已经制备了四个四聚体(EtBeSR)4,R = Et,Pr i或·Bu t和(MeBeSBu t)4,最后一个是可以得到的唯一的甲基铍硫化物。据信四聚体具有基于Be 4 S 4立方体的结构。硫化合物通常比其氧类似物具有更高的歧化趋势,并且在与碱的反应中相差很大。鉴于(EtBeSEt)4和(EtBeSPr i)4不含醚的结晶溶剂,异丙基铍化合物(Pr i BeSEt,L)2只能以络合物的形式获得(例如,L = Et 2 O或py)。描述的其他配合物包括EtBeSBu t,OC 4 H 8,EtBeSBu t py,EtBeSBu t py 2和EtBeSBu t bipy,最后一个为橙色。四聚物(EtBeSEt)4由Et 2 Be和Be(SEt)2或Et 2 S 2形成。与[Be(OBu t)2 ] 3不同,二叔丁基硫化铍不溶于烃类,但形成吡啶和联吡啶配合物。
Phenylberyllium hydride–trimethylamine: some observations on alkylberyllium hydrides
作者:G. E. Coates、M. Tranah
DOI:10.1039/j19670000615
日期:——
Phenylberyllium hydride–trimethylamine, prepared from diphenylberyllium, beryllium chloride, sodium triethylborohydride, and trimethylamine, is a dimer [(Me3N)PhBeH]2 in benzene. The analogous trimethylphosphine complex dissociates in benzene solution.
Sodium hydridotrimethylboronate and its ether solvate. Study of hydridotrialkylboronates as reagents for the preparation of beryllium hydrides
作者:Norman A. Bell、Geoffrey E. Coates、J.Alan Heslop
DOI:10.1016/0022-328x(87)80062-1
日期:1987.8
Sodium hydridotrimethylborate is tetrameric in benzene solution and its etherate, (NaBMe3H)4OEt2 probably also retains its solid state cubane arrangement in benzene solution. Reactions of NaBR3H (R Me, Et) in a variety of ratios with halo and organoberyllium compounds have been studied. Exchange between Et2Be and NaBEt3H does not occur to any appreciable extent beyond the EtBeH stage and reaction
The beryllium derivatives of NNN′-trimethylethylenediamine, 2-methoxyethanol, 2-dimethylaminoethanol, and 2-dimethylaminoethanethiol are described. The first and last are monomeric in solution, the aminoethanol derivative is oligomeric (n ca. 10), and the methoxyethoxy-compound is insoluble and regarded as polymeric.
Mono‐<i>Ortho</i>‐Beryllated Carbodiphosphoranes: Synthesis, Structure, Bonding and Reactivity
作者:Magnus R. Buchner、Lukas K. Kreuzer、Lewis R. Thomas‐Hargreaves、Matthias Müller、Sergei I. Ivlev、Gernot Frenking、Sudip Pan
DOI:10.1002/chem.202400966
日期:——
Synopsis: Mono-ortho-beryllated carbodiphosphoranes, which feature a double dative Be=C bond, have been synthesised. The bonding situation in these complexes was elucidated computationally, while their reactivity was investigated experimentally.