Donor—Acceptor Biomorphs from the Ionic Self-Assembly of Porphyrins.
Microscale four–leaf clover–shaped structures are formed by self–assembly of anionic and cationic porphyrins. Depending on the metal complexed in the porphyrin macrocycle (Zn or Sn), the porphyrin cores are either electron donors or electron acceptors. All four combinations of these two metals in ca...
| Publicado en: | Journal of the American Chemical Society Vol. 132; no. 23; pp. 8194 - 8202 |
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| Autores principales: | , , , , , , , , , , , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
6/16/2010
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=51796656&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 51796656 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 6/16/2010 vid: 132 iid: 23 pid: 997 pub: American Chemical Society artinfo: ui: 51796656 10.1021/ja102194x ppf: 8194 ppct: 8 formats: tig: atl: Donor—Acceptor Biomorphs from the Ionic Self-Assembly of Porphyrins. aug: au: Martin, Kathleen E. Wang, Zhongchun Busani, Tito Garcia, Robert M. Zhu Chen Yingbing Jiang Yujiang Song Jacobsen, John L. Vu, Tony T. Schore, Neil E. Swartzentruber, Brian S. Medforth, Craig J. Shelnutt, John A. affil: Advanced Materials Laboratory and Center for Integrated Nano Technologies, Sandia National Laboratories, Albuquerque, New Mexico 87185-1349 Universidade Nova de Lisboa at CENIMAT/I3N, Departamento de Ciência dos Materials, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa and CEMOP-UNINOVA, 2829-516 Caparica, Portugal Department of Chemical & Nuclear Engineering, University of New Mexico, Albuquerque, New Mexico 87106, Department of Chemistry, University of California, Davis, California 95616, USA Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA su: Porphyrins Macrocyclic compounds Metal complexes Electrophiles X-ray diffraction Photoconductivity sug: subj: Porphyrins Macrocyclic compounds Metal complexes Electrophiles X-ray diffraction Photoconductivity ab: Microscale four–leaf clover–shaped structures are formed by self–assembly of anionic and cationic porphyrins. Depending on the metal complexed in the porphyrin macrocycle (Zn or Sn), the porphyrin cores are either electron donors or electron acceptors. All four combinations of these two metals in cationic tetra(N– ethanol–4–pyridinium)porphyrin and anionic tetra(sulfonatophenyl)porphyrin result in related cloverlike structures with similar crystalline packing indicated by X–ray diffraction patterns. The clover morphology transforms as the ionic strength and temperature of the self–assembly reaction are increased, but the structures maintain 4–fold symmetry. The ability to alter the electronic and photophysical properties of these solids (e.g., by altering the metals in the porphyrins) and to vary cooperative interactions between the porphyrin subunits raises the possibility of producing binary solids with tunable functionality. For example, we show that the clovers derived from anionic Zn porphyrins (electron donors) and cationic Sn porphyrins (electron acceptors) are photoconductors, but when the metals are reversed in the two porphyrins, the resulting clovers are insulators. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2010 holdings: @attributes: islocal: N |
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