Stereochemistry of Complex Halides of the Transition Metals

The aim of this lecture i& to provide a survey of the stereochemistry of the tetrahalogeno complexes of the metal ions of the first transition series. In particular we wish to consider which non-bonding electron configurations favour the formation of regular tetrahedral complexes but we pass from this to examine the shape of four-coordinate complexes with other non-bonding -electron arrangements. Recent experimental studies dealing with the preparation of various metal complexes having d 2, d 5, d 6 and d 8 non-bonding configurations will be summarised and the results of the investigations of the structures of these complexes are discussed

Stereochemistry of Complex Halides of the Transition Metals

The aim of this lecture i& to provide a survey of the stereochemistry of the tetrahalogeno complexes of the metal ions of the first transition series. In particular we wish to consider which non-bonding electron configurations favour the formation of regular tetrahedral complexes but we pass from this to examine the shape of four-coordinate complexes with other non-bonding -electron arrangements. Recent experimental studies dealing with the preparation of various metal complexes having d 2, d 5, d 6 and d 8 non-bonding configurations will be summarised and the results of the investigations of the structures of these complexes are discussed

Robot sex and consent:Is consent to sex between a robot and a human conceivable, possible, and desirable?

The development of highly humanoid sex robots is on the technological horizon. If sex robots are integrated into the legal community as “electronic persons”, the issue of sexual consent arises, which is essential for legally and morally permissible sexual relations between human persons. This paper explores whether it is conceivable, possible, and desirable that humanoid robots should be designed such that they are capable of consenting to sex. We consider reasons for giving both “no” and “yes” answers to these three questions by examining the concept of consent in general, as well as critiques of its adequacy in the domain of sexual ethics; the relationship between consent and free will; and the relationship between consent and consciousness. Additionally we canvass the most influential existing literature on the ethics of sex with robots.</p

Unified Behavior of Alkali Core-Level Binding-Energy Shifts Induced by sp Metals

Thin overlayers of Na, K, Rb, and Cs on different sp-metal substrates have been investigated using photoelectron spectroscopy. The alkali core levels show clearly resolved binding-energy shifts between the surface layer, the intermediate layer(s), and the interface layer. The magnitude of these shifts depends on sp metal and on alkali metal. The layer-resolved core-level binding-energy shifts are well reproduced by models based on a thermodynamical description. For three-layer alkali films the core-level binding energy of the intermediate layer is found to exhibit a small but significant shift between different sp-metal substrates. A simple relationship between the core-level binding-energy shift for the interface layer and the difference in rs value between the sp substrate and the adsorbate is shown to exist

Compuestos de fosfito de trialilo con iones metálicos de configuración d8

All the attempts to prepare complexes of triallyI phosphite with Pt (II) were unsuccessful. However, the reactions of this ligand with Rh (1) and Pd (II) ,take place and synthesis condi.tions are described. The composition and nature of the insulated complexes was elucid·ated by elemental analysis, molecular weight measurements and infrared and nuclear magnetic resonanse data. The triallylphosphite reaction with RhCI goes to the synthesis of chloro (triallylphosphite) rhodium (1), with all the olefin groups coordinated to the rhodium, but with Rh el (PPh3) the trans-chlorocarbonYI bis (Triphenylphosphine) rhodium (1) is insulated. On the other hand, equivalen,t amounts of (CfiH5CN)2PdCI and ligand react ,to g:ve bisallyldi-f L--chloropalladium (Il).Láboratorios William Ramsay y Ralph Forster del University College London (Inglaterra)

Soft x-ray photoemission studies of Hf oxidation

Charging of oxide films under x rays is an important issue that must be taken into consideration for determination of core-level binding energies as well as valence band offsets. Measurements are taken as a function of time, thickness, and annealing condition. Photoemission results show the presence of metallic Hf with the 4f7/2 binding energy of 18.16 eV, and at least one clear suboxide peak