Synthesis and structure of [Bi2(NtBu)4]2Li2·2THF; a bimetallic cubane fragment containing a [Bi2(NtBu)4]2− anion
作者:Andrew J. Edwards、Michael A. Beswick、Jane R. Galsworthy、Michael A. Paver、Paul R. Raithby、Moira-Ann Rennie、Christopher A. Russell、Kerry L. Verhorevoort、Dominic S. Wright
DOI:10.1016/0020-1693(95)04974-6
日期:1996.7
[Bi2Li2N4] cubane units in the solid state. Further association of these units into a structure akin to the previously characterised complex [Sb2(NCy)4]2Li4 (2), consisting of a cage of two interlocked ‘broken cubes’, is prevented by Lewis base solvation of Li. Solution NMR and cryoscopic studies of 2 show that the complex is involved in a dissociative equilibrium in which separate cubane units, similar
通过[(Me 2 N)Bi(μ- Nt Bu)] 2与[ t ]的原位反应制备了亚氨基-Bi络合物[Bi 2(N t Bu)4 ] Li 2 ·2THF(1)。在甲苯/ THF溶液中的溶液[BuNHLi]。该复合物的特征在于元素分析,固态红外光谱,溶液中的1 H NMR光谱以及低温(153 K)X射线衍射研究。复合物结晶在单斜空间群P 2 1 / n中,具有晶胞尺寸。1的分子由离散的[Bi 2Li 2 N 4 ]古巴单位处于固态。Li的路易斯碱溶剂化阻止了这些单元进一步缔合到类似于先前表征的复合物[Sb 2(NCy)4 ] 2 Li 4(2)的结构,该复合物由两个互锁的“破碎立方体”的笼子组成。溶液NMR和2的冷冻显微镜研究表明,该络合物参与了离解平衡,在其中形成了类似于1中确定的单独的古巴单元。
Polyhedral antimony(III) and bismuth(III) siloxanes: Synthesis, spectral studies, and structural characterization of [Sb(O3SiR)]4 and [Bi12(O3SiR)8(μ3-O)4Cl4(THF)8] (R=(2,6-iPr2C6H3)N(SiMe3))
作者:Umesh N. Nehete、Herbert W. Roesky、Vojtech Jancik、Aritra Pal、Jörg Magull
DOI:10.1016/j.ica.2005.12.005
日期:2007.3
crystal structural analyses. Compound 2 represents the first example of a structurallycharacterized cubic antimony(III) containing siloxane ligands, whereas compound 3 exhibits a new highly solublebismuth(III) cluster containing chloride and siloxane ligands. Hydrophobic groups, surrounding the central Si4O12Sb4 and Bi12Cl4O28Si8 cores, play an important role in the high solubility of compounds 2 and
<i>ortho</i>
‐Directed Metathetical Fluoride/Amide Exchange in (Pentafluorophenyl)amides
作者:Pavel L. Shutov、Sergey S. Karlov、Klaus Harms、Maxim V. Zabalov、Jörg Sundermeyer、Jörg Lorberth、Galina S. Zaitseva
DOI:10.1002/ejic.200700772
日期:2007.12
the products of intramolecular ortho-directed exchange of NMe2 and F substituents, are obtained from the reaction of 2 with 1 or 2 equiv. of 1, respectively. The reaction between Me3Sb(Hal)2 [Hal = Br (7) Cl, (8)] and 1 or 2 equiv. of lithium salt 4 gives the corresponding stable monoamides [Me3(Hal)SbN(C6F5)(2-C5H4N)}] [Hal = Br (17), Cl (18)] or bis(amide) [Me3SbN(C6F5)(2-C5H4N)}2] (19), respectively
Thermolysis of metal organicsingle sourceanddual source precursorsyielded phase-pure BixTeynanoparticles at low temperatures.
金属有机单源和双源前体的热解产生了低温下相纯的BixTey纳米颗粒。
Self-Assembly of Complementary Components Using a Tripodal Bismuth Compound: Pnictogen Bonding or Coordination Chemistry?
作者:Shiva Moaven、Brandon T. Watson、Thomas J. Polaske、Brian M. Karl、Daniel K. Unruh、Nathan P. Bowling、Anthony F. Cozzolino
DOI:10.1021/acs.inorgchem.1c01232
日期:2021.8.2
phenomenon is demonstrated using Bi((NC9H7)3CH3). The study reveals that Bi engages in stronger PnBs than the analogous Sb system. The results have been contrasted with Bi systems that form strong coordination bonds, and analysis of the electron density along the bond path reveals key differences. The solution behavior of these newly synthesized supramolecules were studied by PFGSE NMR spectroscopy and