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Manual of Style for chemistry articles

Scope The scope of this style guide should include:

  • monoatomic ions (chloride, bromide; oxide, sulfide)
  • polyatomic ions (nitrates, perchlorates, triflates, tetrafluoroborates)
  • functional groups (alcohols, aldehydes, acids, nitriles)
  • "backbone" moieties, both organic and inorganic
    • steroids, aldohexoses, terpenes
    • metal oxo compounds, metal carbonyl compounds, metal clusters

The lede of the article should include an introduction of the class, notable characteristics, what it is used for (e.g. drugs, explosives, pesticides, fuels). Remember to note general, rather than specific points. Specific points can be given more discussion in the article body.

Contents

[edit] Structure and bonding

Detailed information about the bond lengths and angles typical of the functional group, energetics of conformational and rotational barriers, theoretical aspects of bonding such as hybridization and molecular orbitals, bond dissociation energies, stereochemical and conformational properties.

Structural classes should be discussed: aryl vs alkyl, chirality, cyclic vs acyclic.

[edit] Nomenclature

Describe systematic (IUPAC) nomenclature for naming of compounds; mention historical or other alternate naming conventions if necessary. Compound classes with specific conventions include steroids,[1] sugars. Conventions for 2-D structures should also be discussed, such as the Haworth and Fisher projections for sugars. Remember, the article is about chemistry, not naming, so this section should not be long.

[edit] Properties

Acidity/basicity, boiling points vs other classes of compounds, e.g. boiling point/melting point trends for amines vs alcohols. solubility trends

[edit] Characterization

Features that allow this specific class of compounds to be identified:

  • usual ranges for NMR chemical shifts, IR bands.
  • classic qualitative "wet" analyses, flame and other kinds of tests.

[edit] Occurrence and (possibly) applications

It seems logical to tell the reader where the compounds might be encountered before discussing applications. Often the two topics are intertwined. The natural occurrence and essential biochemistry of certain classes of compounds should be summarized. Examples include alkanes (e.g. petroleum distillates), esters (fruit flavors), fatty acids, terpenes, steroids (biological products), and the role of amines in biology.

Many simple compounds exist as important minerals (minor minerals should not be highlighted in the overview article - almost all salts are observable as secondary minerals). Numerous molecules and ions occur in the interstellar medium. The interaction of the compounds with the environment should be mentioned, including aspect of pollution and biodegradation.

General applications should be briefly described, e.g. alkenes for making polymers, lower alcohols as solvents, hydroxides as bases.

[edit] Preparation

Describe the main routes to this class. In the early development of an article, lists are inevitable. For more mature articles, the description of reactions should be organized by themes, e.g., oxidation, reduction, hydrolysis. Chemists remember reactions by their names, but many readers do not. Thus, named reactions should be secondary to the theme or logic of the reaction. The sequence of presentation should roughly mirror their significance. Specific illustrative examples can usefully be drawn from Organic or Inorganic Syntheses.

[edit] Reactions

Factors affecting reactivity should be discussed. For example, discussion on Friedel-Crafts reactions on aromatic compounds, with mention of inductive and mesomeric effects is appropriate. A survey of the possible functional group interconversions is appropriate here. Try to avoid lists: group them by similarity, with an appropriate theme as the header.

[edit] History

If notable, the first discovery or the first major use of this class of compounds can be discussed. Obviously, this section need not apply for many classes.

[edit] Safety

WP shouldn't be alarmist. A general mention of safety issues is in order, e.g. azides tend to be reactive/explosive. Reliable sources should be used as references! If there is nothing to be said, nothing should be said!

[edit] References

  1. ^ G. P. Moss (1989). "Nomenclature of Steroids (Recommendations 1989)". Pure & Appl. Chem. 61 (10): 1783-1822. http://www.iupac.org/publications/pac/1989/pdf/6110x1783.pdf. 



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