Transition metal complexes, structural

L. Guidoni, P. Maurer, S. Piana, and U. Rothlisberger (2002) Hybrid Car-Parrinello/Molecular Mechanics Modelling of Transition Metal Complexes Structure, Dynamics and Reactivity. Quant. Struct.-Act. Pel. 21, p. 119... 

Raymond, K. N. (1970) Changes in geometry of five-coordinate transition metal complexes structure and bonding. Proceedings of the Xlllth. International Conference on Coordination Chemistry, Vol. II, p. 94 ed. W. Kakolowicz, Polish Academy of Sciences. 

Haymore BL, Ibers JA (1975) Linear vs. bent nitrosyl ligands in four-coordinate transition metal complexes. Structure of dinitrosylbis (triphenylphosphme)osimum (—II)hemibenzene, Os (N0)2 (P (C6H5)3)2 l/2CsH6. Inorg Chem 14 2610-2617... 

All of these reactions involve transition metals such as palladium, copper, and ruthenium, usually in complex with certain types of ligands. After we see the practical applications of these reactions for carbon—carbon bond formation, we shall consider some general aspects of transition metal complex structure and representative steps in the mechanisms of transition metal—catalyzed reactions. We shall consider as specific examples the mechanism for a transition metal—catalyzed hydrogenation using a rhodium complex called Wilkinsons catalyst, and the mechanism for the Heck—Mizoroki reaction. 

A large number of organometallic compounds are based on transition metals Examples include organic derivatives of iron nickel chromium platinum and rhodium Many important industrial processes are catalyzed by transition metals or their complexes Before we look at these processes a few words about the structures of transition metal complexes are m order... 

Section 14 14 Transition metal complexes that contain one or more organic ligands offer a rich variety of structural types and reactivity Organic ligands can be bonded to a metal by a ct bond or through its it system Metallocenes are transition metal complexes m which one or more of the ligands is a cyclopentadienyl ring Ferrocene was the first metallocene synthesized Its electrostatic potential map opens this chapter... 

J Li, L Noodleman, DA Case. Electronic structure calculations Density functional methods with applications to transition metal complexes. In EIS Lever, ABP Lever, eds. Inorganic Electronic Structure and Spectroscopy, Vol. 1. Methodology. New York Wiley, 1999, pp 661-724. 

A variety of complexes of the thionyl imide anion [NSO] with both early and late transition-metal complexes have been prepared and structurally characterized. Since both ionic and covalent derivatives of this anion are readily prepared, e.g., K[NSO], McsMNSO (M = Si, Sn) or Hg(NSO)2, metathetical reactions of these reagents with transition-metal halide complexes represent the most general synthetic method for the preparation of these complexes (Eq. 7.10 and 7.11). ... 

Transition-metal complexes of the thionylimide anion exhibit characteristic vibrations in the regions 1260-1120, 1090-1010 and 630-515 cm , which are assigned to Oas(NSO), Os(NSO) and <5(NSO), respectively. X-ray structural data for several M-NSO complexes reveal N-S and S-O bond lengths of ca. 1.46 0.04 A indicative of double bond character in both of these bonds. 

A number of transition-metal complexes of RNSO ligands have been structurally characterized. Three bonding modes, r(A,5), o-(5)-trigonal and o (5 )-pyramidal, have been observed (Scheme 9.1). Side-on (N,S) coordination is favoured by electron-rich (et or j °) metal centers, while the ff(S)-trigonal mode is preferred for less electron-rich metal centres (or those with competitive strong r-acid co-ligands). As expected ti (N,S)... 

The solvated sulfenamides [Li2( BuNSC6H4Me-4)2(THF)n] (n = 2,4) have dimeric structures with a central Li2N2 ring. The coordination mode is determined by the extent of solvation of the Li" ions monosolvation allows for rj -N,S coordination whereas disolvation restricts the coordination mode to // -M Variable temperature NMR studies indicated that a dynamic exchange between these two structural types occurs in THF solution (Scheme 10.10). The dihapto coordination mode is observed exclusively in transition-metal complexes and the... 

Click Coached Problems for a self-study module on electronic structure in transition metal complexes. 

A new look at structure and bonding in transition metal complexes. J. K. Burdett, Adv. Inorg. Chem. Radiochem., 1978, 21,113-146 (73). 

Magnetic resonance methods in the study of the electronic structure of transition metal complexes. 

Structural chemistrv of transition metal complexes of oximes. A. Chakravorty, Coord. Chem. Rev., 1974,13,1-46 (298). 

Structural and conductivity aspects of one-dimensional transition metal complexes. J. R. Ferraro and K. B. Mertes, Coord. Chem. Rev., 1981,36,357-371 (29). 

The spectra and structure of transition metal complexes with tetradentate macrocyclic ligands. K. B. Yatsimirskii and Y. D. Lampeka, Russ. Chem. Rev. (Engl. Transl), 1980, 49,1003-1020 (191). 

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