PARENT HYDRIDE NAMES AND SUBSTITUTIVE NOMENCLATURE

1 Mononuclear parent hydrides with standard and non-standard bonding numbers IR-6.2.2 Homopolynuclear parent hydrides (other than boron and carbon hydrides) 

1 Homonuclear acyclic parent hydrides in which all atoms have their standard bonding number 

2 Homonuclear acyclic parent hydrides with elements exhibiting non-standard bonding numbers 

3 Unsaturated homonuclear acyclic hydrides IR-6.2.2.4 Homonuclear monocyclic parent hydrides IR-6.2.2.5 Homonuclear polycyclic parent hydrides IR-6.2.3 Boron hydrides 

1 Stoichiometric names IR-6.2.3.2 Structural descriptor names IR-6.2.3.3 Systematic numbering of polyhedral clusters IR-6.2.3.4 Systematic naming giving hydrogen atom distribution IR-6.2.4 Heteronuclear parent hydrides 

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Second, boron chemistry, particularly that of polynuclear compounds, has also seen extensive development. Again, therefore, only the basics of the nomenclature of boron-containing compounds are covered here (cf. the separate, more comprehensive but dated, chapter on boron nomenclature, 1-11, in Red Book I), within Chapter IR-6 (Parent Hydride Names and Substitutive Nomenclature), while more advanced aspects are left for elaboration in a future project. 

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