Featured Molecules: Crystal Violet, Fluorenone, and Fluorene
نویسندگان
چکیده
منابع مشابه
Mechanistic Studies on the Dibenzofuran Formation from Phenanthrene, Fluorene and 9–Fluorenone
We carried out molecular orbital theory calculations for the homogeneous gas-phase formation of dibenzofuran from phenanthrene, fluorene, 9-methylfluorene and 9-fluorenone. Dibenzofuran will be formed if ∙OH adds to C8a, and the order of reactivity follows as 9-fluorenone > 9-methylfluorene > fluorene > phenanthrene. The oxidations initiated by ClO∙ are more favorable processes, considering tha...
متن کاملQuantitative adsorption of crystal violet.
The formula for crystal violet given in Conn's book (1940) implies that quantitative measurement of the dye adsorbed by bacterial cells should be possible by a suitable micro-Kjeldahl procedure. At the present time there is no satisfactory method for estimating the degree of gram positivity although the need for such a procedure is recognized and is discussed by Bartholomew and Mittwer (1952). ...
متن کاملFluorene‐containing tetraphenylethylene molecules as lasing materials
A series of star-shaped oligofluorene molecules, each containing a TPE core, have been specifically designed and produced to show effective aggregation-induced emission (AIE). Each molecule differs either in the number of fluorene units within the arms (e.g., 1 or 4, compounds 4 and 5), or the terminal group positioned at the end of each arm (e.g., H, TMS, or TPA, compounds 4, 6, and 7). Althou...
متن کاملCrystal violet reactions of coagulase negative staphylococci.
Twenty four reference strains and 112 clinical isolates of coagulase negative staphylococci (CNS) were examined for their reactions in the crystal violet test. Some species gave a white reaction and others a purple reaction. Results were consistent and reproducible and each species gave only one pattern of crystal violet reaction. Within the limited variety of species represented in the clinica...
متن کاملResonant enhancement of two-photon absorption in substituted fluorene molecules.
The degenerate and nondegenerate two-photon absorption (2PA) spectra for a symmetric and an asymmetric fluorene derivative were experimentally measured in order to determine the effect of intermediate state resonance enhancement (ISRE) on the 2PA cross section delta. The ability to tune the individual photon energies in the nondegenerate 2PA (ND-2PA) process afforded a quantitative study of the...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 2003
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed080p1094