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机译:重金属PI复合物.2。 BIS-(1,2,4-三甲基苯))(I)四氟铝酸盐和-GALlate的合成,结构和热行为-构型对阳离子BIS(芳烃)配合物的结构和稳定性的影响[德语]
(1: a = 9.525(2) Angstrom, b = 10.903(2) Angstrom, c = 11.972(2) Angstrom, alpha = 102.39(2)degrees, beta = 90.29(1)degrees, gamma = 107.96(1)degrees at T = -90 +/- 1 degrees C; 2: a = 9.585(2) Angstrom, b = 10.923(2) Angstrom, c = 11.966(2) Angstrom, alpha = 102.18(2)degrees, beta = 90.66(2)degrees, gamma = 107.74(2)degrees at T = - 90 +/- 1 degrees C; Z = 2). In the solid state the compounds can be described as dimeric thallium(I) tetrachlorometallates with a skeleton similar to that of (TeI4)(4), shielded by four arenes coordinated in pairs at the thallium atoms. The complete 'molecules' have point group symmetry (1) over bar. According to DTA measurements, the compounds loose all the coordinated arenes simultaneously, 1 at 59 degrees C and 2 at 51 degrees C, yielding pure thallium( + 1) tetrachlorometallates. The different thermal stability, the mean Tl-C(arene) bond lengths and indirectly the corresponding Tl-Cl bond lengths show the thallium-arene pi-bonding to be significantly weaker in the gallate than in the aluminate 1. [References: 28]
中同型结晶(1:a = 9.525(2)埃,b = 10.903(2)埃,c = 11.972(2)埃,alpha = 102.39(2 )度,β= 90.29(1)度,γ= 107.96(1)度,在T = -90 +/- 1摄氏度; 2:a = 9.585(2)埃,b = 10.923(2)埃,c =在T =-90 +/- 1摄氏度; Z = 2)时,11.966(2)埃,α= 102.18(2)度,beta = 90.66(2)度,γ= 107.74(2)度。在固态状态下,该化合物可描述为四氯金属化的二聚I(I)四氯金属酸盐,其骨架与(TeI4)(4)相似,被在four原子上成对配位的四个芳烃所屏蔽。完整的“分子”在bar上具有点组对称性(1)。根据DTA测量,这些化合物同时释放所有配位的芳烃,在59摄氏度下为1,在51摄氏度下为2,产生纯的((+1)四氯金属化物。不同的热稳定性,平均T1-C(芳烃)键长度以及间接对应的T1-Cl键长度显示the没食子酸盐中的-芳烃pi键显着弱于铝酸盐1。[参考文献:28]
Thallium complexes; Bis(arene) complexes; Thallium-arene pi-bonding; Tetrachloroaluminates; Tetrachlorogallates; Crystal structure; Neutron-diffraction; Univalent gallium; Crystal-structure;
机译:重金属PI复合物.2。 BIS-(1,2,4-三甲基苯))(I)四氟铝酸盐和-GALlate的合成,结构和热行为-构型对阳离子BIS(芳烃)配合物的结构和稳定性的影响[德语]
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