{"id":224077,"date":"2021-07-07T06:24:49","date_gmt":"2021-07-06T22:24:49","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=224077"},"modified":"2021-07-06T21:25:06","modified_gmt":"2021-07-06T13:25:06","slug":"nature-chemistry%e7%a1%85%e8%a1%a8%e9%9d%a2%e6%9c%89%e5%ba%8f%e5%8d%95%e5%88%86%e5%ad%90%e5%b1%82%e7%9a%84%e5%8f%af%e6%8e%a7%e7%94%9f%e9%95%bf%e7%a0%94%e7%a9%b6","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=224077","title":{"rendered":"Nature Chemistry:\u7845\u8868\u9762\u6709\u5e8f\u5355\u5206\u5b50\u5c42\u7684\u53ef\u63a7\u751f\u957f\u7814\u7a76"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/b><\/strong><\/p>\n

\u81ea\u9996\u6b21\u88ab\u6210\u529f\u5206\u79bb\u4ee5\u6765\u7684\u4e09\u4e2a\u5341\u5e74\u4e2d\uff0cN-\u6742\u73af\u78b3\u70ef\uff08NHCs\uff09\u4f5c\u4e3a\u4e00\u79cd\u5177\u6709\u53d1\u5c55\u524d\u9014\u7684\u8868\u9762\u529f\u80fd\u5316\u6539\u6027\u5242\u548c\u951a\u5b9a\u5242\uff0c\u4e0e\u57fa\u4e8e\u786b\u9187\u7684\u4f53\u7cfb\u76f8\u6bd4\u5177\u6709\u4e00\u4e9b\u4f18\u52bf\u3002\u7531\u4e8e\u5176\u5f3a\u5927\u7684\u7ed3\u5408\u4eb2\u548c\u529b\u548c\u9ad8\u7684\u7ed9\u7535\u5b50\u80fd\u529b\uff0cNHCs\u53ef\u4ee5\u663e\u8457\u6539\u53d8\u5b83\u4eec\u6240\u7ed3\u5408\u7684\u8868\u9762\u7684\u7279\u6027\u3002\u8fc4\u4eca\u4e3a\u6b62\uff0c\u5728\u9664\u8d35\u91d1\u5c5e\u4ee5\u5916\u7684\u8868\u9762\u5438\u9644NHCs\u5df2\u7ecf\u5f88\u5c11\u88ab\u7814\u7a76\uff0c\u9ad8\u5ea6\u6709\u5e8f\u7684NHCs\u5355\u5206\u5b50\u5c42\u4ec5\u9650\u4e8e\u91d1\u5c5e\u8868\u9762\u3002\u7136\u800c\uff0c\u968f\u7740\u534a\u5bfc\u4f53\u4ea7\u4e1a\u7684\u53d1\u5c55\uff0c\u7845\u4ecd\u7136\u662f\u534a\u5bfc\u4f53\u5668\u4ef6\u4e2d\u7684\u9996\u9009\u5143\u7d20\uff0c\u56e0\u6b64\u7845\u8868\u9762\u7684\u6539\u6027\u4ee5\u589e\u5f3a\u4ece\u5149\u4f0f\u5668\u4ef6\u4e2d\u6709\u673a\u5206\u5b50\u6536\u96c6\u5bf9\u53d1\u5c55\u7535\u5b50\u5de5\u4e1a\u81f3\u5173\u91cd\u8981\u3002\u4e3a\u6b64\uff0c\u4f7f\u7528NHCs\u4f5c\u4e3a\u8fdb\u4e00\u6b65\u529f\u80fd\u5316\u7684\u951a\u5b9a\u5242\uff0c\u540c\u65f6\u4e5f\u4f5c\u4e3a\u7535\u5b50\u548c\u7a7a\u95f4\u53ef\u8c03\u914d\u4f53\uff0c\u53ef\u80fd\u662f\u4e00\u79cd\u5f88\u6709\u524d\u666f\u7684\u65b9\u6cd5\u3002\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u53ea\u6709\u4e00\u9879\u5173\u4e8eNHCs\u5728\u7845\u8868\u9762\u5438\u9644\u7684\u8be6\u7ec6\u7814\u7a76\uff0c\u7814\u7a76\u8005\u7814\u7a76\u4e86\u5404\u79cdNHCs\u5728\u4ee5H\u4e3a\u672b\u7aef\u7684\u7845\u4e0a\u7684\u5438\u9644\uff0c\u5e76\u53d1\u73b0\u63d2\u5165Si-H\u952e\u540e\uff0c\u5f62\u6210H-C-Si\u952e\u3002<\/p>\n

\u8fd1\u65e5\uff0c\u5fb7\u56fd<\/strong>\u67cf\u6797\u5de5\u4e1a\u5927\u5b66<\/strong>Mario D\u00e4hne<\/strong>\u3001Norbert Esser\u548c\u660e\u65af\u7279\u5a01\u5ec9\u5927\u5b66Frank Glorius<\/strong>\uff08<\/strong>\u5171\u540c<\/strong>\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u57fa\u4e8e\u626b\u63cf\u96a7\u9053\u663e\u5fae\u955c (STM)\u3001\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba (DFT) \u548c X \u5c04\u7ebf\u5149\u7535\u5b50\u80fd\u8c31 (XPS) \u7814\u7a76\u4e86NHC\u5355\u5206\u5b50\u5c42\u5728 Si\uff08111\uff09\u4e0a\u7684\u751f\u957f\uff0c\u5e76\u8bc1\u660e NHCs\u4e0eSi\u901a\u8fc7\u5355\u4e2a Si-C \u952e\u8868\u9762\u7ed3\u5408\u3002\u540c\u65f6\uff0c\u4f5c\u8005\u901a\u8fc7\u5728Si\uff08111\uff09\u221a3\u00d7\u221a3 R30\u00b0-B\u8868\u9762\u4f7f\u7528\u4e24\u79cd\u4e0d\u540c\u7684NHC\u6a21\u578b\uff0c\u53731,3-\u53cc(2,6-\u4e8c\u5f02\u4e19\u57fa\u82ef\u57fa)\u54aa\u5511-2-\u4e9a\u57fa\uff08IPr\uff09\u548c1,3-\u4e8c\u7532\u57fa\u54aa\u5511-2-\u4e9a\u57fa\uff08IMe\uff09\u6765\u6539\u53d8\u5206\u5b50-\u57fa\u5e95\u76f8\u4e92\u4f5c\u7528\u3002\u8be5\u57fa\u5e95\u56e0B\u539f\u5b50\u7684\u4e9a\u8868\u9762\u7ed3\u5408\u800c\u5931\u6d3b\uff0c\u5e76\u5df2\u88ab\u8bc1\u660e\u9002\u5408\u7528\u4e8e\u6709\u673a\u819c\u7684\u6709\u5e8f\u751f\u957f\u3002\u4f5c\u4e3a\u5bf9\u6bd4\uff0c\u4f5c\u8005\u8fd8\u7814\u7a76\u4e86IPr\u5728\u6d3b\u6027\u66f4\u5f3a\u7684Si\uff08111\uff097\u00d77\u8868\u9762\u4e0a\u7684 IPr \u5438\u9644\u3002\u5bf9\u4e8e\u6240\u6709\u7814\u7a76\u7684NHC\uff0c\u5728\u78b3\u539f\u5b50\u4e0e\u7845\u8868\u9762\u539f\u5b50\u4e4b\u95f4\u5f62\u6210\u5171\u4ef7\u952e\u7684NHC\u88ab\u5782\u76f4\u5438\u9644\u3002\u7136\u800c\uff0c\u83b7\u5f97\u7684\u5355\u5c42\u7684\u7ed3\u6784\u8d28\u91cf\u5bf9\u8868\u9762\u7684\u53ef\u63a7\u529f\u80fd\u5316\u5f88\u91cd\u8981\uff0c\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u53d6\u51b3\u4e8eNHCs\u5206\u5b50\u7684\u9009\u62e9\uff0c\u7279\u522b\u662f\u5b83\u7684\u7a7a\u95f4\u7279\u6027\u4ee5\u53ca\u8868\u9762-\u5206\u5b50\u548c\u5206\u5b50\u95f4\u76f8\u4e92\u4f5c\u7528\u4e4b\u95f4\u7684\u5e73\u8861\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u4ee5\u201cControlled growth of ordered monolayers of N-heterocyclic carbenes on silicon<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Nature Chemistry<\/i><\/em><\/strong>\u4e0a\u3002<\/p>\n

\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/b><\/strong><\/p>\n

\u56fe<\/b><\/strong>\u4e00<\/b><\/strong>\u3001NHC<\/b><\/strong>s<\/b><\/strong>\u4f5c\u4e3a\u8868\u9762<\/b><\/strong>\u6539\u6027\u5242<\/b><\/strong>\"\"<\/b><\/strong><\/p>\n

\uff08a\uff09\u5df2\u7ecf\u5728\u91d1\u5c5e\u8868\u9762\u5efa\u7acb\u7684NHCs\uff1b<\/p>\n

\uff08b\uff09\u5728\u7845\u8868\u9762\u672a\u88ab\u63a2\u7a76\u7684NHCs\uff1b<\/p>\n

\uff08e\uff09\u672c\u6587\u4e2d\u7814\u7a76\u7684NHCs\uff1b<\/p>\n

\uff08d\uff09NHC\u5206\u5b50\u5728Si(111)\u4e0a\u7684UHV\u6c89\u79ef\u539f\u7406\uff1b<\/p>\n

\u56fe<\/b><\/strong>\u4e8c\u3001Si(111)-B\u4e0a\u7684IPr\u5438\u9644\u548c\u5355\u5c42\u5f62\u6210<\/b><\/strong>\"\"<\/b><\/strong><\/p>\n

\uff08a\uff0cb\uff09\u626b\u63cf\u96a7\u9053\u663e\u5fae\u955c\uff08STM\uff09\u7684\u56fe\u50cf\u6982\u8ff0\uff1b<\/p>\n

\uff08c\uff09\u5355\u4e2aIPr\u5206\u5b50\u548c Si-Si\uff08S5<\/sub>\uff09\u7f3a\u9677\uff0c\u4ee5\u53ca\u5c40\u90e8\u6709\u5e8f\u7684IPr\u5206\u5b50\u7684\u5206\u5e03\uff1b<\/p>\n

\uff08d\uff0ce\uff09Si(111)-B\u7684\u603b\u4f53\u6982\u8ff0\u548c\u8be6\u7ec6\u7684STM\u56fe\u50cf\uff1b<\/p>\n

\uff08f\uff0cg\uff09Si(111)-B\u4e0a\u5355\u4e2aIPr\u5206\u5b50\u5438\u9644\u51e0\u4f55\u5f62\u72b6\u7684\u56fe\u50cf\uff1b<\/p>\n

\uff08h\uff0ci\uff09Si(111)-B\u4e0aIPr\u5355\u5c42\u7684XPS\u56fe\u8c31\uff1b<\/p>\n

\u56fe<\/b><\/strong>\u4e09<\/b><\/strong>\u3001<\/b><\/strong>Si(111)-B\u4e0a<\/b><\/strong>IMe\u7684\u5438\u9644<\/b><\/strong>\"\"<\/p>\n

\uff08a\uff09\u4f4eIMe\u542b\u91cf\u7684Si(111)-B\u6837\u54c1\u7684STM\u56fe\u50cf\uff1b<\/p>\n

\uff08b\uff09\u9ad8IMe\u542b\u91cf\u7684Si(111)-B\u6837\u54c1\u7684STM\u56fe\u50cf\uff1b<\/p>\n

\uff08c\uff0cd\uff09\u4eceDFT\u8ba1\u7b97\u4e2d\u5f97\u5230\u7684Si(111)-B\u4e0a\u5b64\u7acb\u7684IMe\u5206\u5b50\u7684\u80fd\u91cf\u4e0a\u6700\u6709\u5229\u7684\u51e0\u4f55\u5f62\u72b6\uff1b<\/p>\n

\uff08e\uff0cf\uff09C1s\u548cB1s\u7684XPS\u5206\u6790\u7ed3\u679c\uff1b<\/p>\n

\u56fe<\/b><\/strong>\u56db<\/b><\/strong>\u3001<\/b><\/strong>Si(111)-B<\/b><\/strong>\u4e0a\u7684NHCs\u7684\u52bf\u80fd\u9762<\/b><\/strong>\"\"<\/p>\n

\uff08a\uff0cb\uff09IPr\u548cIMe\u7684\u914d\u8272\u56fe\uff1b<\/p>\n

\uff08c\uff09\u6cbf\u7740MEPs\u7684\u6269\u6563\u80fd\u5792\uff1b<\/p>\n

\uff08d\uff09\u78b3\u70efC\u539f\u5b50\u7684\u9ad8\u5ea6\uff1b<\/p>\n

\uff08e\uff0cf\uff09\u6cbfIPr\u548cIMe MEPs\u7684\u51e0\u4f55\u56fe\u5f62\u3002<\/p>\n

\u3010\u5c0f\u7ed3\u3011<\/b><\/strong><\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u5728\u8be6\u7ec6\u7684 STM\u3001DFT \u548c XPS \u7814\u7a76\u4e2d\uff0c\u4f5c\u8005\u5df2\u7ecf\u8bc1\u660e\u4e86\u4f7f\u7528\u4e0d\u540c\u6a21\u578b NHCs\u5728 Si\uff08111\uff09\u4e0a\u5f62\u6210\u5171\u4ef7\u7ed3\u5408\u7684 NHC\u5355\u5c42\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f5c\u8005\u6210\u529f\u63cf\u8ff0\u5e76\u8bc1\u660e\u4e86\u901a\u8fc7 NHCs\u7684\u76f4\u63a5\u952e\u5408\u5bf9 Si \u8868\u9762\u7684\u6539\u6027\uff0c\u4ece\u800c\u5bfc\u81f4\u5177\u6709\u9ad8\u70ed\u7a33\u5b9a\u6027\u7684\u5355\u5c42\u3002NHC\/\u8868\u9762\u7ec4\u5408\u7684\u9009\u62e9\u51b3\u5b9a\u4e86\u6240\u83b7\u5f97\u5355\u5c42\u7684\u7ed3\u6784\u8d28\u91cf\uff0c\u4ece\u9ad8\u5ea6\u6709\u5e8f\uff08Si(111)-B \u4e0a\u7684IPr\uff09\u548c\u5c40\u90e8\u6709\u5e8f\uff08Si(111)-B\u4e0a\u7684 IMe\uff09\u5230\u5b8c\u5168\u65e0\u5e8f\uff08Si(111)7\u00d77\u4e0a\u7684IPr\uff09\u3002\u8fd9\u4e9b\u663e\u8457\u5dee\u5f02\u8868\u660e\u4e0e\u4e0d\u540c\u4fa7\u57fa\u76f8\u5173\u7684\u7a7a\u95f4\u7279\u6027\u662f\u5982\u4f55\u5f71\u54cd\u5355\u5c42\u7684\u6709\u5e8f\u5ea6\u3002\u672c\u7814\u7a76\u5bf9Si\u4e0aNHCs\u7684\u7c98\u5408\u3001\u7ed3\u6784\u548c\u7ec4\u88c5\u7684\u6df1\u523b\u7406\u89e3\uff0c\u4e3a\u7845\u8868\u9762\u548c\u5176\u4ed6\u975e\u91d1\u5c5e\u6750\u6599\u7684\u5b9a\u5411\u6539\u9020\u63d0\u4f9b\u4e86\u6307\u5bfc\u89c4\u5219\uff0c\u5e76\u5f00\u8f9f\u4e86\u5927\u95e8\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a\u201cControlled growth of ordered monolayers of N-heterocyclic carbenes on silicon<\/a><\/strong>\u201d(<\/strong>Nature Chemistry<\/i><\/em><\/strong>\uff0c<\/b><\/strong>202<\/strong>1<\/strong>\uff0c<\/strong>10.1038\/s41560-021-00833-6<\/strong>)<\/strong><\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4ebaCYM\u7f16\u8bd1\u4f9b\u7a3f\u3002\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com\u3002<\/p>\n

\u6750\u6599\u4eba\u6295\u7a3f\u4ee5\u53ca\u5185\u5bb9\u5408\u4f5c\u53ef\u52a0\u7f16\u8f91\u5fae\u4fe1\uff1acailiaokefu \u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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