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北京石油化工学院2026年研究生招生接收调剂公告
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chinali5019

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Carbon-carbon bond activation reactions of asymmetric acetylene derivatives of the type L2Pt-(PhC三CR) were studied with 1,2-bis(diisopropylphosphino)ethane (dippe), 1,2-bis(di-tert-butyl-phosphino)ethane (dtbpe), and 1-iisopropylphosphino-2-dimethylaminoethane (dippdmae) chelates. (dippe)Pt(η2-PhC三CCH3)(1a), (dippe)Pt(η2-PhC三CCF3)(1b), and (dippe)Pt(η2-PhC三CC-(CH3)3)(1c) showed no thermal reactivity at 160 C, but 1b showed evidence for C-C cleavage to form (dippe)Pt(Ph)(C三CCF3) upon irradiation with UV light (>300 nm). In comparison, dtbpe analogues of thesemetal complexes, (dtbpe)Pt(η2-PhC三CCH3)(2a), (dtbpe)Pt(η2-PhC三CCF3)(2b),and (dtbpe)Pt(η2-PhC三CC(CH3)3)(2c), showed either C-HorC-C activation products upon photolysis. 2b produced (dtbpe)Pt(Ph)(C三CCF3), but 2a or 2c showed the formation of (dtbpe)Pt(D)(C6D5)(2D) by activation of the C6D6 solvent. Compounds 2a-c showed no thermal reactivity at 160 C. Two complexes with the hemilabile chelate dippdmae were synthesized and fully characterized, (dippdmae)Pt(η2-PhC三CCF3)(3b) and (dippdmae)Pt(η2-PhC三CC(CH3)3)(3c).C-C cleavage products of the type (L2)Pt(Ph)(C三CCF3) were observed only upon photolysis of compounds 1b, 2b, and 3b.不知哪位高手能把这段用方程式表示出来。急等啊!
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chinali5019(金币+1,VIP+0):翻译软件在这方面没用 11-29 10:42
碳碳键的不对称类型L2Pt活化反应乙炔衍生物(公约与肝癌三),研究了1,2 -双(diisopropylphosphino)乙烷(dippe),1,2双(二叔丁基膦)乙烷(dtbpe),和1 iisopropylphosphino - 2 -二甲基氨乙基(dippdmae)螯合物。 (dippe)铂(η2-肝癌三CCH3)(1A)款,(dippe)铂(η2-肝癌三CCF3)(1B)条,
和(dippe)铂(η2-肝癌三消委会(异丙醇)3)(集成电路)显示,在160 C否热反应,但1b中显示,消委会裂解形成(dippe)铂(电话)(丙三CCF3)有证据紫外线照射(“300纳米)。相比之下,dtbpe类似物的thesemetal物,(dtbpe)铂(η2-肝癌三CCH3)(甲),(dtbpe)铂(η2-肝癌三CCF3)(乙)和(dtbpe)铂(η2-肝癌三消委会(Ch3和)3)(2C型),显示为C -何
钢筋混凝土- C激活产品受光。 2B条生产(dtbpe)铂(电话)(丙三CCF3),但2A或2C型显示了(dtbpe)铂(丁)(C6D5)(二维由C6D6激活)溶剂的形成。化合物甲- ç显示,在160长与hemilabile两个螯合dippdmae物没有热反应,合成了充分的特点,(dippdmae)铂(η2-肝癌三CCF3)(3B)及(dippdmae)铂(η2-肝癌三消委会(Ch3和)3)(3C)款。消委会的类型分解产品(二级)铂(电话)(丙三CCF3)只有在观察化合物1b中,乙,和3B光
2楼2009-11-28 17:47:43
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1589006551

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chinali5019(金币+1,VIP+0):送你BB,虽然你就复制了一遍 12-5 09:39
Carbon-carbon bond activation reactions of asymmetric acetylene derivatives of the type L2Pt-(PhC三CR) were studied with 1,2-bis(diisopropylphosphino)ethane (dippe), 1,2-bis(di-tert-butyl-phosphino)ethane (dtbpe), and 1-iisopropylphosphino-2-dimethylaminoethane (dippdmae) chelates. (dippe)Pt(η2-PhC三CCH3)(1a), (dippe)Pt(η2-PhC三CCF3)(1b), and (dippe)Pt(η2-PhC三CC-(CH3)3)(1c) showed no thermal reactivity at 160 C, but 1b showed evidence for C-C cleavage to form (dippe)Pt(Ph)(C三CCF3) upon irradiation with UV light (>300 nm). In comparison, dtbpe analogues of thesemetal complexes, (dtbpe)Pt(η2-PhC三CCH3)(2a), (dtbpe)Pt(η2-PhC三CCF3)(2b),and (dtbpe)Pt(η2-PhC三CC(CH3)3)(2c), showed either C-HorC-C activation products upon photolysis. 2b produced (dtbpe)Pt(Ph)(C三CCF3), but 2a or 2c showed the formation of (dtbpe)Pt(D)(C6D5)(2D) by activation of the C6D6 solvent. Compounds 2a-c showed no thermal reactivity at 160 C. Two complexes with the hemilabile chelate dippdmae were synthesized and fully characterized, (dippdmae)Pt(η2-PhC三CCF3)(3b) and (dippdmae)Pt(η2-PhC三CC(CH3)3)(3c).C-C cleavage products of the type (L2)Pt(Ph)(C三CCF3) were observed only upon photolysis of compounds 1b, 2b, and 3b.
3楼2009-12-03 16:00:10
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1589006551

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chinali5019(金币+1,VIP+0):差太远了,已经解决 12-5 09:39
样品通过加热金属粉末和在alunina坩埚的红色磷粉末变紧密的混合物准备在高purityargon之下流程在一个rf激昂的熔炉的。反应是放热的和通常变得自立在700。c.The混合物为1h大约被射击在他们不和谐的熔点之下的一个温度100c完成反应; 生火温度从900c变化了到1300c.The样品为反应的完整性被审查了matallographically,并且为从900c变化的温度到1300c.The样品为反应的完整性被审查了matallographically和为从900c变化的temperatures到1300c.The样品被审查了matallographically为反应的完整性和为增加到搽粉的样品,被混合,然后变紧密,并且refired,直到一个本质上单阶产品获得了。
4楼2009-12-03 16:04:31
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