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1.The reaction time/product yield profiles of the nitration of benzene and alkyl derivatives all run linearly with a similar gradient over a wide range of reaction times until the substrates are completely consumed,showing no kinetic dependence of the reaction on the concentration of substrates.
2.The relative reactivities of mono-substituted benzenes such as alkyl- and halogeno-benzenes,phenolic ethers and some acetals are summarized in Table10,together with the respective partial rate factors.
3.Presented in Fig.4 is a Hammett plot of the meta and para values of the partial rate factors versus Brown's ¦Ò+ constants.Except for the methoxy group represented by a solid circle ,this plot produces a straight line with a ¦Ñ-value of -6.8 and a correlation coefficient r of 0.952.

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3.Presented in Fig.4 is a Hammett plot of the meta and para values of the partial rate factors versus Brown's ¦Ò+ constants.Except for the methoxy group represented by a solid circle ,this plot produces a straight line with a ¦Ñ-value of -6.8 and a correlation coefficient r of 0.952. ͼ4ËùʾµÄÊÇ·ÖËÙ¶ÈϵÊýÏà±È²¼ÀʦÒ+³£ÊýµÄmetaÖµºÍparaÖµµÄhammettͼ¡£³ýÁËһʵÐÄÔ²µã±íʾµÄ¼×Ñõ»ù£¬´ËͼÏÔʾΪ¦ÑֵΪ-6.8¡¢Ïà¹ØÏµÊýrΪ0.952µÄÖ±Ïß¡£
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shushen_jian(½ð±Ò+10, ·­ÒëEPI+1): ·­ÒëµÄ²»ÊǺÜרҵ 2011-05-25 17:09:04
1.The reaction time/product yield profiles of the nitration of benzene and alkyl derivatives all run linearly with a similar gradient over a wide range of reaction times until the substrates are completely consumed,showing no kinetic dependence of the reaction on the concentration of substrates.
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2Â¥2011-05-24 19:59:07
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2.The relative reactivities of monosubstituted benzenes such as alkyl and halogenobenzenes,phenolic ethers and some acetals are summarized in Table10,together with the respective partial rate factorsµ¥È¡´ú±½ÀàÖîÈçÍé»ùºÍ±´ú±½£¬·ÓÃѺÍijЩËõÈ©µÄÏà¶Ô·´Ó¦ÐÔ¼°¸÷×ԵķÖËÙ¶ÈϵÊý¸ÅÀ¨ÔÚ±í10ÖС£
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