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dwaww銀蟲 (小有名氣)
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[求助]
求英文翻譯(關(guān)于晶體結(jié)構(gòu)的分析)
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Since, complex (1) is chiral, it is the mixture of two crystalline forms P65 and P61. Both space groups were refined for comparison. The space group P61 gave better results. The R-factor is also better than the former hexagonal P65 . The absolute structure for complex (1) has been checked and determined with a Flack parameter of 0.003 (1) (see Table 1). The asymmetric unit of title complex (1) consists of only one type of Cu2+ ion which adopts an octahedral environment coordinating to four O-atoms and two N-atoms. Three of the O-atoms are water molecules and another from the pendant sulfate anion. Additionally, two crystallographically distinct N-atoms are from two trans 4,4’-bipy molecules (see Figs. 1 and 2). The 4,4’-bipy molecules in (1) play a crucial role in linking two adjacent Cu2+ atoms to form the 1D chains of {[Cu(4,4’-bipy)(H2O)3(SO4)]}n that align along the crystallographic c axes (see Figs. 1 and 3). The interchains void is occupied by the other two free water molecules, therefore resulting in the empirical formula {[Cu(4,4’-bipy)(SO4) (H2O)3] 2H2O}n. Unfortunately, the structure didn’t contain L-glutamic acid as planned and the actual role of L-glutamic acid in this work is ambiguous. |
鐵桿木蟲 (正式寫手)
有為青年
| 復(fù)合物(1)是手性的,是P65與P61兩種晶型的混合物。對這兩個空間群進行優(yōu)化、比較。P61的空間群結(jié)果較優(yōu)。P61的R值優(yōu)于六面體P65的R值。已經(jīng)使用Flack參數(shù)(0.003)測定復(fù)合物(1)的絕對構(gòu)型(見表1)。復(fù)合物(1)的非對稱單元只有一種類型的Cu2+,銅原子與4個O原子,2個N原子配位,形成一個八面體。其中3個O原子來源于水分子,第4個O原子來源于硫酸根陰離子。此外,兩個晶體學截然不同的N原子來源于4,4’-二聯(lián)分子(圖1,圖2)。4,4’-二聯(lián)分子在復(fù)合物(1)連接臨近Cu原子形成{[Cu(4,4’-bipy)(H2O)3(SO4)]}n 1D鏈中起著至關(guān)重要的作用.此1D鏈在晶體C軸處配對對齊(圖1,圖3)。另外兩分子游離水分子填滿鏈間空隙,從而形成了{[Cu(4,4’-bipy)(SO4) (H2O)3] 2H2O}n的經(jīng)驗表達式。然而不幸的是,結(jié)構(gòu)并不像預(yù)期那樣含有L-谷氨酸,L-谷氨酸在該研究中的實際作用還不清楚 |

鐵桿木蟲 (正式寫手)
有為青年
| 復(fù)合物(1)是手性的,是P65與P61兩種晶型的混合物。對這兩個空間群進行優(yōu)化、比較。P61的空間群結(jié)果較優(yōu)。P61的R值優(yōu)于六面體P65的R值。已經(jīng)使用Flack參數(shù)(0.003)測定復(fù)合物(1)的絕對構(gòu)型(見表1)。復(fù)合物(1)的非對稱單元只有一種類型的Cu2+,銅原子與4個O原子,2個N原子配位,形成一個八面體。其中3個O原子來源于水分子,第4個O原子來源于硫酸根陰離子。此外,兩個晶體學截然不同的N原子來源于4,4’-二聯(lián)分子(圖1,圖2)。4,4’-二聯(lián)分子在復(fù)合物(1)連接臨近Cu原子形成{[Cu(4,4’-bipy)(H2O)3(SO4)]}n 1D鏈中起著至關(guān)重要的作用.此1D鏈在晶體C軸處配對對齊(圖1,圖3)。另外兩分子游離水分子填滿鏈間空隙,從而形成了{[Cu(4,4’-bipy)(SO4) (H2O)3] 2H2O}n的經(jīng)驗表達式。然而不幸的是,結(jié)構(gòu)并不像預(yù)期那樣含有L-谷氨酸,L-谷氨酸在該研究中的實際作用還不清楚。 |

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