Paul A. Adams, David A. Baldwin, Carol E. Hepner, John M. Pratt
{"title":"Coordination of imidazole by hemin in organic and aqueous organic solvents","authors":"Paul A. Adams, David A. Baldwin, Carol E. Hepner, John M. Pratt","doi":"10.1016/S0006-3061(00)80132-5","DOIUrl":null,"url":null,"abstract":"<div><p>Equilibria between hemin and imidazole in various organic and aqueous organic solvents have been investigated by uv-visible spectrophotometry at 25°C, and the following types of equilibria have been established: <figure><img></figure> where S is a solvent molecule and only the axial ligands of hemin and its adducts are indicated. Equilibrium (A) occurs in DMSO, (B) in DMF, and equilibria such as (C) and (D) in ethyleneglycol. Still other equilibria are observed in aqueous DMF.</p></div>","PeriodicalId":9177,"journal":{"name":"Bioinorganic chemistry","volume":"9 6","pages":"Pages 479-494"},"PeriodicalIF":0.0000,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0006-3061(00)80132-5","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioinorganic chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0006306100801325","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 11
Abstract
Equilibria between hemin and imidazole in various organic and aqueous organic solvents have been investigated by uv-visible spectrophotometry at 25°C, and the following types of equilibria have been established: where S is a solvent molecule and only the axial ligands of hemin and its adducts are indicated. Equilibrium (A) occurs in DMSO, (B) in DMF, and equilibria such as (C) and (D) in ethyleneglycol. Still other equilibria are observed in aqueous DMF.