Crystalline Fibers of Metal–Peptide Double Ladders

Despite remarkable progress in the field of MOFs, structures based on long-flexible organic linkers are scarce and the majority of such materials rely on rigid linkers. In this work, crystals of a new metal–organic double ladder (MODL) are obtained by linking a pentapeptide (NH2-Glu-pCO2Phe-pCO2Phe-...

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Bibliographic Details
Published inInorganic chemistry Vol. 52; no. 24; pp. 13818 - 13820
Main Authors Peri, Dani, Ciston, Jim, Gándara, Felipe, Zhao, Yingbo, Yaghi, Omar M
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 16.12.2013
Subjects
Cadmium - chemistry
Crystallography, X-Ray
Microscopy, Electron, Scanning
Microscopy, Electron, Transmission
Models, Molecular
Nanofibers - chemistry
Peptides - chemistry
X-Ray Diffraction
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Summary:Despite remarkable progress in the field of MOFs, structures based on long-flexible organic linkers are scarce and the majority of such materials rely on rigid linkers. In this work, crystals of a new metal–organic double ladder (MODL) are obtained by linking a pentapeptide (NH2-Glu-pCO2Phe-pCO2Phe-Ala-Gly-OH) with cadmium acetate to produce a Cd(2-pyrrolidone-pCO2Phe-pCO2Phe-Ala-Gly)(H2O)3 framework. SEM and TEM analyses show the fibrous nature of the crystals and show that the infinite cadmium oxide rod secondary building units (SBUs) are aligned with the longitudinal axis of the nanofibers.
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ISSN:0020-1669
1520-510X
DOI:10.1021/ic402435z