https://www.foodbk.com/index.php?title=%E4%BA%8C%E6%B0%B4%E5%90%88%E5%9B%9B%E4%B9%99%E9%85%B8%E6%A0%B9%E5%90%88%E4%BA%8C%E9%93%AC%EF%BC%88%E2%85%A1%EF%BC%89&action=history 本站上本页的修订历史 zh-cn MediaWiki 1.9.3 Mon, 18 May 2026 07:46:01 GMT https://www.foodbk.com/index.php?title=%E4%BA%8C%E6%B0%B4%E5%90%88%E5%9B%9B%E4%B9%99%E9%85%B8%E6%A0%B9%E5%90%88%E4%BA%8C%E9%93%AC%EF%BC%88%E2%85%A1%EF%BC%89&diff=7842&oldid=prev <p></p> <p><b>新建页面</b></p><div>[中文]: 二水合四乙酸根合二铬（Ⅱ） <br /> <br /> [英文]: dichromium(Ⅱ)tetraacetate-diaqua <br /> <br /> [说明]: Cr2(O2CCH3)4·(H2O)2 深红色晶体，真空中加热转变为棕色无水物，后者倾向于通过氧桥聚合成无限长链。反磁性。含金属-金属四重键（20607),包括一个σ键、两个π键和一个δ键。Cr—Cr距离2.36埃。配体为双齿的桥式乙酸根。由乙酸钠和二氯化铬溶液反应制得。<br /> [[category:e]]</div> Fri, 26 Jan 2007 09:35:38 GMT 梦迪 https://www.foodbk.com/wiki/Talk:%E4%BA%8C%E6%B0%B4%E5%90%88%E5%9B%9B%E4%B9%99%E9%85%B8%E6%A0%B9%E5%90%88%E4%BA%8C%E9%93%AC%EF%BC%88%E2%85%A1%EF%BC%89