Journal ArticleDOI
Structure and reactions of bis[tricarbonyl(π-cyclopentadienyl)chromium]
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In this article, the structure of the dimer is rationalized in terms of the structures of the Cr-Cr bond, and some facile CO substitution reactions, of [(π-C5H5Cr(CO)3]2]2 and (π -C 5H5)Cr( CO)3I with phosphorus(III) ligands are described.Abstract:
[(π-C5H5)Cr(CO)3]2 is extremely reactive. It readily undergoes reactions which involve homolytic or heterolytic scission of the Cr–Cr bond, or the insertion of another atom into it. These observations are rationalized in terms of the structure of the dimer, and this is discussed in detail. Some facile CO substitution reactions, of [(π-C5H5Cr(CO)3]2 and (π-C5H5)Cr(CO)3I with phosphorus(III) ligands are described.read more
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Journal ArticleDOI
Monosubstituted cyclopentadienyl half-sandwich transition metal complexes
TL;DR: In this article, the authors present a generale de travaux concernant la preparation and the structure moleculaire of complexes halogenes, acyles, avec des coordinats contenant de l'oxygene, soufre ou phosphore, des metallocenes ainsi que des composes metallocycliques.
Journal ArticleDOI
[Re(η5-C5H5)(CO)3]+ Family of 17-Electron Compounds: Monomer/Dimer Equilibria and Other Reactions
Daesung Chong,Derek R. Laws,Ayman Nafady,Paulo J. Costa,Arnold L. Rheingold,Maria José Calhorda,W. E. Geiger +6 more
TL;DR: DFT calculations show that the SOMO of 1+ is highly Re-based and hybridized to point away from the metal, thereby facilitating the dimerization process and other reactions of the Re(II) center.
Journal ArticleDOI
Scrutinizing low-spin Cr(II) complexes.
Christopher C. Scarborough,Christopher C. Scarborough,Stephen Sproules,Christian J. Doonan,Karl S. Hagen,Thomas Weyhermüller,Karl Wieghardt +6 more
TL;DR: The results further refine the scope of compounds that may be described as low-spin Cr(II) and reveal that this is a very rare oxidation state accessible only with ligands in the strong-field extreme of the spectrochemical series.
Book ChapterDOI
Unsaturated Dimetal Cyclopentadienyl Carbonyl Complexes
TL;DR: In this paper, the Cp* ligand is compared to the C5H4Me ligand, and it is shown that the C p' species is often higher than that of Cp compounds, while the chemistry is generally unaffected by the single methyl substituent.
Journal ArticleDOI
Polyatomic molecules and aggregates of main group 15/16 elements in of organochromium chemistry
TL;DR: The chemistry of hexacarbonyldicyclopentadienyltricarbonylchromium radical species with chalcogens (sulphur and selenium), pnicogens (phosphorus and arsenic) and tetraphosphorus trichalcogenides P 4 X 3 (XS, Se) is presented in this article.