Structural behaviour

Experimentally it is found that the Fe-Co and Fe-Ni alloys undergo a structural transformation from the bee structure to the hep or fee structures, respectively, with increasing number of valence electrons, while the Fe-Cu alloy is unstable at most concentrations. In addition to this some of the alloy phases show a partial ordering of the constituting atoms. One may wonder if this structural behaviour can be simply understood from a filling of essentially common bands or if the alloying implies a modification of the electronic structure and as a consequence also the structural stability. In this paper we try to answer this question and reproduce the observed structural behaviour by means of accurate alloy theory and total energy calcul ions. 

The structural behaviour of sulfur at metal surfaces has proven to be very rich. Large-scale reconstruction has been proposed in many cases and models for... 

To study the structural behaviour of MAPs, an adequate membrane model (see Fig. 5) is essential. Simple organic solvent systems, such as DMSO, MeOH/H20 or TFE/PLO mixtures, present a similar dielectric environment as a membrane on... 

Perrin, D. D., Organic Complexing Reagents Structural Behaviour and Application to Inorganic Analysis, Knieger, 1979. 

Brown, G. (1984). Crystal structure of clay minerals and related phyllosilicates. In Clay Minerals Their Structure, Behaviour and Uses, ed. Fowden, L., Barrer, R.M. and Tinker, P.B., Royal Society, London, pp. 1 20. 

Fripiat, J. J. Letellier, M. Levitz, P. "Clay Minerals Their Structure, Behaviour and Use" The Royal Society London 1984, 67-79. 

Doner, D.R., and Novak, R. C. (1969). Structural behaviour of laminates graphite filament composites. In Proc. 24th Annual Tech. Conf. Reinforced Plast. Composites, SPL Paper 2-D. 

The relationship between the structure of a series of peptides derived from the adrenocorticotropic hormone ACTH, and the behavioural activity in an active avoidance behaviour test, has been studied over the past 10-20 years. The results obtained were quite different from those in which endocrine activity relationships were studied. From the outcome of a quantitative study on the structure--behavioural activity of the ACTH-related peptides, suggestions about the spatial interactions at the receptor site were made. This receptor-bound conformation differed from those suggested by solution experiments or found in crystal structures. 

In this paper we will illustrate the line of research that was followed in the structure-behavioural activity work and that resulted... 

Strategy and results of the structure-behavioural activity studies... 

Stable group 14 heterole anionic or dianionic species are no longer curiosities. Recent work has focused on the structural behaviour, spectroscopic features and bonding patterns of heterole anionic or dianionic species so that we can use the data obtained so far as guidelines for further work. As far as the reactivity of the latter derivatives is concerned, much effort will be directed to the structure of the heterolyl salts and its dependence on the counterion. 

Camiolo, S., Gale, P. A., Hursthouse, M. B., Light, M. E. (2003) Nitrophenyl derivatives of pyrrole 2,5-diamides structural behaviour, anion binding and colour change signalled deprotonation, Org. Biomol. Chem. 1. 4, 741-744. 

XRD spectra of composites sintered at different temperatures are obtained by using a defractometer. Samples sintered at a particular temperature indicate the structural behaviour as either amorphous or crystalline in nature. Such indication is of immense help to researchers for improving the properties of the resultant materials by optimizing the rate of sintering temperature. 

The evolution of the structural behaviour of (NH3)K3 b Cgg with increasing x raises many questions. Along the series there is a certain critical composition, xc=2, for which it becomes favourable to adopt a parallel alignment of the Rb(K)+-NH3 pairs. Above xc, contraction instead of expansion of the stacking... 

Lopez, C., Lesieur, P., Keller, G., Ollivon, M. 2001a. Crystallization in emulsion application to thermal and structural behaviour of milk fat. In, Crystallization and Solidification Properties of Lipids (N. Widlak, R. Hartel, S. Narine, eds.), pp. 190-199, AOCS Press, Champaign, IL. 

---