin with hydrogen peroxide

“…Materials. A,A'-Dimethyl-9,9'-biacridinium nitrate (1) (Aldrich Chemical Co.) was repeatedly recrystallized from ethanol-water (5/95 v/v) to give orange crystals that were dried at 100 °C (0.1 mmHg) for 24 h, mp 250 °C dec (lit.5 250 °C). UV-vis (water, pH 3.72): 453 nm (log e 3.93), 430 (4.03), 420 (3.95), 369 (4.55), 354 (4.24), 260 (5.22).…”

“…Measurements of pH were performed with a Radiometer Model 26 pH meter equipped with Model EA-125 (Metrohm) or GK-2302C (Radiometer) electrodes. High-pressure liquid chromatographic analyses were carried out on a Lichrosorb reverse phase (10 X 250 nm, 1 O-µ particles) column using a Schoeffel Instrument SF 770 spectroflow monitor equipped with an Altex solvent metering system Model 100 and a Varían Associates CDC 101 integrater. Photon counting was carried out with quantum photometers Model 1140A (Princeton Applied Research) equipped with 1P28A photomultiplier lubes (30 °C).…”

“…Lophine (1877),1 luminol (1928),2 and lucigenin (1935)3 stand as the classic organic chemiluminescent agents. Of these three compounds, the chemiluminescent (CL) reactions of 7V,7V'-dimethyl-9,9/-biacridine (lucigenin, 1) are possibly the least understood. Indeed, chemiluminescence has been reported to occur on the addition of numerous nucleophiles and reducing agents to solutions of 1.…”

Near-infrared chemiluminescence tunable from 900 nm to 1700 nm from narrow-bandgap compounds and polymers

“…Typical examples include the reactions of an oxidizing agent (e.g. hydrogen peroxide or oxygen) with phthalhydrazide derivatives (luminol), [7][8][9] dimethylbiacridinium ions (lucigenin), [10][11][12] imidazole derivatives (lophine), 13,14 acridinium salts 15,16 and oxalyl chloride in the presence of fluorescent dyes. 17,18 Chemiluminescence has been utilized as a sensitive and convenient analytical tool in food analysis, 19,20 environmental and forensic sciences, 21,22 and for detection of hydrogen peroxide and biologically active compounds (e.g.…”

Lifetime Prediction of Rubber Using the Chemiluminescence Approach and Isoconversional Kinetics

“…[9] The fact that organic substances undergoing oxidation emit light wasr ecognised already during the second half of the 19th century. [10] In the past few years, chemiluminescence has gained wide acceptance as as ensitive method to study the oxidative degradation of organic solid substances. [11][12][13] …”