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names of charged and neutral ligands are intermingled as dictated by alphabetization
b) When two or more same ligands are present, their number is indicated by a prefix (di-, tri-, tetra-, penta-, hexa-, etc.). However, when the ligand name itself contains one of these prefixes (as in ethylenediamine), then the multiplicative prefix is bis-, tris-, tetrakis-, pentakis-, hexakis-, etc. e.g.
在化学式前加一前缀,以指明配体在空间的排列特点 (异构体,手性等) cis-, trans-, mer-, fac- 分别表示顺式、反式、经式、 面式结构,
如 cis-[CoCl2(NH3)4]+, d和l表示手性, l(左旋,levorotatory, “-”, d(右旋, dextorotatory,“+”). 如d-[Co(en)3]3+
Ligand abbreviations may be used in place of complete formulas (e.g. en for H2NC2H4NH2).
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The formula for a metal-ligand entity (complex) is enclosed in brackets whether it is charged or uncharged [CoCl3(NH3)3]. When a compound consists of charged complex ions, the cation is always listed first, e.g. K2[Ni(CN)4], [CoCl2(NH3)4]Cl.