同一物质既有苯环也要杂芳环,如何区分红外光谱 试推断下图为何一化合物的红外光谱图?简要说明。

\u600e\u4e48\u770b\u7ea2\u5916\u5149\u8c31\u56fe\uff1f

1\uff0c\u6839\u636e\u5206\u5b50\u5f0f\u8ba1\u7b97\u4e0d\u9971\u548c\u5ea6\u516c\u5f0f\uff1a \u4e0d\u9971\u548c\u5ea6 \u03a9=n4+1+(n3-n1)/2 \u5176\u4e2d\uff1a n4\uff1a\u5316\u5408\u4ef7\u4e3a4\u4ef7\u7684\u539f\u5b50\u4e2a\u6570\uff0c n3\uff1a\u5316\u5408\u4ef7\u4e3a3\u4ef7\u7684\u539f\u5b50\u4e2a\u6570\uff0c n1\uff1a\u5316\u5408\u4ef7\u4e3a1\u4ef7\u7684\u539f\u5b50\u4e2a\u6570\u3002
2\uff0c\u5206\u67903300~2800cm-1\u533a\u57dfC-H\u4f38\u7f29\u632f\u52a8\u5438\u6536;\u4ee53000 cm-1\u4e3a\u754c\uff1a\u9ad8\u4e8e3000cm-1\u4e3a\u4e0d\u9971\u548c\u78b3C-H\u4f38\u7f29\u632f\u52a8\u5438\u6536\uff0c\u6709\u53ef\u80fd\u4e3a\u70ef\uff0c\u7094\uff0c\u82b3\u9999\u5316\u5408\u7269;\u800c\u4f4e\u4e8e3000cm-1\u4e00\u822c\u4e3a\u9971\u548cC-H\u4f38\u7f29\u632f\u52a8\u5438\u6536;
3\uff0c\u82e5\u5728\u7a0d\u9ad8\u4e8e3000cm-1\u6709\u5438\u6536,\u5219\u5e94\u5728 2250~1450cm-1\u9891\u533a\uff0c\u5206\u6790\u4e0d\u9971\u548c\u78b3\u78b3\u952e\u7684\u4f38\u7f29\u632f\u52a8\u5438\u6536\u7279\u5f81\u5cf0\uff0c\u5176\u4e2d\u7094\uff1a 2200~2100 cm-1\uff0c \u70ef\uff1a1680~1640 cm-1 \u82b3\u73af\uff1a1600,1580,1500,1450 cm-1\u82e5\u5df2\u786e\u5b9a\u4e3a\u70ef\u6216\u82b3\u9999\u5316\u5408\u7269\uff0c\u5219\u5e94\u8fdb\u4e00\u6b65\u89e3\u6790\u6307\u7eb9\u533a\uff0c\u53731000~650cm-1\u7684\u9891\u533a\uff0c\u4ee5\u786e\u5b9a\u53d6\u4ee3\u57fa\u4e2a\u6570\u548c\u4f4d\u7f6e(\u987a\u3001\u53cd\uff0c\u90bb\u3001\u95f4\u3001\u5bf9);
4\uff0c\u78b3\u9aa8\u67b6\u7c7b\u578b\u786e\u5b9a\u540e,\u518d\u4f9d\u636e\u5b98\u80fd\u56e2\u7279\u5f81\u5438\u6536\uff0c\u5224\u5b9a\u5316\u5408\u7269\u7684\u5b98\u80fd\u56e2;
5\uff0c\u89e3\u6790\u65f6\u5e94\u6ce8\u610f\u628a\u63cf\u8ff0\u5404\u5b98\u80fd\u56e2\u7684\u76f8\u5173\u5cf0\u8054\u7cfb\u8d77\u6765\uff0c\u4ee5\u51c6\u786e\u5224\u5b9a\u5b98\u80fd\u56e2\u7684\u5b58\u5728,\u59822820\uff0c2720\u548c1750~1700cm-1\u7684\u4e09\u4e2a\u5cf0\uff0c\u8bf4\u660e\u919b\u57fa\u7684\u5b58\u5728\u3002

\u6269\u5c55\u8d44\u6599\uff1a
\u7ea2\u5916\u5149\u8c31\u662f\u5206\u5b50\u80fd\u9009\u62e9\u6027\u5438\u6536\u67d0\u4e9b\u6ce2\u957f\u7684\u7ea2\u5916\u7ebf,\u800c\u5f15\u8d77\u5206\u5b50\u4e2d\u632f\u52a8\u80fd\u7ea7\u548c\u8f6c\u52a8\u80fd\u7ea7\u7684\u8dc3\u8fc1\uff0c\u68c0\u6d4b\u7ea2\u5916\u7ebf\u88ab\u5438\u6536\u7684\u60c5\u51b5\u53ef\u5f97\u5230\u7269\u8d28\u7684\u7ea2\u5916\u5438\u6536\u5149\u8c31\uff0c\u53c8\u79f0\u5206\u5b50\u632f\u52a8\u5149\u8c31\u6216\u632f\u8f6c\u5149\u8c31\u3002
\u901a\u5e38\u5c06\u7ea2\u5916\u5149\u8c31\u5206\u4e3a\u4e09\u4e2a\u533a\u57df\uff1a\u8fd1\u7ea2\u5916\u533a(0.75~2.5\u03bcm)\u3001\u4e2d\u7ea2\u5916\u533a(2.5~25\u03bcm)\u548c\u8fdc\u7ea2\u5916\u533a(25~300\u03bcm)\u3002\u4e00\u822c\u8bf4\u6765\uff0c\u8fd1\u7ea2\u5916\u5149\u8c31\u662f\u7531\u5206\u5b50\u7684\u500d\u9891\u3001\u5408\u9891\u4ea7\u751f\u7684\uff1b\u4e2d\u7ea2\u5916\u5149\u8c31\u5c5e\u4e8e\u5206\u5b50\u7684\u57fa\u9891\u632f\u52a8\u5149\u8c31\uff1b\u8fdc\u7ea2\u5916\u5149\u8c31\u5219\u5c5e\u4e8e\u5206\u5b50\u7684\u8f6c\u52a8\u5149\u8c31\u548c\u67d0\u4e9b\u57fa\u56e2\u7684\u632f\u52a8\u5149\u8c31\u3002
\u7531\u4e8e\u7edd\u5927\u591a\u6570\u6709\u673a\u7269\u548c\u65e0\u673a\u7269\u7684\u57fa\u9891\u5438\u6536\u5e26\u90fd\u51fa\u73b0\u5728\u4e2d\u7ea2\u5916\u533a\uff0c\u56e0\u6b64\u4e2d\u8fd1\u7ea2\u5916\u5149\u8c31\u4eea\u7ea2\u5916\u533a\u662f\u7814\u7a76\u548c\u5e94\u7528\u6700\u591a\u7684\u533a\u57df\uff0c\u79ef\u7d2f\u7684\u8d44\u6599\u4e5f\u6700\u591a\uff0c\u4eea\u5668\u6280\u672f\u6700\u4e3a\u6210\u719f\u3002
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1-\u7ea2\u5916\u5149\u8c31

\uff081\uff09\u9996\u5148\u4f9d\u636e\u8c31\u56fe\u63a8\u5316\u5408\u7269\u78b3\u67b6\u7c7b\u578b\uff1a\u6839\u636e\u5f0f\u8ba1\u7b97\u9971\u5ea6\u516c\u5f0f\uff1a

\u9971\u5ea6\uff1dF+1+(T-O)/2 \u5176\uff1a
F\uff1a\u5316\u5408\u4ef74\u4ef7\u539f\u6570\uff08\u4e3b\u8981C\u539f\uff09
T\uff1a\u5316\u5408\u4ef73\u4ef7\u539f\u6570\uff08\u4e3b\u8981N\u539f\uff09
O\uff1a\u5316\u5408\u4ef71\u4ef7\u539f\u6570\uff08\u4e3b\u8981H\u539f\uff09
\uff082\uff09\u67903300~2800cm-1\u533a\u57dfC-H\u4f38\u7f29\u632f\u5438\u6536\uff1b3000 cm-1\u754c\uff1a\u9ad8\u4e8e3000cm-1\u9971\u78b3C-H\u4f38\u7f29\u632f\u5438\u6536\u80fd\u70ef\u7094\u82b3\u9999\u5316\u5408\u7269\u4f4e\u4e8e3000cm-1\u822c\u9971C-H\u4f38\u7f29\u632f\u5438\u6536\uff1b
\uff083\uff09\u82e5\u7a0d\u9ad8\u4e8e3000cm-1\u5438\u6536,\u5219\u5e94 2250~1450cm-1\u9891\u533a\u6790\u9971\u78b3\u78b3\u952e\u4f38\u7f29\u632f\u5438\u6536\u7279\u5f81\u5cf0\u5176\uff1a
\u7094 2200~2100 cm-1
\u70ef 1680~1640 cm-1
\u82b3\u73af 1600,1580,1500,1450 cm-1
\u82e5\u5df2\u786e\u5b9a\u70ef\u6216\u82b3\u9999\u5316\u5408\u7269\u5219\u5e94\u8fdb\u6b65\u89e3\u6790\u6307\u7eb9\u533a\u53731000~650cm-1\u9891\u533a\u786e\u5b9a\u53d6\u4ee3\u57fa\u6570\u4f4d\u7f6e\uff08\u987a\u53cd\u90bb\u3001\u95f4\u3001\uff09\uff1b
\uff084\uff09\u78b3\u9aa8\u67b6\u7c7b\u578b\u786e\u5b9a,\u518d\u4f9d\u636e\u5176\u5b98\u80fd\u56e2 C=O, O-H, C-N \u7b49\u7279\u5f81\u5438\u6536\u5224\u5b9a\u5316\u5408\u7269\u5b98\u80fd\u56e2\uff1b
\uff085\uff09\u89e3\u6790\u5e94\u6ce8\u610f\u63cf\u8ff0\u5404\u5b98\u80fd\u56e2\u76f8\u5173\u5cf0\u8054\u7cfb\u8d77\u51c6\u786e\u5224\u5b9a\u5b98\u80fd\u56e2\u5b58,282027201750~1700cm-1\u4e09\u5cf0\u8bf4\u660e\u919b\u57fa\u5b58
\u81f3\u6790\u57fa\u672c\u641e\u5b9a\u5269\u80cc\u4e9b\u89c1\u7528\u5065\u503c
1.\u70f7\u70c3\uff1aC-H\u4f38\u7f29\u632f\uff083000-2850cm-1\uff09
C-H\u5f2f\u66f2\u632f\uff081465-1340cm-1\uff09
\u822c\u9971\u70c3C-H\u4f38\u7f29\u57473000cm-1\u63a5\u8fd13000cm-1\u9891\u7387\u5438\u6536
2.\u70ef\u70c3\uff1a\u70ef\u70c3C-H\u4f38\u7f29\uff083100~3010cm-1\uff09
C=C\u4f38\u7f29(1675~1640 cm-1)
\u70ef\u70c3C-H\u9762\u5916\u5f2f\u66f2\u632f\uff081000~675cm-1\uff09
3.\u7094\u70c3\uff1a\u4f38\u7f29\u632f\uff082250~2100cm-1\uff09
\u7094\u70c3C-H\u4f38\u7f29\u632f\uff083300cm-1\u9644\u8fd1\uff09
4.\u82b3\u70c3\uff1a3100~3000cm-1 \u82b3\u73afC-H\u4f38\u7f29\u632f
1600~1450cm-1 C=C \u9aa8\u67b6\u632f
880~680cm-1 C-H\u9762\u5916\u5f2f\u66f2\u632f
\u82b3\u9999\u5316\u5408\u7269\u91cd\u8981\u7279\u5f81\uff1a\u822c1600158015001450cm-1\u80fd\u73b0\u5f3a\u5ea6\u7b494\u5cf0
880~680cm-1C-H\u9762\u5916\u5f2f\u66f2\u632f\u5438\u6536\u4f9d\u82ef\u73af\u53d6\u4ee3\u57fa\u6570\u4f4d\u7f6e\u540c\u53d1\u53d8\u5316\u82b3\u9999\u5316\u5408\u7269\u7ea2\u5916\u8c31\u56fe\u6790\u7528\u9891\u533a\u5438\u6536\u5224\u522b\u5f02\u6784\u4f53
5.\u9187\u915a\uff1a\u4e3b\u8981\u7279\u5f81\u5438\u6536O-HC-O\u4f38\u7f29\u632f\u5438\u6536
O-H \u81ea\u7531\u7f9f\u57faO-H\u4f38\u7f29\u632f\uff1a3650~3600cm-1,\u5c16\u9510\u5438\u6536\u5cf0
\u95f4\u6c22\u952eO-H\u4f38\u7f29\u632f\uff1a3500~3200cm-1\u5bbd\u5438\u6536\u5cf0\uff1b
C-O \u4f38\u7f29\u632f\uff1a1300~1000cm-1
O-H \u9762\u5916\u5f2f\u66f2\uff1a769-659cm-1
6. \u919a\u7279\u5f81\u5438\u6536\uff1a1300~1000cm-1 \u4f38\u7f29\u632f
\u8102\u80aa\u919a\uff1a1150~1060cm-1 \u5f3a\u5438\u6536\u5cf0
\u82b3\u9999\u919a\uff1a\u4e24C-O\u4f38\u7f29\u632f\u5438\u6536\uff1a1270~1230cm-1\uff08Ar-O\u4f38\u7f29\uff091050~1000cm-1\uff08R-O\u4f38\u7f29\uff09
7.\u919b\u916e\uff1a\u919b\u4e3b\u8981\u7279\u5f81\u5438\u6536\uff1a1750~1700cm-1\uff08C=O\u4f38\u7f29\uff0928202720cm-1\uff08\u919b\u57faC-H\u4f38\u7f29\uff09
\u8102\u80aa\u916e\uff1a1715cm-1\u5f3aC=O\u4f38\u7f29\u632f\u5438\u6536\u7fb0\u57fa\u4e0e\u70ef\u952e\u6216\u82b3\u73af\u5171\u8f6d\u4f7f\u5438\u6536\u9891\u7387\u964d\u4f4e
8.\u7fa7\u9178\uff1a\u7fa7\u9178\u4e8c\u805a\u4f53\uff1a3300~2500cm-1 \u5bbd\u5f3aO-H\u4f38\u7f29\u5438\u6536
1720~1706cm-1 C=O \u5438\u6536
1320~1210cm-1 C-O\u4f38\u7f29
920cm-1 \u952eO-H\u952e\u9762\u5916\u5f2f\u66f2\u632f

9.\u916f\uff1a\u9971\u8102\u80aa\u65cf\u916f(\u9664\u7532\u9178\u916f\u5916)C=O \u5438\u6536\u8c31\u5e26\uff1a1750~1735cm-1\u533a\u57df
\u9971\u916fC-C(=O)-O\u8c31\u5e26\uff1a1210~1163cm-1 \u533a\u57df\u5f3a\u5438\u6536

10.\u80fa\uff1a3500~3100 cm-1N-H \u4f38\u7f29\u632f\u5438\u6536
1350~1000 cm-1C-N \u4f38\u7f29\u632f\u5438\u6536

N-H\u53d8\u5f62\u632f\u76f8\u4e8eCH2\u526a\u5f0f\u632f\u5f0f\u5176\u5438\u6536\u5e26\uff1a1640~1560cm-1\u9762\u5916\u5f2f\u66f2\u632f900~650cm-1.

11.\u8148\uff1a\u8148\u7c7b\u5149\u8c31\u7279\u5f81\uff1a\u4e09\u952e\u4f38\u7f29\u632f\u533a\u57df\u5f31\u7b49\u5438\u6536
\u8102\u80aa\u65cf\u8148 2260-2240cm-1
\u82b3\u9999\u65cf\u8148 2240-2222cm-1

12.\u9170\u80fa\uff1a3500-3100cm-1 N-H\u4f38\u7f29\u632f
1680-1630cm-1 C=O \u4f38\u7f29\u632f
1655-1590cm-1 N-H\u5f2f\u66f2\u632f
1420-1400cm-1 C-N\u4f38\u7f29

13.\u673a\u5364\u5316\u7269\uff1a
C-X \u4f38\u7f29 \u8102\u80aa\u65cf
C-F 1400-730 cm-1
C-Cl 850-550 cm-1
C-Br 690-515 cm-1
C-I 600-500 cm-1
\u611f\u89c9\u8fd9\u6837\u7684\u63d0\u95ee\u662f\u6ca1\u6709\u610f\u4e49\u7684
\u8fd8\u662f\u81ea\u5df1\u627e\u4e0b\u8d44\u6599\u5427



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