{"id":65178,"date":"2017-02-14T06:30:05","date_gmt":"2017-02-13T22:30:05","guid":{"rendered":"\/\/m.iemloyee.com\/?p=65178"},"modified":"2017-02-14T09:01:59","modified_gmt":"2017-02-14T01:01:59","slug":"nature%e5%ad%90%e5%88%8a%ef%bc%9a%e9%ab%98%e5%8e%8b%e4%b8%8b%e6%b0%a6%e5%92%8c%e9%92%a0%e5%bd%a2%e6%88%90%e7%9a%84%e7%a8%b3%e5%ae%9a%e5%8c%96%e5%90%88%e7%89%a9","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=65178","title":{"rendered":"Nature\u5b50\u520a\uff1a\u4e07\u5e74\u5355\u8eab\u72d7\u7684”\u4ed6”(He)\u7ec8\u8131\u5355-\u4e2d\u56fd\u5b66\u8005\u9996\u6b21\u5408\u6210\u7a33\u5b9a\u6c26\u94a0\u5316\u5408\u7269Na2He"},"content":{"rendered":"

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

\u6c26\u5728\u5b87\u5b99\u4e2d\u662f\u9664\u4e86\u6c22\u5916\u542b\u91cf\u6700\u4e3a\u4e30\u5bcc\u7684\u5143\u7d20\uff0c\u5176\u5728\u5e38\u6001\u6052\u661f\u4ee5\u53ca\u6728\u661f\u548c\u571f\u661f\u7b49\u5de8\u578b\u6c14\u6001\u884c\u661f\u4e2d\u542b\u91cf\u5de8\u5927\u3002\u7531\u4e8e\u6c26\u7684\u7535\u79bb\u52bf\u5728\u6240\u6709\u5143\u7d20\u4e2d\u6700\u9ad8\uff0c\u5e76\u4e14\u7535\u5b50\u4eb2\u548c\u52bf\u4e3a\u96f6\uff0c\u6240\u4ee5\u6c26\u662f\u5316\u5b66\u5143\u7d20\u5468\u671f\u8868\u4e2d\u60f0\u6027\u6700\u5f3a\u7684\u5143\u7d20\u3002\u8ba9\u6c26\u5143\u7d20\u201c\u8131\u5355\u201d\u5c31\u6210\u4e3a\u4e86\u4e00\u4e2a\u6709\u8da3\u7684\u7814\u7a76\u8bfe\u9898\uff0c\u6700\u8fd1\u51e0\u5341\u5e74\u6765\uff0c\u5f88\u591a\u79d1\u5b66\u5bb6\u90fd\u8bd5\u56fe\u5bfb\u627e\u5230\u6c26\u7684\u7a33\u5b9a\u5316\u5408\u7269\u3002\u800c\u5176\u4e2d\u6700\u4e3a\u6210\u529f\u7684\u4f8b\u5b50\u5c31\u662fHeH+<\/sup>\u81ea\u7531\u57fa\uff0c\u5b83\u6781\u5176\u6d3b\u6cfc\uff0c\u4f1a\u4f7f\u4efb\u4f55\u78b1\u8d28\u5b50\u5316\u3002\u5728\u7406\u8bba\u53ca\u5b9e\u9a8c\u4e2d\u53d1\u73b0\u8fc7\u5f88\u591a\u4e2d\u6027\u5206\u5b50\uff0c\u4f46\u662f\u5b83\u4eec\u7684\u80fd\u91cf\u6781\u9ad8\uff0c\u5904\u4e8e\u4e9a\u7a33\u6001\u3002\u552f\u4e00\u5df2\u77e5\u7684\u7a33\u5b9a\u56fa\u6001\u5316\u5408\u7269\u5c31\u662f\u6c26\u7684\u8303\u5fb7\u74e6\u5c14\u65af\u5316\u5408\u7269\uff0c\u5982NeHe2<\/sub>\u548cHe@H2<\/sub>O\u3002\u538b\u529b\u5bf9\u5316\u5b66\u5143\u7d20\u7684\u5f71\u54cd\u6781\u4e3a\u5de8\u5927\uff0c\u5f88\u591a\u5143\u7d20\u5728\u9ad8\u538b\u4e0b\u4f1a\u53d8\u5f97\u76f8\u5f53\u6d3b\u6cfc\uff0c\u4f8b\u5982\u4e00\u4e9b\u8f83\u91cd\u7684\u7a00\u6709\u6c14\u4f53\u4f1a\u5f62\u6210\u5316\u5408\u7269\uff0c\u800c\u67d0\u4e9b\u91d1\u5c5e\u5143\u7d20\u4f1a\u53d8\u4e3a\u7edd\u7f18\u4f53\u3002\u5316\u5b66\u5143\u7d20\u5728\u9ad8\u538b\u4e0b\u7684\u8fd9\u4e9b\u6709\u8da3\u6027\u8d28\u4e3a\u7814\u7a76\u60f0\u6027\u6700\u9ad8\u7684\u6c26\u5143\u7d20\u53ca\u5176\u5316\u5408\u7269\u5408\u6210\u63d0\u4f9b\u4e86\u4e00\u79cd\u6709\u6548\u7684\u65b9\u6cd5\u3002<\/p>\n

\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u6765\u81ea\u5357\u5f00\u5927\u5b66\u7684\u738b\u6167\u7530\u6559\u6388\u3001\u5468\u5411\u950b\u6559\u6388\u548c\u7f8e\u56fd\u77f3\u6eaa\u5927\u5b66\u7684<\/strong>Artem R. Oganov<\/strong>\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\uff09<\/strong>\u7b49\u4eba\u7814\u7a76\u4e86\u60f0\u6027\u6700\u5f3a\u7684\u6c26\u5143\u7d20\u548c\u6d3b\u6cfc\u91d1\u5c5e\u5143\u7d20\u94a0\u5728\u9ad8\u538b\u4e0b\u7684\u53cd\u5e94\uff0c\u5e76\u5f97\u5230\u4e86\u6c26\u548c\u94a0\u7684\u7a33\u5b9a\u5316\u5408\u7269\u3002\u76f8\u5173\u7684\u7814\u7a76\u6210\u679c\u4ee5\u201c<\/strong>A stable compound of helium and sodium at high pressure<\/strong>\u201d<\/strong>\u4e3a\u9898\u53d1\u8868\u5728\u4e862017\u5e742\u67086\u65e5\u7684Nature Chemistry<\/strong>\u4e0a\u3002<\/p>\n

\u6c26\u7531\u4e8e\u975e\u5e38\u7a33\u5b9a\u7684\u6838\u58f3\u7535\u5b50\u7ed3\u6784\u3001\u96f6\u7535\u5b50\u4eb2\u548c\u52bf\u548c\u975e\u5e38\u9ad8\u7684\u79bb\u5b50\u52bf\uff0c\u56e0\u6b64\u662f\u5316\u5b66\u60f0\u6027\u7684\u3002\u9664\u4e86\u4e00\u4e9b\u5305\u5408\u7269\u5916\uff0c\u8fd8\u6ca1\u6709\u5236\u5907\u51fa\u70ed\u529b\u5b66\u7a33\u5b9a\u7684\u5316\u5408\u7269\u3002\u672c\u6587\u5229\u7528\u4ece\u5934\u8ba1\u7b97\u7684\u8fdb\u5316\u7b97\u6cd5USPEX\u548c\u91d1\u521a\u77f3\u538b\u8154\u4e2d\u7684\u9ad8\u538b\u5408\u6210\u65b9\u6cd5\u5f97\u5230\u4e86\u70ed\u529b\u5b66\u7a33\u5b9a\u7684\u6c26-\u94a0\u5316\u5408\u7269\u2014\u2014Na2<\/sub>He\uff0c\u5176\u5177\u6709\u8424\u77f3\u7ed3\u6784\u5e76\u4e14\u5728\u8d85\u8fc7113GPa\u7684\u538b\u529b\u4e0b\u80fd\u591f\u4fdd\u6301\u7a33\u5b9a\u3002\u5b9e\u9a8c\u8868\u660e\uff0c\u6c26\u539f\u5b50\u7684\u5b58\u5728\u5bfc\u81f4\u4e86\u5f3a\u70c8\u7684\u7535\u5b50\u5b9a\u57df\u6548\u5e94\uff0c\u56e0\u6b64Na2<\/sub>He\u8868\u73b0\u51fa\u4e86\u7edd\u7f18\u7684\u7279\u6027\u3002\u8fd9\u79cd\u72b6\u6001\u662f\u4e00\u79cd\u7535\u5b50\u5316\u5408\u7269\uff0c\u7535\u5b50\u5bf9\u5728\u95f4\u9699\u4e2d\u5b9a\u57df\uff0c\u5e76\u5728Na8<\/sub>\u7684\u7acb\u65b9\u4f53\u4e2d\u5f62\u6210\u4e86\u516b\u4e2d\u5fc3\u4e24\u7535\u5b50\u7ed3\u5408\u7684\u7279\u6b8a\u7ed3\u6784\u3002\u6b64\u5916\uff0c\u6587\u4e2d\u8fd8\u9884\u8a00\u4e86\u572815GPa\u4ee5\u4e0a\u6761\u4ef6\u4e0b\u7c7b\u4f3c\u7ed3\u6784\u7684\u5316\u5408\u7269Na2<\/sub>HeO\u7684\u5b58\u5728\u3002<\/p>\n

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

\u56fe<\/strong>1 Na-He<\/strong>\u7cfb\u7edf\u4e2d<\/strong>Na2<\/sub>He<\/strong>\u548c<\/strong>Na-He<\/strong>\u6df7\u5408\u7269\u95f4\u7684\u70ed\u7113\u7a33\u5b9a\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

\uff08<\/strong>a<\/strong>\uff09<\/strong>\u57fa\u4e8e\u4e0d\u540c\u538b\u529b\u4e0bNa\u548cHe\u7406\u8bba\u57fa\u6001\u7684Na-He\u7cfb\u7edf\u51f8\u5305<\/p>\n

\uff08<\/strong>b<\/strong>\uff09<\/strong>\u4e0d\u540c\u538b\u529b\u4e0bNa2<\/sub>He\u751f\u6210\u7113\u7684\u53d8\u5316\u66f2\u7ebf<\/p>\n

\u56fe<\/strong>2 300GPa<\/strong>\u538b\u529b\u4e0b<\/strong>Na2<\/sub>He<\/strong>\u7684\u6676\u4f53\u7ed3\u6784<\/strong><\/p>\n

\"\"<\/p>\n

\uff08<\/strong>a<\/strong>\uff09<\/strong>Na2<\/sub>He\u7ed3\u6784\u7684\u7403\u68cd\u6a21\u578b\uff0c\u5176\u4e2d\u7c89\u8272\u539f\u5b50\u4e3aNa\uff0c\u7070\u8272\u539f\u5b50\u4e3aHe<\/p>\n

\uff08<\/strong>b<\/strong>\uff09<\/strong>Na2<\/sub>He\u7ed3\u6784\u7684\u516b\u9762\u4f53\u8868\u793a\uff0c\u5176\u4e2dNa8<\/sub>\u7acb\u65b9\u4f53\u7684\u4e00\u534a\u7531He\u539f\u5b50\u5360\u636e\uff0c\u53e6\u4e00\u534a\u5219\u4e3a2e\u5360\u636e<\/p>\n

\uff08<\/strong>c<\/strong>\uff09<\/strong>300GPa\u538b\u529b\u4e0b[110]\u6676\u9762\u7684\u7535\u5b50\u5b9a\u57df\u51fd\u6570<\/p>\n

\u56fe<\/strong>3 Na2<\/sub>He<\/strong>\u7684\u76f8\u5173\u5b9e\u9a8c\u6570\u636e<\/strong><\/p>\n

\"\"<\/p>\n

\uff08<\/strong>a<\/strong>\uff09<\/strong>\u52a0\u70ed\u524d\u548c\u5206\u522b\u5728\u7ea61200K\u548c1500K\u4ee5\u4e0a\u70ed\u5904\u7406\u540e\u7684XRD\u56fe<\/p>\n

\uff08<\/strong>b<\/strong>\uff09<\/strong>\u6837\u54c1\u57281500K\u52a0\u70ed\u540e\u5f84\u5411\u7684\u4e8c\u7ef4\u56fe\u7247\uff0c\u5176\u4e2d\uff0ctl19-Na\u548cNa2<\/sub>He\u7684\u5355\u6676\u53cd\u5c04\u5206\u522b\u7531\u6d45\u84dd\u8272\u5706\u73af\u548c\u767d\u8272\u77e9\u5f62\u6807\u8bb0<\/p>\n

\uff08<\/strong>c<\/strong>\uff09<\/strong>\u5728113-155GPa\u6761\u4ef6\u4e0b\u91d1\u521a\u77f3\u538b\u8154\u4e2d\u5408\u6210\u7684Na2<\/sub>He\u548cNa\u7684\u72b6\u6001\u51fd\u6570\u6bd4\u8f83<\/p>\n

\u56fe<\/strong>4 Na2<\/sub>He<\/strong>\u7684\u7535\u5b50\u7ed3\u6784<\/strong><\/p>\n

\"\"<\/p>\n

\uff08<\/strong>a<\/strong>\uff09<\/strong>Na2<\/sub>He\u548cNa\u4e9a\u6676\u683c\u7684\u72b6\u6001\u5bc6\u5ea6\uff08DOS\uff09\uff0c\u56fe\u4e2d\u8868\u660eHe\u7684\u63d2\u5165\u6253\u5f00\u4e86\u80fd\u9699<\/p>\n

\uff08<\/strong>b<\/strong>\uff09<\/strong>\u4e0d\u540c\u538b\u529b\u4e0b\u80fd\u5e26\u7ed3\u6784\u548c\u80fd\u9699\u7684\u53d8\u5316\u56fe<\/p>\n

\uff08<\/strong>c<\/strong>\uff09<\/strong>He\u4e9a\u6676\u683c\u7684\u63d2\u5165\u8bf1\u5bfc\u7684\u7535\u5b50\u5bc6\u5ea6\u53d8\u5316<\/p>\n

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

\u672c\u6587\u4ece\u7406\u8bba\u548c\u5b9e\u9a8c\u4e0a\u7cfb\u7edf\u7814\u7a76\u4e86\u6c26\u7684\u7a33\u5b9a\u5316\u5408\u7269\u2014\u2014\u7acb\u65b9\u76f8Na2<\/sub>He\uff0c\u5b9e\u9a8c\u8868\u660e\uff0c\u5176\u5728113GPa\u52301000GPa\u7684\u538b\u529b\u4e0b\u53ef\u4ee5\u4fdd\u6301\u7a33\u5b9a\u3002\u8fd9\u79cd\u7535\u5b50\u5316\u5408\u7269\u662f\u7531\u5e26\u6b63\u7535\u8377\u7684\u6838\u548c\u9634\u79bb\u5b50\u4e2d\u5f3a\u70c8\u5b9a\u57df\u7684\u4ef7\u5e26\u539f\u5b50\u7ec4\u6210\u7684\u3002\u6b63\u5982\u7c7b\u76d0\u5316\u5408\u7269\u4e00\u6837\uff0cHe\u539f\u5b50\u7684\u63d2\u5165\u4f7f\u5f97\u7535\u5b50\u6c14\u8fdc\u79bb\uff0c\u5e76\u5bfc\u81f4\u4e86\u4ef7\u5e26\u7535\u5b50\u7684\u5b9a\u57df\u6027\uff0c\u4e0e\u6b64\u540c\u65f6\uff0c\u5f62\u6210\u4e86\u516b\u4e2d\u5fc3\u4e24\u7535\u5b50\u952e\u5408\u7684\u7ed3\u6784\uff0c\u80fd\u9699\u53d8\u5bbd\u3002\u6b64\u5916\uff0c\u6587\u4e2d\u5408\u6210\u7684Na2<\/sub>He\u548c\u9884\u8a00\u7684Na2<\/sub>HeO\u6539\u53d8\u4e86\u6c26\u5316\u5b66\u8fd9\u4e00\u9886\u57df\u7684\u8ba4\u8bc6\uff0c\u4e3a\u7a00\u6709\u6c14\u4f53\u5316\u5b66\u63d0\u4f9b\u4e86\u4e24\u79cd\u65b0\u578b\u7684\u5316\u5408\u7269\uff0c\u8fd9\u9879\u6210\u679c\u5fc5\u5c06\u6539\u53d8\u76ee\u524d\u5bf9\u5316\u5b66\u952e\u7684\u8ba4\u8bc6\uff0c\u5e76\u5bf9\u6df1\u523b\u7406\u89e3\u5de8\u884c\u661f\u4e2d\u7684\u5316\u5b66\u53cd\u5e94\u8fc7\u7a0b\u6709\u5de8\u5927\u5e2e\u52a9\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>A stable compound of helium and sodium at high pressure<\/a>\uff08Nat. Chem., 2017, DOI: 10.1002\/adfm.201605476\uff09<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7535\u5b50\u7535\u5de5\u5b66\u672f\u7ec4\u5927\u57ce\u5c0f\u7231\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n

\u6750\u6599\u725b\u7f51\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u5982\u679c\u60a8\u5bf9\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u8fdb\u5c55\uff0c\u89e3\u8bfb\u9ad8\u6c34\u5e73\u6587\u7ae0\u6216\u662f\u8bc4\u8ff0\u884c\u4e1a\u6709\u5174\u8da3\uff0c\u70b9\u6211\u52a0\u5165\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n

\u6750\u6599\u6d4b\u8bd5\uff0c\u6570\u636e\u5206\u6790\uff0c\u4e0a\u6d4b\u8bd5\u8c37<\/a>\uff01<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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