摘要:

Extensive theoretical work in the early fifties led to detailed predictions concerning the behavior of one-dimensional metals. More than ten years later the first real systems—linear chain metal complexes—were discovered and many of the predicted pecularities of one-dimensional metals were verified experimentally. Although the initial hope of preparing new, important, and technically useful materials (especially high-temperature superconductors) has not been fulfilled, the results obtained with inorganic compounds triggered the explosive development of organic metals.

ISSN:0260-3594    

DOI:10.1080/02603598108078082

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

Simple molecular orbital ideas are used to generate energy profiles for electron transfer reactions between transition metal ions in solution. The very different kinetic behavior observed experimentally for Cr(II)/Cr(III), Fe(II)/Fe(III), and Cr(II)/Ru(III) processes is readily shown to be associated with the electronic configurations of the reactants and those of transition states or intermediates, and their influence on structural stability.

ISSN:0260-3594    

DOI:10.1080/02603598108078083

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

The singlet triplet splitting resulting from exchange coupling in three series of ligand-bridged copper(II) complexes is primarily controlled by the angle at the bridging ligand atom and by the length of the superexchange pathway. Magnetic and structural data exist for chloro-, bromo-, and sulfur-bridged complexes. The smooth correlation between the exchange coupling constantJand the quotient of structural parametersr0(where is the angle at the bridging ligand atom andr0, is the long out-of-plane bond distance) may be explained in terms of extended Hückel molecular-orbital theory, but the theory does not permit an explanation why only complexes which obey the simple correlation exist. It is predicted that a family of such structurally and magnetically related complexes should exist.

ISSN:0260-3594    

DOI:10.1080/02603598108078084

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

The rapidly increasing ionization energies of monatomic entities with charges increasing from–1 to + Z are confronted with the conditions for stability of oxidation states. The reasons for adding 4.5 eV to standardE0values, the evidence from photoelectron spectra, the hydration energies of gaseous ions, optical electronegativities, and the Kossel isoelectronic series are discussed.

ISSN:0260-3594    

DOI:10.1080/02603598108078085

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue.

ISSN:0260-3594    

DOI:10.1080/02603598108078081

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor