Vanadium (IV), (V) coordination compounds with 8-hydroxyquinoline derivative: Synthesis, structure and catalytic activity in the polymerization of ethylene
作者:Vladislav A. Tuskaev、Nikolay A. Kolosov、Dmitrii A. Kurmaev、Svetlana C. Gagieva、Victor N. Khrustalev、Nikolay S. Ikonnikov、Nikolay N. Efimov、Elena A. Ugolkova、Vadim V. Minin、Boris M. Bulychev
DOI:10.1016/j.jorganchem.2015.04.004
日期:2015.12
A series of oxovanadium (IV, V) complexes stabilized by [OON]2- type ligand – 7- (hexafluoro-2-hydroxypropane-2-yl)-8-hydroxyquinoline (2), have been synthesized in high yields; the structures were confirmed by NMR, EPR, and IR spectroscopy, mass spectrometry, X-ray diffraction and elemental analysis. Depending on reaction conditions di-, tetra- or hexanuclear complexes 3–5 were obtained. It was demonstrated
高产合成了一系列由[OON] 2-型配体– 7-(六氟-2-羟基丙烷-2-基)-8-羟基喹啉(2)稳定的氧钒(IV,V)配合物;通过NMR,EPR和IR光谱,质谱,X射线衍射和元素分析确认了结构。取决于反应条件二- ,四-或六核配合物3 - 5获得。已证明,在Et 2 AlCl / CCl 3 CO 2 Et的存在下,钒(V)络合物催化乙烯的聚合,其活性高达1000 kg PE(V of mol)-1 h -1 atm -1。
[EN] SELECTIVE CARBON-CARBON BOND CLEAVAGE BY EARTH ABUNDANT VANADIUM COMPOUNDS UNDER VISIBLE LIGHT PHOTOCATALYSIS<br/>[FR] CLIVAGE SÉLECTIF DES LIAISONS CARBONE-CARBONE PAR DES COMPOSÉS DE VANADIUM ABONDANTS SUR TERRE SOUS L'EFFET D'UNE PHOTOCATALYSE ACTIVÉE PAR UNE LUMIÈRE VISIBLE
申请人:UNIV NANYANG TECH
公开号:WO2016126207A1
公开(公告)日:2016-08-11
Provided herein a vanadium(V) complex of formula I, where R1 to R8 are as defined herein. Also provided herein are reactions making use of the vanadium(V) complex of formula I, such as selective sp3-sp3 carbon-carbon bond cleavage under visible light photocatalysis and photodegradation of lignin.
Reaction of [VO(OPr)3] with hexamethyldisylthiane in the presence of β-diketones
作者:M. N. Sokolov、A. V. Virovets、A. V. Rogachev、P. A. Abramov、V. P. Fedin
DOI:10.1134/s1070328413020085
日期:2013.2
mixedligand vanadium(III) complex of the composition [V2(Hfac)2(μ-OPr)]2 is formed with Hfac. In the presence of Dpm, the known vanadium(IV) complex [V2O2(Dpm)2(μ-OPr)2] is obtained in which two vanadyl groups VO2+ are linked by two bridging propoxy groups. The structures of all products are determined by X-ray diffraction analysis.
Vanadium(V) imido chlorides and n-propoxides — Towards a rational design of vanadium imido precatalysts for ethylene polymerization
作者:Anatoliy S. Kayda、Andrey V. Rumyantsev、Sergey V. Zubkevich、Pavel A. Zhizhko、Rina U. Takazova、Vladislav A. Tuskaev、Svetlana Ch. Gagieva、Mihail I. Buzin、Stanislav S. Shatokhin、Galina G. Nikiforova、Viktor G. Vasil'ev、Alexander A. Pavlov、Daniele Saracheno、Elizaveta K. Melnikova、Kasim F. Magomedov、Nikolay A. Kolosov、Boris M. Bulychev
DOI:10.1016/j.jorganchem.2020.121665
日期:2021.2
and elemental analysis. The solid-state structure of complex V(=NArOMe)(OnPr)3 was established using X-ray. Vanadium(V) imido chlorides and n-propoxides exhibited similar moderate catalytic activities (320–547 kgPE·mol(V)−1·h−1·atm−1). The maximum catalytic activity (547 kgPE·mol(V)−1·h−1·atm−1) was achieved for (adamantylimido)vanadium(V) n-propoxide. The molecular weights of the resulting polyethylenes
钒(V)亚氨基配合物广泛用于烯烃聚合和低聚反应。在本报告中,我们介绍了一系列在亚氨基片段上具有各种取代基的钒(V)亚氨基配合物的合成和乙烯聚合反应的研究结果。通过N-亚磺酰基胺与VOCl 3或VO(O n Pr)3的相互作用,可以几乎定量地制备所有络合物,并使用1 H,13 C,51 V NMR和元素分析对其进行表征。使用X射线建立了复合物V(= NAr OMe)(O n Pr)3的固态结构。钒(V)亚氨基氯化物和正丙醇盐表现出类似适度的催化活性(320-547千克PE ·摩尔(V)-1 · ħ -1 ·大气压-1)。对于(金刚烷酰亚胺基)钒(V)正丙醇,达到了最大催化活性(547 kg PE · mol(V)-1 · h -1 · atm -1)。所得聚乙烯的分子量较高(M v = 3.7-6.5 · 10 5道尔顿)为亚氨基正丙氧基络合物相比于相应的亚氨基氯化物(M v = 2.1–5