Number of generating elements in space group of a crystalстатья
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Дата последнего поиска статьи во внешних источниках: 26 февраля 2018 г.
Аннотация:The numerical parameter Q (the critical coordination number), which characterizes the smallest number of contacts sufficient for the formation of this structure is constructed based on the power |g| of the minimal set of generating elements |g| of space group G. The calculation of |g| for space groups with the lowest isometric systems was carried out according to the developed algorithm. The structural classes of crystals corresponding to Q = 1 were derived. The selection of relevant structures in the Cambridge database (CSD) was carried out and typical representatives were considered.