Built-in Axial Base Binding on Phenanthroline-Strapped Zinc(II) and Iron(III) Porphyrins
In addition to the need for functional models of cytochrome c oxidase, structural models are still required for a better understanding of the small reorganizations occurring during the catalytic cycle. An efficient synthetic approach has been designed to prepare several phenanthroline-strapped porph...
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| Veröffentlicht in: | Inorganic chemistry 2006-12, Vol.45 (26), p.10750-10757 |
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| container_issue | 26 |
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| container_title | Inorganic chemistry |
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| creator | Melin, Frédéric Choua, Sylvie Bernard, Maxime Turek, Philippe Weiss, Jean |
| description | In addition to the need for functional models of cytochrome c oxidase, structural models are still required for a better understanding of the small reorganizations occurring during the catalytic cycle. An efficient synthetic approach has been designed to prepare several phenanthroline-strapped porphyrins, two of them bearing two pendant imidazoles. These built-in bases are both potentially able to act as axial bases for the metalloporphyrin and as complementary ligands for copper if necessary. Diamagnetic zinc(II) was used to demonstrate that the distal/proximal selectivity demonstrated by exogenic bases binding studies can be extended to the coordination of iron(III). Combination of EPR and paramagnetic 1H NMR shows that the imidazole binding on the zinc species can be further extended to the iron(III) species in dilute conditions. |
| doi_str_mv | 10.1021/ic0611185 |
| format | Article |
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An efficient synthetic approach has been designed to prepare several phenanthroline-strapped porphyrins, two of them bearing two pendant imidazoles. These built-in bases are both potentially able to act as axial bases for the metalloporphyrin and as complementary ligands for copper if necessary. Diamagnetic zinc(II) was used to demonstrate that the distal/proximal selectivity demonstrated by exogenic bases binding studies can be extended to the coordination of iron(III). 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Combination of EPR and paramagnetic 1H NMR shows that the imidazole binding on the zinc species can be further extended to the iron(III) species in dilute conditions.</description><subject>Copper - chemistry</subject><subject>Cytochromes c - chemistry</subject><subject>Cytochromes c - metabolism</subject><subject>Iron - chemistry</subject><subject>Models, Chemical</subject><subject>Molecular Structure</subject><subject>Phenanthrolines - chemistry</subject><subject>Porphyrins - chemistry</subject><subject>Zinc - chemistry</subject><issn>0020-1669</issn><issn>1520-510X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNptkMtKw0AUhgdRtF4WvoBko9hFdC6ZyWRpxUuhaNCKxc0wSU7s1HQSZxKob2-kRTeuzvk5H_-BD6Fjgi8IpuTS5FgQQiTfQgPCKQ45wbNtNMC434kQyR7a936BMU5YJHbRHolJzCJGB2g26kzVhsYGVyujq2CkPQQjYwtj34PaBukcrLbt3NWVsRA-t043DRTBm7H5-Xg8DLQtgrGrbR_6lNaumX85Y_0h2il15eFoMw_Qy-3N9Po-nDzeja-vJqFmnLQhLwsZFRkkLJZUU8AR41CKPJEyY5CzIpM6iTAVBDijFKjWGdFMllnGpYyBHaCzdW_j6s8OfKuWxudQVdpC3XklJOWxwLQHh2swd7X3DkrVOLPU7ksRrH40ql-NPXuyKe2yJRR_5MZbD4RrwPgWVr937T6UiFnM1TR9Vk_sAd-mUapee_50zevcq0XdOds7-efxN_5thmA</recordid><startdate>20061225</startdate><enddate>20061225</enddate><creator>Melin, Frédéric</creator><creator>Choua, Sylvie</creator><creator>Bernard, Maxime</creator><creator>Turek, Philippe</creator><creator>Weiss, Jean</creator><general>American Chemical Society</general><scope>BSCLL</scope><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>20061225</creationdate><title>Built-in Axial Base Binding on Phenanthroline-Strapped Zinc(II) and Iron(III) Porphyrins</title><author>Melin, Frédéric ; Choua, Sylvie ; Bernard, Maxime ; Turek, Philippe ; Weiss, Jean</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a351t-5fd84dbe93782a2e0435ef6c988b3ec3db8a940261e5322e2aab1a38fbb5887e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Copper - chemistry</topic><topic>Cytochromes c - chemistry</topic><topic>Cytochromes c - metabolism</topic><topic>Iron - chemistry</topic><topic>Models, Chemical</topic><topic>Molecular Structure</topic><topic>Phenanthrolines - chemistry</topic><topic>Porphyrins - chemistry</topic><topic>Zinc - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Melin, Frédéric</creatorcontrib><creatorcontrib>Choua, Sylvie</creatorcontrib><creatorcontrib>Bernard, Maxime</creatorcontrib><creatorcontrib>Turek, Philippe</creatorcontrib><creatorcontrib>Weiss, Jean</creatorcontrib><collection>Istex</collection><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>Inorganic chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Melin, Frédéric</au><au>Choua, Sylvie</au><au>Bernard, Maxime</au><au>Turek, Philippe</au><au>Weiss, Jean</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Built-in Axial Base Binding on Phenanthroline-Strapped Zinc(II) and Iron(III) Porphyrins</atitle><jtitle>Inorganic chemistry</jtitle><addtitle>Inorg. Chem</addtitle><date>2006-12-25</date><risdate>2006</risdate><volume>45</volume><issue>26</issue><spage>10750</spage><epage>10757</epage><pages>10750-10757</pages><issn>0020-1669</issn><eissn>1520-510X</eissn><abstract>In addition to the need for functional models of cytochrome c oxidase, structural models are still required for a better understanding of the small reorganizations occurring during the catalytic cycle. An efficient synthetic approach has been designed to prepare several phenanthroline-strapped porphyrins, two of them bearing two pendant imidazoles. These built-in bases are both potentially able to act as axial bases for the metalloporphyrin and as complementary ligands for copper if necessary. Diamagnetic zinc(II) was used to demonstrate that the distal/proximal selectivity demonstrated by exogenic bases binding studies can be extended to the coordination of iron(III). Combination of EPR and paramagnetic 1H NMR shows that the imidazole binding on the zinc species can be further extended to the iron(III) species in dilute conditions.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>17173432</pmid><doi>10.1021/ic0611185</doi><tpages>8</tpages></addata></record> |
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| source | MEDLINE; ACS Publications |
| subjects | Copper - chemistry Cytochromes c - chemistry Cytochromes c - metabolism Iron - chemistry Models, Chemical Molecular Structure Phenanthrolines - chemistry Porphyrins - chemistry Zinc - chemistry |
| title | Built-in Axial Base Binding on Phenanthroline-Strapped Zinc(II) and Iron(III) Porphyrins |
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