Chemical formula: Hg 2 N(OH)・2H 2 O. When yellow mercury oxide is reacted with concentrated aqueous ammonia without carbon dioxide in the dark for 14 days, it is obtained as a bright yellow precipitate. Specific gravity: 4.08. Cubic crystal system. a = 9.58 Å. In crystals, it has a structure similar to quartz, with the Si in quartz replaced by N and the O by Hg, as shown below. Four mercury atoms are coordinated around N in a regular tetrahedron, and the N-Hg-N is a straight line. OH - and H 2 O penetrate into this network structure. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
化学式Hg2N(OH)・2H2O。黄色酸化水銀を二酸化炭素を含まない濃アンモニア水と暗所で14日間反応させると鮮黄色沈殿として得られる。比重4.08。立方晶系。a=9.58Å。結晶中では石英に似た構造をもち,石英のSiをNで,またOをHgでおきかえた,次に示すような構造をしている。Nのまわりに4個の水銀原子が正四面体に配位しており,またN-Hg-Nは直線である。OH-やH2Oはこの網目構造の中に入りこんでいる。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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