Spectroscopic studies on [(DD18C6H 2)(HPA) 2](PA) 2 and [(DD18C6H 2)(DDQ) 2](DDQH) 2 formed in the reaction of N, N′-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane with HPA and DDQ
The interaction of the mixed oxygen–nitrogen cyclic base, N, N′-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DD18C6) with π-acceptors such as picric acid (HPA) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) has been studied spectrophotometrically in chloroform at 25 °C. The results ob...
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container_title | Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy |
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creator | Teleb, Said M. Gaballa, Akmal S. Elmosallamy, M.A.F. Nour, El-Metwally |
description | The interaction of the mixed oxygen–nitrogen cyclic base,
N,
N′-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DD18C6) with π-acceptors such as picric acid (HPA) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) has been studied spectrophotometrically in chloroform at 25
°C. The results obtained indicate the formation of 1:4 charge–transfer complexes with the general formula (DD18C6)(acceptor)
4. The electronic and infrared spectra of charge–transfer complexes along with the
1H NMR spectra were recorded and discussed. Based on the data obtained, the complexes were formulated as [(DD18C6H
2)(HPA)
2](PA)
2 and [(DD18C6H
2)(DDQ)
2](DDQH)
2. A general mechanism explaining the formation of the DDQ complex has been suggested. |
doi_str_mv | 10.1016/j.saa.2004.10.014 |
format | Article |
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N,
N′-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DD18C6) with π-acceptors such as picric acid (HPA) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) has been studied spectrophotometrically in chloroform at 25
°C. The results obtained indicate the formation of 1:4 charge–transfer complexes with the general formula (DD18C6)(acceptor)
4. The electronic and infrared spectra of charge–transfer complexes along with the
1H NMR spectra were recorded and discussed. Based on the data obtained, the complexes were formulated as [(DD18C6H
2)(HPA)
2](PA)
2 and [(DD18C6H
2)(DDQ)
2](DDQH)
2. A general mechanism explaining the formation of the DDQ complex has been suggested.</description><identifier>ISSN: 1386-1425</identifier><identifier>DOI: 10.1016/j.saa.2004.10.014</identifier><identifier>PMID: 16043067</identifier><language>eng</language><publisher>England: Elsevier B.V</publisher><subject>1H NMR ; Aza Compounds - chemistry ; Benzoquinones - chemistry ; Charge–transfer ; Diazacrown ether ; Electrons ; Heterocyclic Compounds, 1-Ring - chemistry ; Magnetic Resonance Spectroscopy ; Molecular Structure ; Picrates - chemistry ; Spectrophotometry, Infrared ; Titrimetry ; UV–vis spectra ; π-Acceptors</subject><ispartof>Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2005-09, Vol.61 (11), p.2708-2712</ispartof><rights>2004</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c266t-c1d5a415e4036d7d9247a2d31458618d409021077800cd5c60a4221b16a6cfc13</citedby><cites>FETCH-LOGICAL-c266t-c1d5a415e4036d7d9247a2d31458618d409021077800cd5c60a4221b16a6cfc13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.saa.2004.10.014$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,778,782,3539,27911,27912,45982</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16043067$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Teleb, Said M.</creatorcontrib><creatorcontrib>Gaballa, Akmal S.</creatorcontrib><creatorcontrib>Elmosallamy, M.A.F.</creatorcontrib><creatorcontrib>Nour, El-Metwally</creatorcontrib><title>Spectroscopic studies on [(DD18C6H 2)(HPA) 2](PA) 2 and [(DD18C6H 2)(DDQ) 2](DDQH) 2 formed in the reaction of N, N′-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane with HPA and DDQ</title><title>Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy</title><addtitle>Spectrochim Acta A Mol Biomol Spectrosc</addtitle><description>The interaction of the mixed oxygen–nitrogen cyclic base,
N,
N′-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DD18C6) with π-acceptors such as picric acid (HPA) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) has been studied spectrophotometrically in chloroform at 25
°C. The results obtained indicate the formation of 1:4 charge–transfer complexes with the general formula (DD18C6)(acceptor)
4. The electronic and infrared spectra of charge–transfer complexes along with the
1H NMR spectra were recorded and discussed. Based on the data obtained, the complexes were formulated as [(DD18C6H
2)(HPA)
2](PA)
2 and [(DD18C6H
2)(DDQ)
2](DDQH)
2. A general mechanism explaining the formation of the DDQ complex has been suggested.</description><subject>1H NMR</subject><subject>Aza Compounds - chemistry</subject><subject>Benzoquinones - chemistry</subject><subject>Charge–transfer</subject><subject>Diazacrown ether</subject><subject>Electrons</subject><subject>Heterocyclic Compounds, 1-Ring - chemistry</subject><subject>Magnetic Resonance Spectroscopy</subject><subject>Molecular Structure</subject><subject>Picrates - chemistry</subject><subject>Spectrophotometry, Infrared</subject><subject>Titrimetry</subject><subject>UV–vis spectra</subject><subject>π-Acceptors</subject><issn>1386-1425</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kc9uEzEQxn0A0VJ4AC7IJ5RKu2HG6_VuxKlKKEGqCgg4IWQ5tld1tFmntgOkpz4Td16GJ8H5IyEunEb2fPP58_wIeYYwRkDxcjmOSo0ZAM_nMSB_QE6xakWJnNUn5HGMSwDAlsEjcoICeAWiOSW_Pq6tTsFH7ddO05g2xtlI_UC_jGYzbKdiTtn5aP7-4pyyr6N9oWow_7Znsw_7dq7znaDzYWUNdQNNN5YGq3Ry2dJ39Lqg17_vf5bGLexwt-1LLHiBUGBVJpuC8j9U2RQoskDdKb3Vvfc6KWO1Giz97tINzVn2CfJjT8jDTvXRPj3WM_L58vWn6by8evfm7fTiqtRMiFRqNLXiWFsOlTCNmTDeKGYq5HUrsDUcJsAQmqYF0KbWAhRnDBcolNCdxuqMvDj4roO_3diY5MpFbfs-h_KbKEULzYS3dRbiQajzSmOwnVwHt1JhKxHkjpNcysxJ7jjtrjKnPPP8aL5Z5K39nThCyoJXB4HNX_zmbJBROztoa1zI8KTx7j_2fwD2MZ0d</recordid><startdate>200509</startdate><enddate>200509</enddate><creator>Teleb, Said M.</creator><creator>Gaballa, Akmal S.</creator><creator>Elmosallamy, M.A.F.</creator><creator>Nour, El-Metwally</creator><general>Elsevier B.V</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>200509</creationdate><title>Spectroscopic studies on [(DD18C6H 2)(HPA) 2](PA) 2 and [(DD18C6H 2)(DDQ) 2](DDQH) 2 formed in the reaction of N, N′-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane with HPA and DDQ</title><author>Teleb, Said M. ; Gaballa, Akmal S. ; Elmosallamy, M.A.F. ; Nour, El-Metwally</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c266t-c1d5a415e4036d7d9247a2d31458618d409021077800cd5c60a4221b16a6cfc13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>1H NMR</topic><topic>Aza Compounds - chemistry</topic><topic>Benzoquinones - chemistry</topic><topic>Charge–transfer</topic><topic>Diazacrown ether</topic><topic>Electrons</topic><topic>Heterocyclic Compounds, 1-Ring - chemistry</topic><topic>Magnetic Resonance Spectroscopy</topic><topic>Molecular Structure</topic><topic>Picrates - chemistry</topic><topic>Spectrophotometry, Infrared</topic><topic>Titrimetry</topic><topic>UV–vis spectra</topic><topic>π-Acceptors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Teleb, Said M.</creatorcontrib><creatorcontrib>Gaballa, Akmal S.</creatorcontrib><creatorcontrib>Elmosallamy, M.A.F.</creatorcontrib><creatorcontrib>Nour, El-Metwally</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>Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Teleb, Said M.</au><au>Gaballa, Akmal S.</au><au>Elmosallamy, M.A.F.</au><au>Nour, El-Metwally</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spectroscopic studies on [(DD18C6H 2)(HPA) 2](PA) 2 and [(DD18C6H 2)(DDQ) 2](DDQH) 2 formed in the reaction of N, N′-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane with HPA and DDQ</atitle><jtitle>Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy</jtitle><addtitle>Spectrochim Acta A Mol Biomol Spectrosc</addtitle><date>2005-09</date><risdate>2005</risdate><volume>61</volume><issue>11</issue><spage>2708</spage><epage>2712</epage><pages>2708-2712</pages><issn>1386-1425</issn><abstract>The interaction of the mixed oxygen–nitrogen cyclic base,
N,
N′-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DD18C6) with π-acceptors such as picric acid (HPA) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) has been studied spectrophotometrically in chloroform at 25
°C. The results obtained indicate the formation of 1:4 charge–transfer complexes with the general formula (DD18C6)(acceptor)
4. The electronic and infrared spectra of charge–transfer complexes along with the
1H NMR spectra were recorded and discussed. Based on the data obtained, the complexes were formulated as [(DD18C6H
2)(HPA)
2](PA)
2 and [(DD18C6H
2)(DDQ)
2](DDQH)
2. A general mechanism explaining the formation of the DDQ complex has been suggested.</abstract><cop>England</cop><pub>Elsevier B.V</pub><pmid>16043067</pmid><doi>10.1016/j.saa.2004.10.014</doi><tpages>5</tpages></addata></record> |
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source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
subjects | 1H NMR Aza Compounds - chemistry Benzoquinones - chemistry Charge–transfer Diazacrown ether Electrons Heterocyclic Compounds, 1-Ring - chemistry Magnetic Resonance Spectroscopy Molecular Structure Picrates - chemistry Spectrophotometry, Infrared Titrimetry UV–vis spectra π-Acceptors |
title | Spectroscopic studies on [(DD18C6H 2)(HPA) 2](PA) 2 and [(DD18C6H 2)(DDQ) 2](DDQH) 2 formed in the reaction of N, N′-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane with HPA and DDQ |
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