Diamond like compound

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Compounds which

  • (1) fall under the class of gemstone like compounds and
  • (2) have a crystal structure similar to diamond (cubic and hexagonal)

Sometimes "diamondoid" refers to just (1). In this wiki though both will be required to be true (starting 2021-06).

Note that mixes between cubic and hexagonal are possible (along one spacial dimension) by choice of "stacking order". Mechanosynthesizing such cubic hexagonal switches in more than one dimension leads to at least controlled atomically precise line like one dimensional faults.

Example compounds

Diamond of course

Compounds with partial (e.g. 50%) substitution of carbon

Compounds made from other elements of the same group in the periodic table

III-IV semiconductors

Other

  • Checkerboard pattern neo polymorphs between group IV elements and III-IV semiconductors.

Soft:

  • ZnS – Zinc sulfides [1]
  • ZnS – cubic – sphalerite – Mohs 3.5-4.0 – nα = 2.369 – (40% iron substitution possible via thermodynamic means)
  • ZnS – hexagonal – wurzite – Mohs 3.5-4.0
  • – (ZnS mátraite – trigonal – is not of diamond like structure – Mohs 3.5-4.0 – 3D structure of unit cell??)

Diamondoid molecular building blocks

These two have been proposed as bigger building blocks that may be easier to handle in a direct path approach. See: Lattice scaled stiffness.

  • The integrated nitrogen atoms can form coordinate bonds to integrated boron atoms.
  • the tetrahedral geometry (equal to an sp3 hybridized carbon – See: The basics of atoms) stays preserved.

(wiki-TODO: Find that proposal)

Related

External links