Electron paramagnetic resonance studies of riboflavin and its derivatives. II. The alloxazine semiquinones in acid
EPR spectra of several alloxazine semiquinones in concentrated HCl and DCl solutions have been obtained. These have been interpreted in terms of the distribution of the unpaired electron in the radicals. The results have been compared with those obtained with the closely related isoalloxazines and w...
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Veröffentlicht in: | Archives of biochemistry and biophysics 1963-11, Vol.103 (2), p.244-248 |
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creator | Guzzo, Anthony V. Tollin, Gordon |
description | EPR spectra of several alloxazine semiquinones in concentrated HCl and DCl solutions have been obtained. These have been interpreted in terms of the distribution of the unpaired electron in the radicals. The results have been compared with those obtained with the closely related isoalloxazines and with the results of Hückel M.O. calculations. |
doi_str_mv | 10.1016/0003-9861(63)90401-6 |
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II. The alloxazine semiquinones in acid</title><source>MEDLINE</source><source>Elsevier ScienceDirect Journals</source><creator>Guzzo, Anthony V. ; Tollin, Gordon</creator><creatorcontrib>Guzzo, Anthony V. ; Tollin, Gordon</creatorcontrib><description>EPR spectra of several alloxazine semiquinones in concentrated HCl and DCl solutions have been obtained. These have been interpreted in terms of the distribution of the unpaired electron in the radicals. The results have been compared with those obtained with the closely related isoalloxazines and with the results of Hückel M.O. calculations.</description><identifier>ISSN: 0003-9861</identifier><identifier>EISSN: 1096-0384</identifier><identifier>DOI: 10.1016/0003-9861(63)90401-6</identifier><identifier>PMID: 14084587</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Chemical Phenomena ; Chemistry ; Electron Spin Resonance Spectroscopy ; Flavins ; Heterocyclic Compounds ; Old Medline ; Riboflavin ; Spectrum Analysis</subject><ispartof>Archives of biochemistry and biophysics, 1963-11, Vol.103 (2), p.244-248</ispartof><rights>1963</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c275t-17862a656460dedc76561a4e32cf973682b17bd74b80e103ac15c590c5bd01c73</citedby><cites>FETCH-LOGICAL-c275t-17862a656460dedc76561a4e32cf973682b17bd74b80e103ac15c590c5bd01c73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/0003986163904016$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/14084587$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Guzzo, Anthony V.</creatorcontrib><creatorcontrib>Tollin, Gordon</creatorcontrib><title>Electron paramagnetic resonance studies of riboflavin and its derivatives. II. The alloxazine semiquinones in acid</title><title>Archives of biochemistry and biophysics</title><addtitle>Arch Biochem Biophys</addtitle><description>EPR spectra of several alloxazine semiquinones in concentrated HCl and DCl solutions have been obtained. These have been interpreted in terms of the distribution of the unpaired electron in the radicals. The results have been compared with those obtained with the closely related isoalloxazines and with the results of Hückel M.O. calculations.</description><subject>Chemical Phenomena</subject><subject>Chemistry</subject><subject>Electron Spin Resonance Spectroscopy</subject><subject>Flavins</subject><subject>Heterocyclic Compounds</subject><subject>Old Medline</subject><subject>Riboflavin</subject><subject>Spectrum Analysis</subject><issn>0003-9861</issn><issn>1096-0384</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1963</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kMFu1DAQhi1ERbcLb4CQT6gcsoxjx3EuSKgq7UqVuJSz5dgTMErsrZ2sgKevo13BjdPM4fv_0XyEvGWwY8DkRwDgVacku5b8QwcCWCVfkA2DTlbAlXhJNn-RS3KV808AxoSsX5FLJkCJRrUbkm5HtHOKgR5MMpP5HnD2libMMZhgkeZ5cR4zjQNNvo_DaI4-UBMc9XOmDpM_mtkfMe_ofr-jjz-QmnGMv8wfH0oaJ_-0-BBDqVhz1rvX5GIwY8Y357kl377cPt7cVw9f7_Y3nx8qW7fNXLFWydrIRgoJDp1ty8qMQF7boWu5VHXP2t61oleADLixrLFNB7bpHTDb8i15f-o9pPi0YJ715LPFcTQB45K14rwTIFUBxQm0KeaccNCH5CeTfmsGenWtV5F6FallmavrsmzJu3P_0k_o_oXOcgvw6QRg-fLoMelsPRapzqciXbvo_3_hGQvNjo8</recordid><startdate>196311</startdate><enddate>196311</enddate><creator>Guzzo, Anthony V.</creator><creator>Tollin, Gordon</creator><general>Elsevier Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>196311</creationdate><title>Electron paramagnetic resonance studies of riboflavin and its derivatives. II. The alloxazine semiquinones in acid</title><author>Guzzo, Anthony V. ; Tollin, Gordon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c275t-17862a656460dedc76561a4e32cf973682b17bd74b80e103ac15c590c5bd01c73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1963</creationdate><topic>Chemical Phenomena</topic><topic>Chemistry</topic><topic>Electron Spin Resonance Spectroscopy</topic><topic>Flavins</topic><topic>Heterocyclic Compounds</topic><topic>Old Medline</topic><topic>Riboflavin</topic><topic>Spectrum Analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Guzzo, Anthony V.</creatorcontrib><creatorcontrib>Tollin, Gordon</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Archives of biochemistry and biophysics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Guzzo, Anthony V.</au><au>Tollin, Gordon</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electron paramagnetic resonance studies of riboflavin and its derivatives. II. The alloxazine semiquinones in acid</atitle><jtitle>Archives of biochemistry and biophysics</jtitle><addtitle>Arch Biochem Biophys</addtitle><date>1963-11</date><risdate>1963</risdate><volume>103</volume><issue>2</issue><spage>244</spage><epage>248</epage><pages>244-248</pages><issn>0003-9861</issn><eissn>1096-0384</eissn><abstract>EPR spectra of several alloxazine semiquinones in concentrated HCl and DCl solutions have been obtained. These have been interpreted in terms of the distribution of the unpaired electron in the radicals. The results have been compared with those obtained with the closely related isoalloxazines and with the results of Hückel M.O. calculations.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>14084587</pmid><doi>10.1016/0003-9861(63)90401-6</doi><tpages>5</tpages></addata></record> |
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subjects | Chemical Phenomena Chemistry Electron Spin Resonance Spectroscopy Flavins Heterocyclic Compounds Old Medline Riboflavin Spectrum Analysis |
title | Electron paramagnetic resonance studies of riboflavin and its derivatives. II. The alloxazine semiquinones in acid |
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