Page 48 - Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005)
P. 48

IR-2.14                                                       G R A M  M  A R





                       Example:
                                                            1
                           6.
                                                        4  O    2
                                                      HSb      SbH
                                                           O
                                                            3
                                                  1,3,2,4-dioxadistibetane
                       (e) In the Hantzsch–Widman nomenclature (Section IR-6.2.4.3), to denote  i ndicated
                       hydrogen.

                       Example:

                           7.                                 H
                                                             3  Ge
                                                          HSi   SiH 2
                                                            2    1
                                                 1H-1,2,3-disilagermirene

                       (f) In substitutive nomenclature, to specify the positions of substituent g roups.

                       Example:

                           8.
                                  1   2   3   4    5
                               HOSiH 2 SiH 2 SiH 2 SiHClSiH 2 Cl
                              4,5-dichloropentasilan-1-ol

                       (g) In substitutive nomenclature, to specify the skeletal atom at which an additive or
                       substractive operation is performed.

                       Example:
                              *     *
                           9. HNNH and  HNNH              hydrazine-1,2-diyl
                       (h) In von Baeyer names, to indicate the topology of a  p olycyclic ring system.

                       Example:

                          10.                          H 2    H 2
                                                       Si  H  Si
                                                        10  Si  2
                                                   H 2 Si 9      3  SiH 2
                                                             1
                                                      8      6   4
                                                   H 2 Si  7  Si  5  SiH 2
                                                        Si  H  Si
                                                        H 2    H 2
                                                  bicyclo[4.4.0]decasilane

                       (i) In polynuclear coordination compounds, for numbering the central atoms (see Section
                       IR-9.2.5).


                       Example:
                          11.
                                     1  2                            5   4
                               ½ðOCÞ 5 ReCoðCOÞ 4      nonacarbonyl-1k C,2k C-rheniumcobalt(Re—Co)

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