Chemically Induced Unfolding of Bovine Serum Albumin by Urea and Sodium Dodecyl Sulfate: A Spectral Study with the Polarity-Sensitive Charge-Transfer Fluorescent Probe (E)-3-(4-Methylaminophenyl)acrylic Acid Methyl Ester

ChemPhysChem ◽  
2009 ◽  
Vol 10 (9-10) ◽  
pp. 1664-1671 ◽  
Author(s):  
Shalini Ghosh ◽  
Nikhil Guchhait
Keyword(s):  
Charge Transfer ◽  
Methyl Ester ◽  
Bovine Serum Albumin ◽  
Sodium Dodecyl Sulfate ◽  
Acrylic Acid ◽  
Sodium Dodecyl ◽  
Acid Methyl Ester ◽  
Acid Methyl ◽  
Chemically Induced ◽  
Polarity Sensitive

Synthesen von Heterocyclen, CCIV1 Reaktionen mit cyclischen Oxalylverbindungen, XIX2 Eine einfache Synthese von 5-Benzoyl-6-phenyl-1.3-dioxin-4-onen / Syntheses of Heterocycles, CCIV1 Reactions of Cyclic Oxalyl Compounds, XIX 2 A Simple Synthesis of 5 Benzoyl-6-phenyl-1,3-dioxin-4-ones

1977 ◽  
Vol 32 (6) ◽  
pp. 701-704 ◽  
Author(s):  
Gert Kollenz ◽  
Erich Ziegler ◽  
Walter Ott ◽  
Gert Kriwetz
Keyword(s):  
Acetic Acid ◽  
Methyl Ester ◽  
Acrylic Acid ◽  
Acid Methyl Ester ◽  
The Other ◽  
Simple Synthesis ◽  
Acid Methyl ◽  
Other Hand

4-Benzoyl-5-phenyl-2,3-dihydrofuran-2,3-dione (1) reacts with aldehydes or ketones via the acylketene-intermediate (2) yielding the 1,3-dioxin-4-ones (3). The aldehyde derivatives (3 a-e) can be converted into the anilino-chalcone (5) or the anilino acrylic acid (6) by treating with aniline at 20 °C. 6 and diazomethane combine to the acrylic acid methyl ester (7), which by heating (200 °C) is cyclisized to the quinolin-4-ole (8). On the other hand, the keto derivatives 3f-h and aniline give the dibenzoyl acetic acid anilide (9).

Structure and degree of charge transfer of two polymorphs of a 1:1 molecular complex: [2,2′-bis-1,3-dithiole][9-dicyanomethylene-4,5,7-trinitrofluorene-2-carboxylic acid methyl ester] (TTF-MeDC2TNF)

2003 ◽  
Vol 59 (4) ◽  
pp. 505-511 ◽  
Author(s):  
Amparo Salmerón-Valverde ◽  
Sylvain Bernès ◽  
Juan Gerardo Robles-Martínez
Keyword(s):  
Charge Transfer ◽  
Carboxylic Acid ◽  
Methyl Ester ◽  
Acid Methyl Ester ◽  
Structural Features ◽  
Space Group ◽  
Acid Methyl ◽  
Organic Complexes ◽  
Crystal Packings ◽  
Degree Of Charge Transfer

A new organic charge-transfer complex, C18H7N5O8·C6H4S4, has been prepared using TTF (tetrathiafulvalene) as a donor (D) and MeDC2TNF (9-dicyanomethylene-4,5,7-trinitro-fluorene-2-carboxylic acid methyl ester) as an acceptor (A). Two monoclinic polymorphs of the 1:1 salt were crystallized and characterized by X-ray diffraction. Form α crystallizes in space group P21/n with Z′ = 1, while form β crystallizes in space group C2/c with Z′ = 1\over 2 and the MeDC2TNF moiety disordered across a twofold axis. Both phases have mixed-stack crystal packings, which are characteristic of semiconducting one-dimensional organic complexes. However, the observed crystal packings are significantly different, with a single D...A interlayer separation of 3.452 Å for the disordered β polymorph and interlayer separations of 3.378 and 3.483 Å in the case of the ordered α form. These variations are reflected in the degree of charge transfer, δ, which was estimated on the basis of the b 2u stretching-mode frequency shift observed in the IR spectra for the cyano groups of the MeDC2TNF radical anion. The fact that the charge transfer is more efficient for α-(TTF-MeDC2TNF) than for β-(TTF-MeDC2TNF) (δ = 0.35 and 0.31, respectively) is consistent with the structural features observed for each crystalline form.

Charge Transfer States in Merocyanine Neat Films and Its Blends with [6,6]-Phenyl-C61-butyric Acid Methyl Ester

2013 ◽  
Vol 117 (12) ◽  
pp. 6039-6048 ◽  
Author(s):  
Domantas Peckus ◽  
Andrius Devižis ◽  
Ramu̅nas Augulis ◽  
Steven Graf ◽  
Dirk Hertel ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Methyl Ester ◽  
Butyric Acid ◽  
Acid Methyl Ester ◽  
Acid Methyl ◽  
Butyric Acid Methyl Ester ◽  
Neat Films
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