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Isostructural chemical compounds have similar chemical structures. Isomorphous when used in the relation to crystal structures is essentially synonymous.〔 p 182〕 The IUCR definition〔IUCR Online Dictionary of CRYSTALLOGRAPHY, "Isostructural crystals", ()〕 used by crystallographers is:- Examples include: *I-Gold(I) bromide is isostructural with gold(I) chloride *Borazine is isostructural with benzene *Indium(I) bromide is isostructural with β-thallium(I) iodide and has a distorted rock salt structure. Many minerals are isostructural when they differ only in the nature of a cation. Compounds which are isoelectronic usually have similar chemical structures. For example, methane, CH4, and the ammonium ion, NH4+, are isoelectric and are isostructural as both have a tetrahedral structure. The C-H and N-H bond lengths are different and crystal structures are completely different because the ammonium ion only occurs in salts. == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「isostructural」の詳細全文を読む スポンサード リンク
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