Strong Charge-transfer Complex Research Articles

Spectroscopic demonstration of an initial stage of the complex of D-amino acid oxidase and its substrate D-α-aminobutyric acid

D-Amino acid oxidase [D-amino acid: O 2 oxidoreductase (deaminating), EC 1.4.3.3] was anaerobically mixed with its substrate D-α-aminobutyric acid at −10°C and pa H ∗ 7 which were apart from their maxima for the enzymatic reaction. By an ordinary self-recording spectrophotometer, the absorption spectrum of an initial stage of the complex could be observed. The spectrum was in principle similar to that of the complex of this enzyme with benzoate, the enzyme-substrate complex model. The spectroscopic observation revealed that this species is in an equilibrium with the purple intermediate, a strong charge transfer complex between the enzyme and its substrate neutral D-amino acid.

ChemInform Abstract: TRIMETHYLAMINE‐SO2, THE PROTOTYPE STRONG CHARGE‐TRANSFER COMPLEX

Chemischer InformationsdienstVolume 9, Issue 46 Physical Organic Chemistry ChemInform Abstract: TRIMETHYLAMINE-SO2, THE PROTOTYPE STRONG CHARGE-TRANSFER COMPLEX J. E. DOUGLAS, J. E. DOUGLASSearch for more papers by this authorP. A. KOLLMAN, P. A. KOLLMANSearch for more papers by this author J. E. DOUGLAS, J. E. DOUGLASSearch for more papers by this authorP. A. KOLLMAN, P. A. KOLLMANSearch for more papers by this author First published: November 14, 1978 https://doi.org/10.1002/chin.197846080AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume9, Issue46November 14, 1978 RelatedInformation

Isotope Effect on the Phase Transition Temperatures in Aromatic Hydrocarbon-Tetracyanobenzene Complexes

Abstract It is well established that electrical and magnetic properties of crystals are strongly influenced by structural phase transitions. The strong charge transfer complexes such as tetrathiofulvalene-tetracyanoquinodimethan (TTF-TCNQ) have been intensely studied(1) but much less is known concerning weak charge transfer complexes and the influence of solid-solid transitions on their properties. Typical examples of some weak charge transfer complexes are the 1:1 complexes formed between aromatic donors (e.g. naphthalene) and aromatic acceptors (e.g. 1,2,4,5 tetracyanobenzene, TCNB).

Trimethylamine-SO2, the prototype strong charge-transfer complex

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTrimethylamine-SO2, the prototype strong charge-transfer complexJohn E. Douglas and Peter A. KollmanCite this: J. Am. Chem. Soc. 1978, 100, 16, 5226–5227Publication Date (Print):August 1, 1978Publication History Published online1 May 2002Published inissue 1 August 1978https://doi.org/10.1021/ja00484a062RIGHTS & PERMISSIONSArticle Views241Altmetric-Citations28LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (2 MB) Get e-Alerts Get e-Alerts

Studies in Cyciocopolymerization. XIII. A Study of Steric Effects in Cyciocopolymerization of Divinyl Ether with Substituted Electron-Acceptor Alkenes

Abstract The equilibrium constants for charge-transfer (CT) complex formation between divinyl ether (DVE) and several sub-stituted maleic anhydrides and 2-cyclopentene-l,4-dione were measured in CHC13 by use of UV spectroscopy. The copolymerizaticn of DVE with these acceptor monoolefins produced regular cyclocopolymers of constant 1:1 or 1:2 (DVE:monoolefin) composition regardless of the feed composition. Comparison of the CT complexation and the cyciocopolymerization leads to the following conclusions: 1) A strong CT complex gives regular cyclocopolymer of constant 1:1 composition having a copolymer backbone made up of only 1,4-diene units: 2) when a monoolefin is un-reactive (often sterically), the 1:1 cyclocopolymer is pro-duced: and 3) if CT complexation is weak and the monoolefin is reactive toward radicals (but not so reactive as to homo-polymerize easily), a 1:2 alternating cyclocopolymer is produced. A facile and quantitative elimination of hydrogen halides with dilute aqueous NaOH solution was found.

Solvent effects on strong charge-transfer complexes. IV. Trimethylamine and sulfur dioxide in the vapor phase

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolvent effects on strong charge-transfer complexes. IV. Trimethylamine and sulfur dioxide in the vapor phaseJust Grundnes, Sherril D. Christian, Venghuot Cheam, and Sutton B. FarnhamCite this: J. Am. Chem. Soc. 1971, 93, 1, 20–23Publication Date (Print):January 1, 1971Publication History Published online1 May 2002Published inissue 1 January 1971https://doi.org/10.1021/ja00730a003RIGHTS & PERMISSIONSArticle Views59Altmetric-Citations9LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (502 KB) Get e-Alerts Get e-Alerts

Solvent Effects on Strong Charge Transfer Complexes. III. Trimethylamine and Sulphur Dioxide in Polar Solvents.

Solvent Effects on Strong Charge Transfer Complexes. III. Trimethylamine and Sulphur Dioxide in Polar Solvents.

Solvent Effects on Strong Charge Transfer Complexes. II. N,N-Dimethylthioformamide and Iodine in Nonpolar and Polar Solvents.

Solvent Effects on Strong Charge Transfer Complexes. II. N,N-Dimethylthioformamide and Iodine in Nonpolar and Polar Solvents.

Solvent effects on strong charge-transfer complexes. I. Trimethylamine and sulfur dioxide in gas and in heptane

Solvent effects on strong charge-transfer complexes. I. Trimethylamine and sulfur dioxide in gas and in heptane

The role of cell-uptake of polycyclic compounds in photodynamic injury of Tetrahymena pyriformis

The cell-uptake and photodynamic activity of 25 polycyclic compounds, with varying number of fused rings and with varying carcinogenicity were measured in T. pyriformis. The cell-uptake of these compounds varied inversely with their molecular size. High cell concentrations of polycyclics were shown to be prerequisite but not sufficient for high photodynamic activity. Furthermore, high photodynamic activity was not determined by cell concentration of polycyclics alone, even when adjustment was made for difference in light absorption of the compounds nor even when consideration was restricted to those compounds capable of forming strong charge-transfer complexes.