Figure C3. Six segments of arrays of packed circles. E6. Think of the worried Professor in Figure C9 as a big sad molecule. Identify the lattice on which he has crystallized by takıng a point on his face (the mid-point of his specs, for instance) as a lattice point and linking it to other points wth identical surroundings. What is the professor's lattice ? What is the point group symmetry of his lattice ? What is the symmetry of his structure (that of the lattice plus basis)?

Figure C3. Six segments of arrays of packed circles. E6. Think of the worried Professor in Figure C9 as a big sad molecule. Identify the lattice on which he has crystallized by takıng a point on his face (the mid-point of his specs, for instance) as a lattice point and linking it to other points wth identical surroundings. What is the professor's lattice ? What is the point group symmetry of his lattice ? What is the symmetry of his structure (that of the lattice plus basis)?

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter21: Structure And Bonding In Solids

Section: Chapter Questions

Problem 52AP

See similar textbooks

Similar questions

The unit cells of SbCI3 are orthorhombic with dimensions a= 812 pm, b = 947 pm, and c = 637 pm. Calculate the spacing of (a) the {321} planes, {b} the {642} planes.
Create an elaborate analysis about the description of “Face Centered Cubic Unit Cell”, and indicate some fun facts about it.
Sketch the Miller plane in a unit cell (0-1-3).
How many lattice paths are there from the point (−3, 10) to the point (5, −2) if the pathwaymust only go right and up?
Draw an orthorhombic unit cell and mark on it the (100), (010), (001), (011), (101), and (110) planes.
An orthorhombic unit cell has dimensions a = 769 pm, b = 891 pm, and c = 690 pm. Calculate the spacing, d, of the {312} planes.
Draw a triclinic unit cell and mark on it the (100), (010), (001), (011), (101), and (110) planes.
State the Miller indices of the planes that intersect the crystallographic axes at the distances (2a, 3b, 2c) and (2a, 2b, ∞c).
Construct a (011) within a unit cell.
Calculate the separations of the planes {123} and {236} in an orthorhombic crystal in which the unit cell has sides of lengths 784, 633, and 454 pm.
If the density of solid chromium is 7.15 g/cm37.15 g/cm3, what is the packing efficiency of CrCr if it adopts a body‑centered cubic unit cell? The molar mass of CrCr is 51.996 g/mol51.996 g/mol . packing efficiency: = %?
The surface energy of a single crystal depends on crystallographic orientation. Does this surface energy increase or decrease with an increase in planar density? Why?