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denjiapin

银虫 (小有名气)

[交流] 帮忙翻译几段英文(化工)

A golden block-like crystal of 1 with dimensions 0.408mm0.192mm0.117mm
was selected on a Bruker P4 diffractometer with graphite-monochromated Mo-Ka
radiation (¼0.71073A ˚ ) at 292K using the –2 scan technique. The data were
corrected for Lp and absorption effects. The crystal structure was solved using direct
methods with the SHELXS-97 program [15]. Subsequent difference Fourier syntheses
enabled all heavier atoms to be located. All hydrogen atoms were located from the
successive difference Fourier syntheses. The non-hydrogen atoms were finally refined
with anisotropic displacement parameters by full-matrix least-squares techniques [16].
The hydrogen atom positions were fixed geometrically at calculated distances and
allowed to ride on the parent carbon atoms. The same manipulation for 2 was
conducted as described above. Detailed information about the crystal data
and structure determination for both compounds are summarized in table 1.Their selected interatomic distances and bond angles are given in table 2. CCDC
NO.: 633035 (1), 633034 (2).
  3. Results and discussion
The IR spectra of both compounds display three strong absorptions at 1588(s), 1484(s),
1445(vs) cm1 for 1 and 1589(s), 1480(s), 1441(vs), cm1 for 2, due to the characteristic
as (COO) and s (COO) stretching modes of carboxylate groups [17]. There are broad
bands around 3438 cm1 observed in 1 and 2, suggesting water persists in both
compounds.
The one-dimensional structure of 1 was revealed by X-ray single-crystal structure
analysis. Crystallographic data of 1 (as shown in table 1) indicates that [Mg(L)
(4H2O)]n 1 belongs to a monoclinic system, space group P2(1)/c and Z¼4. Figure 1
presents the local coordination environment around magnesium as six-coordinate with
two monodentate carboxylate groups of different olsalazine ligands and four water
molecules. The coordination geometry can be best described as a distorted octahedron
with a plane constructed by O(3A), O1W, O2W and O3W and apical sites occupied by
O(4) and O4W with angle (O(4)–Mg(1)–O4W) 178.5. Each olsalazine in 1 is a double
monodentate ligand linking two Mg atoms resulting in a 1 D zig–zag linear structure.
All magnesium atoms stand in the vertex of the catenarian structure (as shown in
figure 2).
Totally different from 1, the crystal of [Ca(L)  4(H2O)] 2 belongs to a tetragonal
crystal system, chiral space group P4(3)2(1)2 and Z¼8. The calciums in 2 adoptpentagonal bipyramid coordination mode with one monodentate carboxylate (O3A),
one bidentate carboxylate (O5 and O6) of different olsalazine ligands and four water
molecules (as shown in figure 3). Olsalazine in 1 was a bidentate bridge, but in 2 is a
tridentate bridge linking two calcium atoms in a 1 D zig–zag linear structure (as shown
in figure 4).
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hyh4402031

金虫 (小有名气)

denjiapin(金币+4):谢谢支持 2010-05-01 20:55
sirljz:禁止直接工具翻译的帖子 2010-05-01 23:01
尺度(如果涉及到分形,这个可能要翻成维数)为 0.408mm0.192mm0.117mm
的1号金色棒状催化剂,使用Bruker P4 衍射仪运用石磨单频Mo-Ka幅射(frac14;0.71073A ˚ )在292K使用–2 扫描技术进行扫描。得到的数据通过LP(应该是液相的意思,记不清了)和吸附作用较正。催化剂的结构使用SHELXS-97 方法(这个词也可能解释成程序,根据你的上下文判断,下同)直接解析。随后,不同的Fourier合成方法将重的原子固定。所有的氢原子也在不同的Fourier合成中成功的固定。最后所有的非氢原子通过全矩阵最小二乘技术的各向异性取代参数改良。氢原子的位置通过几何距离的计算来确定,使其能吸吸附在母体碳原子上。2号催化剂运用上面描述的方法进行同样的处理。两者详细的催化和结构表征的数据全部列在表1中。原子间隔和键角的选择列在表2中。CCDC NO.: 633035 (1), 633034 (2).

3,结果和计论
两种组分的红外光谱中,1号在 1588(s), 1484(s),1445(vs) cm1二号在 1589(s), 1480(s), 1441(vs), cm1有三个强的吸收峰,相对于 .as(COO) 和.s(COO)的羟酸根的伸缩振动。 在3438 cm-1上有一个宽的吸收峰,可能是在两种化合物中存在水的原故。
1的结构通过X光单晶衍射来表征。1的单晶衍生数据(表1)表明[Mg(L)(4H2O)]n是单晶结构,空间构型是P2(1)/c and Z¼4. 图1可以看出六价镁和两个olsalazine ligands的羟酸根相连(the local coordination environment 不会译)与四个水分子相连。

译不下去了,不是学这方向的,不好的地方望虫友指教
2楼2010-05-01 12:36:12
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yinjuanchen

铁杆木虫 (著名写手)

★ ★
denjiapin(金币+10, 翻译EPI+1): 2010-05-01 20:53
denjiapin(金币+1): 2010-05-01 20:54
sirljz(金币+2):谢谢交流 2010-05-01 23:01
调整翻译顺序:
金黄色晶体1,使用Bruker P4 衍射仪运用石磨单频Mo-Ka幅射(frac14;0.71073A ˚ )在292K使用–2 扫描技术进行扫描,测得其尺寸为0.408mm0.192mm0.117mm,数据通过LP(也不太清楚)和吸附作用校正。使用SHELXS-97 程序中的直接方法对晶体结构进行解析,采用不同的Fourier合成方法将重原子和氢原子固定,所有的非氢原子通过全矩阵最小平方法的各向异性取代参数修正,根据计算的几何距离,使氢原子对称分布在在母体碳原子周围。晶体2运用上述方法进行同样的处理。两种晶体的晶体参数及结构表征数据见表1,部分原子间距及键角数据见表2。CCDC NO.: 633035 (1), 633034 (2).
3. 结果及讨论
两种晶体在红外光谱中都有三个明显的强吸收,1的吸收位置:1588(s), 1484(s),1445(vs) cm1,2的吸收位置:1589(s), 1480(s), 1441(vs), cm1,这是由于as(COO) 和.s(COO)的羟酸根的伸缩振动,两种化合物在3438 cm-1上有一个宽的吸收峰,这可能是因为化合物中均含有水。
通过X射线单晶分析,化合物1是1一维结构,1的晶体参数(见表1)表明[Mg(L)
(4H2O)]n是单斜构型,P2(1)/c 空间群( Z¼4不知道什么意思)。图1表明镁离子是六配位,其中有两个单齿羧基来自不同的奥沙拉嗪配体,另外有四个水分子于其配位,是一种扭曲的八面体构型,平面上为O(3A), O1W, O2W 和O3W ,,顶点O(4) 和O4W ,键角(O(4)–Mg(1)–O4W) 为 178.5°,1中每个奥沙拉嗪含有两个单齿基,连接着两个镁离子,形成一维Z字型链状结构。所有的镁离子都位于长链的顶点上(见图2)。
与1迥然不同的是,化合物2 [Ca(L)  4(H2O)] 2 是四面体构型,属P4(3)2(1)2 空间群(Z¼8.还是不明白),钙离子呈五角双锥构型, 一个单齿羧基(O3A),一个来自不同奥沙拉嗪配体的双齿羧酸配体 (O5 and O6)和四个水分子(如图3所示)。奥沙拉嗪在1中是双齿桥状配体,但在2中是三齿桥,每一个奥沙拉嗪连接着两个钙离子,形成一维Z型链状结构。
希望有助您的理解,同时期待更佳翻译!
BEST WISHES!
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3楼2010-05-01 15:36:25
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