Synthesis and partial characterization of a new low gap polymer: poly-2(5)-propenylidenepyrrole
As a result of previous studies on the reactivity of 1-selenoallyl cationic species with pyrroles, a synthetic scheme, based on the dramatic solvent effects on the regiochemistry of these reactions, has been devised for the preparation of the polymeric material 6 composed of alternating propenyl and...
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| Veröffentlicht in: | Synthetic metals 1993, Vol.59 (2), p.201-210 |
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| container_title | Synthetic metals |
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| creator | Havesi, L. Proess, G. Lazarescu-Grigore, A. |
| description | As a result of previous studies on the reactivity of 1-selenoallyl cationic species with pyrroles, a synthetic scheme, based on the dramatic solvent effects on the regiochemistry of these reactions, has been devised for the preparation of the polymeric material
6 composed of alternating propenyl and pyrrole units. It is argued that oxidation of
6 using Ph
3CSbCl
6 or DDQ produces the title compound
8 where every other alternating pyrrole ring should have a quinoid structure. In agreement with theoretical predictions of bandgap lowering by these quinoid structure units, preliminary measurements on the undoped and iodine-doped
8 gave conductivity values of
δ = 1.1 × 10
−6 and
δ = (2.4−5.4) × 10
−6
μ
−1 cm
−1, respectively. |
| doi_str_mv | 10.1016/0379-6779(93)91027-Y |
| format | Article |
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6 composed of alternating propenyl and pyrrole units. It is argued that oxidation of
6 using Ph
3CSbCl
6 or DDQ produces the title compound
8 where every other alternating pyrrole ring should have a quinoid structure. In agreement with theoretical predictions of bandgap lowering by these quinoid structure units, preliminary measurements on the undoped and iodine-doped
8 gave conductivity values of
δ = 1.1 × 10
−6 and
δ = (2.4−5.4) × 10
−6
μ
−1 cm
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6 composed of alternating propenyl and pyrrole units. It is argued that oxidation of
6 using Ph
3CSbCl
6 or DDQ produces the title compound
8 where every other alternating pyrrole ring should have a quinoid structure. In agreement with theoretical predictions of bandgap lowering by these quinoid structure units, preliminary measurements on the undoped and iodine-doped
8 gave conductivity values of
δ = 1.1 × 10
−6 and
δ = (2.4−5.4) × 10
−6
μ
−1 cm
−1, respectively.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymers with particular properties</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><issn>0379-6779</issn><issn>1879-3290</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNp9kE1vFDEMhiMEEkvhH3DIAaH2MJCPmcmGA1JV8SVV4gAceoq8jkODssmQTKmGX89st-qRky3reV_bL2MvpXgjhRzfCm1sNxpjT60-s1Io0109Yhu5XcdaWfGYbR6Qp-xZa7-EENKqYcPctyXP19Ri45A9n6DOERLHa6iAM9X4F-ZYMi-BA890y1O55T9h4lNJy57qu7umU6fDWTfVMlFeUvSUaVpqLYmesycBUqMX9_WE_fj44fvF5-7y66cvF-eXHeqxn7setPaj3YKVY7A9iiAJexByh8oIBLOTfvCIgYQ11nulQSnaqWADodlu9Ql7ffRdj_h9Q212-9iQUoJM5aY5OQ5WSN2vYH8EsZbWKgU31biHujgp3CFNd4jKHaJyVru7NN3VKnt17w8NIYUKGWN70PbG6kHYFXt_xGj99U-k6hpGykg-VsLZ-RL_v-cf-MOKuw</recordid><startdate>1993</startdate><enddate>1993</enddate><creator>Havesi, L.</creator><creator>Proess, G.</creator><creator>Lazarescu-Grigore, A.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>1993</creationdate><title>Synthesis and partial characterization of a new low gap polymer: poly-2(5)-propenylidenepyrrole</title><author>Havesi, L. ; Proess, G. ; Lazarescu-Grigore, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c364t-4a33d698a916f94c0f1ec4a01bc270ca7b1d5dccfe0979dd23a22eb2f9fec7883</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polymers with particular properties</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Havesi, L.</creatorcontrib><creatorcontrib>Proess, G.</creatorcontrib><creatorcontrib>Lazarescu-Grigore, A.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Synthetic metals</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Havesi, L.</au><au>Proess, G.</au><au>Lazarescu-Grigore, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis and partial characterization of a new low gap polymer: poly-2(5)-propenylidenepyrrole</atitle><jtitle>Synthetic metals</jtitle><date>1993</date><risdate>1993</risdate><volume>59</volume><issue>2</issue><spage>201</spage><epage>210</epage><pages>201-210</pages><issn>0379-6779</issn><eissn>1879-3290</eissn><coden>SYMEDZ</coden><abstract>As a result of previous studies on the reactivity of 1-selenoallyl cationic species with pyrroles, a synthetic scheme, based on the dramatic solvent effects on the regiochemistry of these reactions, has been devised for the preparation of the polymeric material
6 composed of alternating propenyl and pyrrole units. It is argued that oxidation of
6 using Ph
3CSbCl
6 or DDQ produces the title compound
8 where every other alternating pyrrole ring should have a quinoid structure. In agreement with theoretical predictions of bandgap lowering by these quinoid structure units, preliminary measurements on the undoped and iodine-doped
8 gave conductivity values of
δ = 1.1 × 10
−6 and
δ = (2.4−5.4) × 10
−6
μ
−1 cm
−1, respectively.</abstract><cop>Lausanne</cop><cop>Amsterdam</cop><cop>New York, NY</cop><pub>Elsevier B.V</pub><doi>10.1016/0379-6779(93)91027-Y</doi><tpages>10</tpages></addata></record> |
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| ispartof | Synthetic metals, 1993, Vol.59 (2), p.201-210 |
| issn | 0379-6779 1879-3290 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_16590134 |
| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Exact sciences and technology Organic polymers Physicochemistry of polymers Polymers with particular properties Preparation, kinetics, thermodynamics, mechanism and catalysts |
| title | Synthesis and partial characterization of a new low gap polymer: poly-2(5)-propenylidenepyrrole |
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