Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Mirror plane dihedral

Figure 2.17. Projection diagram for the point group D3d = D3(S)C, (see eq. (2.3.9)). For example, JC2b = Figure 2.17. Projection diagram for the point group D3d = D3(S)C, (see eq. (2.3.9)). For example, JC2b = <xb, and this mirror plane normal to b bisects the angle between the C2 axes C2x and C2c so that it is a dihedral plane. Similarly, ax and ac are dihedral planes.
D2d A molecule is D2d if it has a C2 axis and two perpendicular C2 axes (as for D2 above), plus two dihedral mirror planes these are mirror planes that bisect two C2 axes (in general, that bisect the C2 axes perpendicular to the principal axis). Example allene (propadiene). Staggered ethane is D3d (it has D3 symmetry elements plus three dihedral mirror planes. Dnd symmetry can be hard to spot. [Pg.38]

One n-Fold Principal Rotation Axis C , n C2 Axes Perpendicular to Cn, n Dihedral Mirror Planes G4... [Pg.394]

Use italic type for the letters in symmetry operations and structural point groups. The symbols (Schoenflies) are as follows E, identity C, cyclic D, dihedral T, tetrahedral O, octahedral I, icosahedral S, rotation-reflection and a, mirror plane. Align subscripts and superscripts. [Pg.269]

E = identity operation, C = n-fold proper rotation axis, S = n-fold improper rotation axis, <7h = horizontal mirror plane, <7v = vertical minor plane, <7d = dihedral minor plane, i = inversion center. [Pg.20]

S4 and 8 Sg impiopcr mtatitni axes 3 O), horizontal mirror planes 6 0 dihedral mirror planes... [Pg.50]

FIGURE 4-12 Vertical or Dihedral Mirror Planes or S2 Axes. [Pg.88]

Reflection a of all points in a mirror plane a (ctv - a mirror plane containing the principal axis, - a mirror plane normal to the principal axis, - a. dihedral mirror plane containing the principal axis and bisecting the angles between... [Pg.52]

Dihedral mirror planes (o These mirror planes exist if you can create a mirror plane between two C2 rotation axes. XeF in Figure 7-3 has a between the two C2 axes (one C2 going vertically through Fj-Fj and the other going through F2-F. ... [Pg.104]

There is no such thing as a If you know your molecule is D (C2 to the principal rotation axis), and you find a vertical mirror plane, look closer at your plane — it s truly dihedral (bisecting two C. ... [Pg.109]

The different types of mirror plane reflections in the benzene molecule (a) horizontal mirror plane, (b) vertical mirror planes, and (c) dihedral mirror planes. [Pg.183]


See other pages where Mirror plane dihedral is mentioned: [Pg.14]    [Pg.162]    [Pg.40]    [Pg.577]    [Pg.205]    [Pg.10]    [Pg.9]    [Pg.13]    [Pg.41]    [Pg.186]    [Pg.54]    [Pg.391]    [Pg.40]    [Pg.577]    [Pg.40]    [Pg.566]    [Pg.80]    [Pg.222]    [Pg.56]    [Pg.57]    [Pg.36]    [Pg.226]    [Pg.226]    [Pg.270]    [Pg.61]    [Pg.245]    [Pg.322]    [Pg.733]    [Pg.183]    [Pg.193]    [Pg.194]    [Pg.343]    [Pg.353]   
See also in sourсe #XX -- [ Pg.87 , Pg.88 ]

See also in sourсe #XX -- [ Pg.12 , Pg.23 ]




SEARCH



Dihedral planes

Dihedrals

Mirror plane

Mirrored

Mirroring

Mirrors

© 2024 chempedia.info