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alexwang0521

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[求助] 求翻译一部分化学相关的英文文献 能翻译多少是多少

Cyanamide has been found to be a substrate of Mo– and V–nitrogenases ; it can
be reduced by these enzymes to CH4 ,CH3NH2 , and NH3.[10]
It can also be hydrolyzed by cyanamide hydratase, which is a Zn-containing enzyme.[11] These enzymatic reactions most likely involve binding of cyanamide or its bases to a metal center ; hence study of the binding and reactivity of coordi-nated cyanamide is of additional interest. The reaction of the dialkyl cyanamido complexes [(NH3)5CoIIINCN(C3)23 +and cis-or trans-[PtIICl2(NCNR)2](R= Me2,Et2,C5H 10) with NH3 to generate the corresponding guanidine com-plexes has been reported.[12, 13]                    
Meyer and co-workers have developed a novel synthesis of OsIV=NC Nthatbears2,2’ :6 ’ ,2 ’’ -terpyridine (tpy) and 2,2’ -bipyridine (bpy) ligands by direct addition of CN
toOsVI N. [14]  The Nb of OsIV =NC  N exhibits both nucleo-philic and electrophilic reactivity. It reacts readily with vari-ous electrophiles such as H+,Et3O+,CH3I, and
(CH3CO)2O; and it also reacts with PPh3 and alkenes (Scheme 1).[14–16]
Similar reaction with electrophiles has also been reported for trans-[MoIV(NCN)2(dppe)2] (dppe = 1,2-bis(diphenylphosphino)ethane)
不解释为什么受伤的总是我
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电分析化学

金虫 (正式写手)

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alexwang0521: 金币+15, 翻译EPI+1, ★★★很有帮助 2012-04-27 12:14:35
已发现氰胺能作为钼和V-固氮酶的底物,它能被这些酶还原为CH4 ,CH3NH2和 NH3。它同时也能被氰酰胺水合酶(一种含锌的酶)催化水解。这些酶催化反应大多可能涉及氰胺的结合或以金属中心为它的基础;因此,研究其结合和配位反应活性氰胺是我们额外感兴趣的事。二烷基氰胺复合物[(NH3)5CoIIINCN(C3)23+及cis-or trans-[PtIICl2(NCNR)2](R= Me2,Et2,C5H 10)与NH3反应生成相应的胍复合物已有报道。Meyer与其同事已建立了一种新的合成OsIV=NC 的方法 ,2’ ,6 ’ ,2 ’’位的三联吡啶及2,2’ -二吡啶配体通过直接将CN加到OsVI N中。The Nb of OsIV =NC N 都显示核苷酸亲水和亲电反应活性。它容易与各种亲电试剂如H+,Et3O+,CH3I, 及(CH3CO)2O反应,它也能与三苯基膦及烯烃(表1)。据报道trans-[MoIV(NCN)2(dppe)2](dppe = 1,2 - 二(二苯基膦)乙烷)能与亲电试剂发生类似的反应。
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