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各位大哥帮忙翻译几短 化工英语 小弟在这拜谢了

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各位大哥帮忙翻译几短 化工英语 小弟在这拜谢了
Organosilicon derivatives of phosphorus,arsenic,antimony and bismuth
The chemistry of silylpolyphosphines is complicated however by not just oxygen and water sensitivity,but also by their tendency to couple and exchange if chloro substituted, and to extensively rearrange in the presence of strong base such as BuLi. Thus coupling 1 with 2 gives a series of mono and diphosphines as well as the expected tetraphosphine 29 (equation 44), while both 1 and 2 with t-BuLi gives monophosphine derivatives, together with the noricyclene cage phosphide 1 (equation 45).
While the triphosphine 1 exists in solution as an 8:3:1 mixture of isomers 30, 31 and 32, respectively, the derivative (R=Bu-t) only occurs as the threoerythro isomer 31 with a PNMR spectrum showing an ABC pattern. Hydrolysis gives a 2:1 mixture of threo—threo and threo—erythro isomers of 1.
The tetraphosphine 1 (33) results from 1 and rearranges on heating to cyclopentaphosphine and the diphosphine 1 (equation 46). In solution, however, it is stable but present as a mixture of four of four of the six possible isomers in the ratio of 11:7:9:3 for 34, 35, 36 and 37, respectively.
The analogous t-butyl tetraphosphine 1 results from (t-BuP)4 and potassiun, followed by silylation. It is stable to disproportionation below -30, occurring solely as the erythro-(d,l)-erythro isomer 35 with large coupling constants J(PP) due to the trans arrangement of neighbouring t-butyl groups. The crystal steucture shows the Si-P bonds to be 228.5 pm and the middle P—bond of 221.4 pm to be longer than the two other P-P bonds. Hydrolysis gives a 10:5:1 mixture of isomers equivalent to 37, 36 and 35 of H(Pbu-t)4H.
VI.CYCLOPOLYPHOSPHINES
A. Cyclotrlphosphlnes
Reacting (t-BuP)3,4 with potassium gives (t-BuP)2PK, which gives the silyl cyclotriphosphine 40 on silylation. Methanol ylelas the unstable cyclotriphosphine, which disproportionates to the cyclotetraphosphine 41 (equation 47).
Cyclotriphosphines 43 (R=t-Bu, Cl) result from the condensation of 1 with t-BuPCl2 or PCL3. Intially the intermediate tetraphosphine 42 is produced which gives the cyclotriphosphine on elimination of CH3SiCl (equation 48).
B. Cyclotetraphosphines
The five cyclotetraphosphines 1 have all been isolated as yellow crystalline solids. The first of the seriec, though not a Si-P compound, is included for completeness and was the first to be isolated. It is also formed from the partial chlorination of 1 (44) by hexachloroethane to give the first characterisable.
有机硅衍生物的磷,砷,锑,铋
化学silylpolyphosphines是一个复杂的,但由不只是氧气和水的敏感性,而且他们的倾向夫妇和交流,如果氯取代,并广泛地重新排列在驻留了坚实的基础,如buli .因此,耦合1 2给出了一系列的单声道和diphosphines以及预期tetraphosphine 29 (方程44 ) ,而1和第2款与T - buli给monophosphine衍生物,联同noricyclene笼磷化1 (方程45 ) .
而triphosphine一中存在的解决方案作为一个8时03分01秒的混合物同分异构体30 ,31及32条,分别衍生性( r =步吨)只发生在作为threoerythro同分异构体31日与pnmr频谱显示美国广播公司的模式.水解给出了2:1的混合物苏-苏和苏- erythro异构体的1
该tetraphosphine 1 ( 33 )结果从1和rearranges对加热cyclopentaphosphine和膦1 (方程46 ) .在解决方案,不过,这是稳定,但目前作为一个混合四的4 6个可能异构体,在11:7:9:3的比例为34 ,35 ,36和37 ,分别为.
类似的叔丁基tetraphosphine结果1从( T型bup ) 4和钾,其次是硅烷化.这是稳定歧化下面-30 ,发生纯粹是作为erythro - (四,升) - erythro异构体的35大偶合常数的J ( PP )的,由于跨安排邻近叔丁基团体.水晶steucture显示硅- P的债券必须228.5时至下午一时及中东的P -债券的221.4时至长于其他两个聚丙烯债券.水解给出了10点05分01秒的混合物同分异构体,相等于37 ,36和35的H ( pbu - T )的4小时.
vi.cyclopolyphosphines
答:cyclotrlphosphlnes
反应( T型bup ) 3,4与钾给( T型bup ) 2pk ,赋予含硅cyclotriphosphine 40对硅烷化.甲醇ylelas不稳定cyclotriphosphine ,disproportionates向cyclotetraphosphine第41条第(方程47 )
cyclotriphosphines 43性( r =吨布,氯)的结果,从凝结1与T - bupcl2或pcl3 .最初中间tetraphosphine 42制作赋予cyclotriphosphine关于消除ch3sicl (方程48 ) .
乙cyclotetraphosphines
五cyclotetraphosphines一都被孤立,作为黄色结晶固体.第一的seriec ,虽然不是一个硅磷化合物,是包括完整性和是第一个被孤立.这亦是形成了从局部氯化一( 44 )由hexachloroethane给第一characterisable