Steric contributions to the solid-state structures of bis(phosphine) derivatives of molybdenum carbonyl. X-ray structural studies of cis-Mo(CO)4[PPh3-nMen]2 (n = 0, 1, 2)
however, this reaction requires an inert atmosphere. While W(CO)6 reacts rapidly with amines to give cis diamine adducts in high yields, direct reactions with phosphines are not so clean. Bis(phosphine) complexes are, however, cleanly formed when a small amount of piperidine is added to the reaction mixture, presumably via the bis(piperidine) complex cis-[W(CO)4(pip)2]. Reactions with Cr(CO)6 generally
Sonochemistry and sonocatalysis of metal carbonyls
作者:Kenneth S. Suslick、James W. Goodale、Paul F. Schubert、Hau H. Wang
DOI:10.1021/ja00356a014
日期:1983.9
67 The labeled precursor utilized in the present investigation, 1-deoxy-D-three [ l-2H3,5-2Hl]pentulose (6) was synthesized from 2,4-O-benzylidene-~-[4-~H~] threose, which is available from D[ l-2Hl]arabinitol by standard Reaction of the threose derivative with trideuteriomethylmagnesium iodide in ether then gave a mixture of protected, epimeric pentane tetrols, which was oxidized by the stannylene
然后提取硫胺素,并用亚硫酸氢盐裂解,以通常的方式得到 HET。将其转化为三氟乙酸酯用于 MS 检查。
Kinetics and mechanism of oxidative cleavage of the metal-metal bond in [M2(CO)10]2−, MCr, Mo and W
作者:Julia R. Phillips、William C. Trogler
DOI:10.1016/s0020-1693(00)92408-3
日期:1992.8
Electrochemically-induced metal-metal bond cleavage in [M2(CO)10]2− (MCr, Mo, W) has been studied using cyclic voltammetry, bulk electrolysis and double potential step chronocoulometry. Metal-metal bond homolysis, which occurs on oxidation in THF, can be modeled with an EC second-order disproportionation mechanism. The key step involves reaction of 2[M2(CO)10]·− to form [M2(CO)10]2− and M(CO)5(THF). Electron transfer
Exploring the coordination chemistry and reactivity of dialkylamino- and bis(dialkylamino)-phosphines in the coordination sphere of metals
作者:Philip W. Dyer、John Fawcett、Martin J. Hanton、Raymond D. W. Kemmitt、Ranbir Padda、Narendra Singh
DOI:10.1039/b208886j
日期:2003.12.20
[RhCl(CO)2}2] and elemental selenium have been undertaken and the products used to assess the phosphines' donor capabilities. Depending on the substituents at phosphorus, either trans-diphosphine or cis-dicarbonyl complexes result from reaction with [RhCl(CO)2}2]. The sterically demanding phosphine P(NPri2)2Ph (5) proved unreactive towards complexation with metals, although its selenide could be prepared and
一系列二烷基氨基和双(二烷基氨基)的配位化学-phosphines,R X P(NR' 2)3 - X (X = 1或2; R =氯,甲基中,Ph,C 6 ˚F 5 ; R' = Et,Pr i),1–7,已进行了研究,所得的6族四羰基和二氯化铂双(膦)复杂的特征。随后,与金属结合的PN键的反应性膦类被探测了。R“ OH(R” = Me,Et,烯丙基)双(dialkylaminodiphenylphosphine)与导致NR'的取代无水HCl气体络合物溶液2由OR“; 分离得到的P-烷氧基配合物,收率极高。酸化乙二醇 解决方案 氨基膦配合物得到相应的双(氯二苯基膦)衍生物。以下的反应的反式- [W(CO)4(P 净2 }博士2)2与]任HCl水溶液或H 2 SO 4,反式- [W(CO)4(P OH}博士2)2 ]可以被隔离为二氯甲烷溶剂化物,收率极高(81%)。双(双(二二烷基氨基
Reactivity of [Mo(CO)3(NCMe)3] towards pyrimidine-2-thiol (pymSH) and thiophenol (PhSH) in the presence of phosphine auxiliaries: Synthesis of mono- and dinuclear complexes bearing κ2 and µ,κ2-pymS coordination motifs
作者:Roknuzzaman、S.M. Tareque Abedin、Mohd. Rezaul Haque、Shishir Ghosh、Derek A. Tocher、Michael G. Richmond、Shariff E. Kabir
DOI:10.1016/j.poly.2019.02.023
日期:2019.5
products corresponding to dinuclear compounds, [Mo2(CO)6(μ,к1-pymS)2(μ,к2-dppm)] (7) and [Mo2(CO)4(μ,к2-pymS)2(к2-dppm)] (8). Products 6–8 are new and have been fully characterized in solution by IR and NMR spectroscopy, and by X-ray crystallography in the case of 6 and 7. The reaction of [Mo(CO)3(NCMe)3] with PhSH and dppm at 60 °C in MeCN was also examined to assess the effect of thiol on the product distribution