Physical Chemistry of Supported Clusters

摘要: Scientists have always tried to classify and systematise their observations in order extract trends or even propose simple models for the understanding of results with aim predicting properties new materials. As early as 19th century this strategy led discovery periodicity oxide formation different elements by D.I. Mendelejev [1] shortly afterwards he presented first Periodic Table his presentation “On relation atomic weights elements” at Russian Chemical Society 1869 [2]. Today we know that laws quantum mechanics are responsible beautiful our universe is used predict chemical physical elements. In a compound atoms try acquire closed shell electronic structure reason high reactivity alkalines halides inertness rare gases. it possible construct single element, e.g., sodium, because an element can form clusters particles pronounced periodicities function size, shape form. Sodium were produced groups Schumacher [3] Knight [4] eighties, see Chap. 1. They discovered striking discontinuities mass spectra magic numbers (of Na per cluster) 8, 20, 34, 40 achieved fundamental these abundance within jellium model [4, 5, 6, 7], well known nuclear physicists.