2,4,7-Trinitrofluorenone as Reagent for Microscopic Fusion Analysis

Abstract

This work was undertaken in order to develop a rapid method of identification of small quantities of polynuclear aromatics such as might be obtained as

Partial characterization of a subtilisin inhibitor from black bean seeds

“…On the 28th day 60% of the original activity had been recovered. The unique feature of these results, as compared to the ones obtained by Laskowski & Wu (8) with the pancreatic secretory trypsin inhibitor, is the extremely slow reappearance of the enzyme activity.…”

Interaction of Quinones and Hydrocarbons Investigated by Microscopic Mixed Fusion Analysis

“…Such limited information cannot be expected to explain why solid addition compounds form between certain hydrocarbons and quiñones but not between others very similar in structure. No correlation appears to exist between either the standard oxidation reduction potentials of the quiñones as tabulated by Fieser and Fieser (8) or the ionization potentials of the hydrocarbon as calculated by Hedges and Matsen (4). The explanation must be closely related to subtle factors influencing the energetics of crystal formation.…”

The Solid-Liquid Phase Diagram Experiment: Updated for the Physical Chemistry Laboratory

“…The mixed fusion is probably the way to demonstrate the concept of compound formation. The conjugated ring system 2,4,7-trinitrofluorenone, TNF, forms congruently melting 1:1 addition compounds with many acromatics (12), and the phase diagram with frans-stilbene is shown in Figure 5. When the mixed fusion is viewed in plane light, the addition compound clearly is evident as a red band between the colorless stilbene and yellow TNF.…”