defibrillator
发表于 2025-3-28 17:22:26
http://reply.papertrans.cn/87/8681/868070/868070_41.png
完成
发表于 2025-3-28 19:51:03
Symmetry Groups and Their Representations,oups for molecules, and space groups for crystals. All these groups are subgroups of the same continuous group: the Euclidean group. In the following sections we give, briefly, the most important information about these groups. Special attention is paid to site symmetry of physical systems related t
巧思
发表于 2025-3-29 01:20:13
Application of Induced Representations in the Electron Theory of Molecules and Crystals, crystalline orbitals in complex crystals, despite the many atoms in a unit cell, and also to draw some qualitative conclusions about the character of chemical bonding, provided the symmetry properties of the electron states in the upper valence bands are known.
ALLEY
发表于 2025-3-29 06:56:50
http://reply.papertrans.cn/87/8681/868070/868070_44.png
inquisitive
发表于 2025-3-29 08:59:15
Application of Induced Representations of Space Group to Second Order Phase Transitions,ions and have been systematically applied to a large number of systems . The Landau theory of continuous phase transitions is the basis of this symmetry analysis . Symmetry rules used in the Landau theory are briefly reviewed in the next section.
Parley
发表于 2025-3-29 12:19:40
http://reply.papertrans.cn/87/8681/868070/868070_46.png
legislate
发表于 2025-3-29 17:23:12
,Site Symmetry in Permutation — Inversion Symmetry Groups of Nonrigid Crystals,ions, inversion motions, or large amplitude vibrations. There are a great number of such crystals . For example, molecules in plastic crystals show free or hindered rotations. These rotations can be observed, for instance, in NMR spectra: one observes line narrowing when the molecules start to