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Fivefold rotational axes

The most characteristic feature of point group 4 is the presence of six fivefold rotation axes, ten threefold rotation axes, and 15 twofold rotation axes. A a plane lies perpendicular to each C2 axis. Group 4 has 120 symmetry operations... [Pg.176]

Fivefold symmetry appears frequently among primitive organisms. Examples are shown in Figure 2-19. They have fivefold rotation axes and intersecting (vertical) symmetry planes as well. The symmetry class of the starfish is 5 m. This starfish consists of ten congruent parts, with each pair related by a symmetry plane. The whole starfish is unchanged either by 360°/5 = 12° rotation around the rotation axis, or by mirror reflection through the symmetry planes which intersect at... [Pg.38]

In. The most characteristic feature of this point group is the presence of six fivefold rotation axes. Examples ... [Pg.115]

Fig. X8 Molecules containing fivefold rotational axes (a) eclipsed ferrocene, side and lop view (b) staggered ferrocene, side and lop view. Each molecule has five C- axes, only one of which is shown. Upon rotation about the Cj axis, the atoms interchange I I, etc. Fig. X8 Molecules containing fivefold rotational axes (a) eclipsed ferrocene, side and lop view (b) staggered ferrocene, side and lop view. Each molecule has five C- axes, only one of which is shown. Upon rotation about the Cj axis, the atoms interchange I I, etc.
See other pages where Fivefold rotational axes is mentioned: [Pg.141]    [Pg.106]    [Pg.102]    [Pg.113]    [Pg.114]   
See also in sourсe #XX -- [ Pg.113 , Pg.114 ]



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