Bond catastrophes in rhodium complexes: experimental charge-density studies of Rh(C(7)H(8))(P(t)Bu(3))Cl and Rh(C(7)H(8))(PCy(3))Cl.
Summary of "Bond catastrophes in rhodium complexes: experimental charge-density studies of Rh(C(7)H(8))(P(t)Bu(3))Cl and Rh(C(7)H(8))(PCy(3))Cl."
Rhodium complexes have potential uses in both catalysis and promoting the cleavage of C-C bonds. In order to further our understanding of these species and their potential applications, it is vital to obtain insight into the bonding within the species, particularly the Rh-C interactions, and to this end experimental charge-density studies have been undertaken on the title complexes. High-resolution single-crystal datasets to sin θ/λ = 1.06 Å(-1) were obtained at 100 K and analysed using Bader's `Atoms in Molecules' (AIM) approach. The results of the studies have provided unique insights into the bonding involving rhodium and highlight the importance of undertaking such investigations for transition metal compounds.
Durham University Department of Chemistry, University Science Laboratories, South Road, Durham DH1 3LE, England.
This article was published in the following journal.
Name: Acta crystallographica. Section B, Structural science
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20841918
- DOI: http://dx.doi.org/10.1107/S0108768110031496
Medical and Biotech [MESH] Definitions
Rhodium. A hard and rare metal of the platinum group, atomic number 45, atomic weight 102.905, symbol Rh. (Dorland, 28th ed)
Groups that serve as a standard for comparison in experimental studies. They are similar in relevant characteristics to the experimental group but do not receive the experimental intervention.
An atom or group of atoms that have a positive or negative electric charge due to a gain (negative charge) or loss (positive charge) of one or more electrons. Atoms with a positive charge are known as CATIONS; those with a negative charge are ANIONS.
Artificial substitutes for body parts and materials inserted into organisms during experimental studies.
Ubiquitin-protein Ligase Complexes
Complexes of enzymes that catalyze the covalent attachment of UBIQUITIN to other proteins by forming a peptide bond between the C-terminal GLYCINE of UBIQUITIN and the alpha-amino groups of LYSINE residues in the protein. The complexes play an important role in mediating the selective-degradation of short-lived and abnormal proteins. The complex of enzymes can be broken down into three components that involve activation of ubiquitin (UBIQUITIN-ACTIVATING ENZYMES), conjugation of ubiquitin to the ligase complex (UBIQUITIN-CONJUGATING ENZYMES), and ligation of ubiquitin to the substrate protein (UBIQUITIN-PROTEIN LIGASES).
The charge density in the tri-iron methoxymethylidyne cluster Fe(3)(μ-H)(μ-COMe)(CO)(10) (1) has been studied experimentally at 100 K and by DFT calculations on the isolated molecule using the Quant...
Transition-metal complexes containing (C-C)→M σ-interactions have potential applications in both catalysis and the activation and cleavage of C-C bonds. Fully characterising the bonding and interac...
The aromaticity of the ring and cage isomer of a hexasilabenzene derivative was investigated by experimentally determined charge-density distribution. Topological analysis and valence-shell charge con...
A series of sixteen Schiff bases (derivatives of salicylaldehydes and aryl amines) was studied to reveal the influence of substituents and the length of the linker on the properties of the H-bonding f...
The molecular electron densities of structurally related cationic ([(κ(2)-3-P(i)Pr(2)-2-NMe(2)-indene)Rh(COD)](CF(3)SO(3)), [1c](CF(3)SO(3))) and formally zwitterionic ([(κ(2)-3-P(i)Pr(2)-2-NMe(2)-i...
The Veterans Health Administration (VHA) has stated the need for a brief screening instrument that can assist with the triage of the enormous number of returning OEF/OIF veterans with conc...
The purpose of this study is to compare the clinical performance of three dental adhesive systems used to bond Class V cavity fillings in adult teeth.
This study examines the effect of 1800 mg/day standardized Brooke Bond black tea extract, equivalent to 400 mg flavonoids, on Flow Mediated Dilation in healthy Indian males.
Studies have shown that lactation is associated with a loss of bone density from four to seven percent at the spine and hip among women who lactate for six months. Decline in bone density...
The study will be a prospective cohort study of 20 patients recruited from site's Defibrillator Clinic patient population who are followed at the site. Hypothesis: Among the available EGM...