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火箭穿屁屁木蟲(chóng) (正式寫(xiě)手)
地球球長(zhǎng)
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[求助]
請(qǐng)兄弟姐妹們幫忙潤(rùn)色一句話 冰天雪地落體跪求
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The absolute configuration (S) of the hydroxyl group was determined by comparing the specific rotation data ([α] +20.1°, MeOH) and the Cotton effects at 215 (–6.2), 283 (–2.9), 319 (–2.9) nm with those in the liteature ([α] –12.2°, MeOH) and the Cotton effect at 212 (+ 25.2), 236 (–18.2), 255 (–8.4), 277 (–1.5) and 298(–6.7) nm in the CD spectrum 我想表達(dá)的意思:化合物hydroxyl group的絕對(duì)構(gòu)型 是通過(guò)與文獻(xiàn)的比旋和CD相比較得來(lái)的。 我的化合物是正的 比旋 ([α] +20.1°, MeOH) 負(fù)的CD 215 (–6.2), 283 (–2.9), 319 (–2.9) 文獻(xiàn)的是 負(fù)的比旋光度 ([α] –12.2°, MeOH) ,正的CD 212 (+ 25.2), 236 (–18.2), 255 (–8.4), 277 (–1.5) and 298(–6.7) 最好句子中把數(shù)據(jù)都帶上 這樣有比較意義 是吧 我寫(xiě)的這個(gè)似乎容易引起誤會(huì) 請(qǐng)專家?guī)臀铱纯?小弟拜謝! |

版主 (文壇精英)
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The Absolute Stereochemistry of compound hydroxyl group was determined by comparing the specific rotation data ([α] +20.1°, MeOH) of the circular dichroism with literiture。Compound rotation ([α] +20.1 °, MeOH) was 215 (-6.2), 283 (-2.9), 319 (–2.9) while literiture rotation was ([α] -12.2 °, MeOH) was 212 (+ 25.2), 236 (-18.2), 255 (-8.4), 277 (-1.5) and 298 (-6.7 ).正負(fù)旋光不用翻譯,直接符合表示。the Cotton effects 可以換為rotation,看個(gè)人喜好! |

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