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4 results on '"Cameron W. Spahn"'

2. Structural analogues of the bimetallic reaction center in acetyl CoA synthase: a Ni--Ni model with bound CO

Author

Thomas B. Rauchfuss, Cameron W. Spahn, Scott R. Wilson, and Rachel C. Linck

Subjects
Photosynthetic reaction centre, Models, Molecular, Carbon Monoxide, Molecular model, biology, ATP synthase, Stereochemistry, Acetyl-CoA, Molecular Conformation, chemistry.chemical_element, Active site, Acetate-CoA Ligase, General Chemistry, Biochemistry, Catalysis, Adduct, Nickel, chemistry.chemical_compound, Colloid and Surface Chemistry, chemistry, Biomimetic Materials, biology.protein, Organometallic Compounds, Bimetallic strip
Abstract

Models for the active site of the acetyl CoA synthase (ACS) were synthesized by attachment of Cu+ and Ni(0) to nickel diaminodithiolate (S2N2) and diamidodithiolate (S2N2‘) complexes. The Ni−Ni species form stable CO adducts, i.e., [{(CO)2Ni}{NiS2N2‘}]2-, whereas the Cu-NiS2N2 and Cu-NiS2N2‘ models do not. These results provide supporting evidence for a biological role for reduced nickel in ACS.

Published
2003

3. A Stable, Highly Fluorescent Vinylogous β-Diketonate Silicon Complex

Author

Ilia A. Guzei, Robert West, Cameron W. Spahn, Yuxia Liu, Stephen A. Steiner, and and Irina S. Toulokhonova

Subjects
Inorganic Chemistry, chemistry.chemical_compound, Silicon, chemistry, Organic Chemistry, chemistry.chemical_element, Organic chemistry, Physical and Theoretical Chemistry, Fluorescence, Combinatorial chemistry, Derivative (chemistry)
Abstract

We report the synthesis of a novel, highly fluorescent pentacoordinate silicon compound which is apparently the first example of a vinylogous β-diketonate complex. The compound was generated by slow, solid-state oxidation of a methoxysilane derivative of tetraphenylcyclopentadiene.

Published
2007
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