Synthesis, Structure, and Characterization of N-Ligated Tungsten Selenide Cluster Complexes W6Se8L6
Synthesis, Structure, and Characterization of N-Ligated Tungsten Selenide Cluster Complexes W6Se8L6
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DOI：
10.1021/ic00128a025
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发表时间：
1995-11
影响因子：
4.6
通讯作者：
Xiaobing Xie;R. Mccarley
中科院分区：
文献类型：
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作者：
Xiaobing Xie;R. Mccarley
通过W 6C 112与Na_2Se在N-二甲胺溶剂吡啶（py）和哌啶（pip）中的反应，得到了两个新的W_6Se_8原子簇单元.两种配合物的晶体都是从反应混合物中生长出来的。这些配合物的晶体学数据如下：WsSes（pip）6* 8 pip（1），立方晶系，143 d，a = 31.150（4）A，z = 12; W8（py）6*6py（2），三方晶系，R3，a = 19.654（2）A，c = 15.100（5）A，z = 3。w-w和W-Se键距在配合物间变化不大，平均值分别为2.691（1）和2.574（1）。光电子能谱给出特征钨结合能在30.8 eV（W 4f 712）和32.9 eV（W 4f 5/2）。红外光谱显示在243-254 cm-1处的强谱带，归属于TI，W-Se伸缩模。
Two new W6Se8 cluster units are reported via the reaction of w6c112 with Na2Se in the refluxing amine solvents pyridine (py) and piperidine (pip). Crystals for both complexes were grown from the reaction filtrates. Crystallographic data for these complexes are as follows: WsSes(pip)6*8pip (l), cubic, 143d, a = 31.150(4) A, z = 12; W8(py)6*6py (2), trigonal, R3, a = 19.654(2) A, c = 15.100(5) A, z = 3. w-w and W-Se bond distances show little variation among the complexes with average values of 2.691( 1) and 2.574( 1) A, respectively. Photoelectron spectra give characteristic tungsten binding energies at 30.8 eV (W 4f712) and 32.9 eV (W 4f5/2). IR spectra show strong bands at 243-254 cm-I, attributable to the TI , W-Se stretching modes.