Internal strain energy

Moreover Figure 3 shows the graph of the potential energy of the molecule where E2 and E4 representing structure optimization finished in a local minimum and E6 a global minimum found (internal strain of the molecule minimized). 

Metal complexing can subject a ligand to severe internal strain or, alternatively, it can relieve strain or it can freeze the conformation of the coordinated ligand. These modifications often lead to enhanced reactivity by reducing the energy difference between ground and transition state. The subjection of the cyano group to strain when 2-cyanophenanthroline is coordinated to a metal ion, and its resultant accelerated hydrolysis, has been referred to previously (Sec. 

Annealing in metals can first lead to stress relaxation in which stored internal strain energy due to plastic deformation is relieved by thermally activated dislocation motion (see Figure 5.18). Because there is enhanced atomic mobility at elevated temperatures, dislocation density can decrease during the recovery process. At still higher temperatures, a process known as recrystallization is possible, in which a new set of... 

The refined electron crystallography structure (ljff - 3.5 A) [21] lacks numerous high-energy features found in the unrefined coordinates (ltub - 3.7 A) [6], but the process of refinement against low resolution data inherently produced a model with some internal strain as shown by the increased scatter within the most favored region... 

In systems with significant Me-S lattice misfit, the 2D Meads overlayers and/or 2D Me-S surface alloys formed in the UPD range have a different structure in comparison with the 3D Me bulk phase, and contain considerable internal strain (cf. Section 3.4). Thus, the nucleation and growth kinetics in the OPD range will be strongly influenced by the internal strain energy of 2D Me UPD phases. 

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