On the anomaly of the metal-carbon bond strength in (CH3)2M compounds of the heavy elements M = Au-, Hg, Tl+ and Pb2+. Relativistic effects in metal-ligand force constants

1990 ◽  
Vol 112 (7) ◽  
pp. 2818-2820 ◽  
Author(s):  
Peter Schwerdtfeger
Keyword(s):  
Bond Strength ◽  
Relativistic Effects ◽  
Force Constants ◽  
Heavy Elements ◽  
Carbon Bond ◽  
Metal Ligand

Role of Metal–Ligand Bond Strength and Phase Separation on the Mechanical Properties of Metallopolymer Films

2013 ◽  
Vol 46 (14) ◽  
pp. 5416-5422 ◽  
Author(s):  
Aaron C. Jackson ◽  
Frederick L. Beyer ◽  
Samuel C. Price ◽  
B. Christopher Rinderspacher ◽  
Robert H. Lambeth
Keyword(s):  
Mechanical Properties ◽  
Phase Separation ◽  
Bond Strength ◽  
Metal Ligand ◽  
Ligand Bond

Stereochemical Change

2007 ◽  
Author(s):  
Robert B. Jordan
Keyword(s):  
Structural Changes ◽  
Axial Ligand ◽  
General Area ◽  
Ring Inversion ◽  
Carbon Bond ◽  
Carbon Carbon Bond ◽  
The Subject ◽  
Simple Systems ◽  
Current Stage ◽  
Metal Ligand

The kinetic and mechanistic aspects of this general area tend to be strongly dependent on the particular system. This makes general treatments and explanations impossible, at least at the current stage of understanding. Various aspects of this area have been summarized in some general reviews. Ligands bonded to a metal can undergo a number of structural changes that do not involve complete breaking of the metal-ligand bond(s). Such processes are the subject of the following sections. Many chelate ligands have conformers that can interconvert. For example, the conformers of ethylenediamine interchange by rotation about the carbon-carbon bond, as shown in the following structures: The Ha and Ha' protons are magnetically different from the Hb and Hb' protons, so their interconversion can, in principle, be studied by NMR. These protons may be referred to as exo and endo, respectively. In simple systems, their interconversion is too rapid (k >106 s-1) for this method. However, if there is some constraint (e.g., CH3 groups) or if the coordinating atoms are part of a larger chelate system, then interconversion is slow enough to be detected by NMR. In nonplanar Fe(III)- tetraphenylporphyrinates, the ring inversion rates vary widely, depending on the axial ligand and the substituents on the porphyrin.

The platinum—carbon bond strength in Pt(PPh3)2(Cl)(CPhCHPh)

1975 ◽  
Vol 96 (3) ◽  
pp. C58-C60 ◽  
Author(s):  
A. Evans ◽  
C.T. Mortimer ◽  
R.J. Puddephatt
Keyword(s):  
Bond Strength ◽  
Carbon Bond

Comparative study of the metal–ligand bond strength in MnII/X/U complexes (X=Cl, Br, I; U=urea)

2000 ◽  
Vol 525 (1-3) ◽  
pp. 173-183 ◽  
Author(s):  
R Keuleers ◽  
G.S Papaefstathiou ◽  
C.P Raptopoulou ◽  
S.P Perlepes ◽  
H.O Desseyn
Keyword(s):  
Bond Strength ◽  
Comparative Study ◽  
Metal Ligand ◽  
Ligand Bond

The platinumcarbon bond strength in Pt(PPh3)2(CH3)I

1979 ◽  
Vol 165 (2) ◽  
pp. 265-267 ◽  
Author(s):  
C.T. Mortimer ◽  
M.P. Wilkinson ◽  
R.J. Puddephatt
Keyword(s):  
Bond Strength ◽  
Carbon Bond
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