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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Archives of biochemistry and biophysics 1963-11, Vol.103 (2), p.244-248
Hauptverfasser: Guzzo, Anthony V., Tollin, Gordon
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 248
container_issue 2
container_start_page 244
container_title Archives of biochemistry and biophysics
container_volume 103
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
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_83394068</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>0003986163904016</els_id><sourcerecordid>83394068</sourcerecordid><originalsourceid>FETCH-LOGICAL-c275t-17862a656460dedc76561a4e32cf973682b17bd74b80e103ac15c590c5bd01c73</originalsourceid><addsrcrecordid>eNp9kMFu1DAQhi1ERbcLb4CQT6gcsoxjx3EuSKgq7UqVuJSz5dgTMErsrZ2sgKevo13BjdPM4fv_0XyEvGWwY8DkRwDgVacku5b8QwcCWCVfkA2DTlbAlXhJNn-RS3KV808AxoSsX5FLJkCJRrUbkm5HtHOKgR5MMpP5HnD2libMMZhgkeZ5cR4zjQNNvo_DaI4-UBMc9XOmDpM_mtkfMe_ofr-jjz-QmnGMv8wfH0oaJ_-0-BBDqVhz1rvX5GIwY8Y357kl377cPt7cVw9f7_Y3nx8qW7fNXLFWydrIRgoJDp1ty8qMQF7boWu5VHXP2t61oleADLixrLFNB7bpHTDb8i15f-o9pPi0YJ715LPFcTQB45K14rwTIFUBxQm0KeaccNCH5CeTfmsGenWtV5F6FallmavrsmzJu3P_0k_o_oXOcgvw6QRg-fLoMelsPRapzqciXbvo_3_hGQvNjo8</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>83394068</pqid></control><display><type>article</type><title>Electron paramagnetic resonance studies of riboflavin and its derivatives. 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>
fulltext fulltext
identifier ISSN: 0003-9861
ispartof Archives of biochemistry and biophysics, 1963-11, Vol.103 (2), p.244-248
issn 0003-9861
1096-0384
language eng
recordid cdi_proquest_miscellaneous_83394068
source MEDLINE; Elsevier ScienceDirect Journals
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
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-24T04%3A27%3A06IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Electron%20paramagnetic%20resonance%20studies%20of%20riboflavin%20and%20its%20derivatives.%20II.%20The%20alloxazine%20semiquinones%20in%20acid&rft.jtitle=Archives%20of%20biochemistry%20and%20biophysics&rft.au=Guzzo,%20Anthony%20V.&rft.date=1963-11&rft.volume=103&rft.issue=2&rft.spage=244&rft.epage=248&rft.pages=244-248&rft.issn=0003-9861&rft.eissn=1096-0384&rft_id=info:doi/10.1016/0003-9861(63)90401-6&rft_dat=%3Cproquest_cross%3E83394068%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=83394068&rft_id=info:pmid/14084587&rft_els_id=0003986163904016&rfr_iscdi=true