Triazolyl, Imidazolyl, and Carboxylic Acid Moieties in the Design of Molybdenum Trioxide Hybrids: Photophysical and Catalytic Behavior.

Triazolyl, Imidazolyl, and Carboxylic Acid Moieties in the Design of Molybdenum Trioxide Hybrids: Photophysical and Catalytic Behavior.
复制标题

三氧化钼杂化物设计中的三唑基、咪唑基和羧酸部分:光物理和催化行为

DOI:
10.1021/acs.inorgchem.6b02986
复制
发表时间:
2017
影响因子:
4.6
通讯作者:
I. S. Gonçalves
I. S. Gonçalves
中科院分区:
化学2区
文献类型:
--
作者:
A. B. Lysenko;G. A. Senchyk;K. V. Domasevitch;M. Kobalz;H. Krautscheid;J. Cichos;M. Karbowiak;P. Neves;A. A. Valente;I. S. Gonçalves

文献摘要

参考文献

被引文献

相似文献

合成了三种含1,2,4-三唑基给体的有机配体:(S)-4-(1-苯丙基)-1,2,4-三唑(trethbz)、4-(1,2,4-三唑-4-基)苯甲酸(trPhCO 2 H)和3-(1H-咪唑-4-基)-2-(1,2,4-三唑-4-基)丙酸(trhis),以评价它们在钼(VI)氧化物有机杂化物开发中的配位行为。合成并表征了四种配合物[Mo 2 O 6(trethbz)2]·H2O(1)、[Mo 4 O 12(trPhCO 2 H)2]·0.5H2O(2a)、[Mo 4 O 12(trPhCO 2 H)2]·H2O(2b)和[Mo 8 O25(trhis)2(trhisH)2]·2 H2O(3)。单官能团的tr-配体导致形成由顺式{MoO 4 N2}八面体通过共同的μ2-O顶点连接而成的锯齿形链[Mo 2 O 6(trethbz)2]。使用具有tr/-CO2 H功能的异源配体,可以在轴向位置提供由tr-链接钉合的角或边共享{MoO 5 N}多面体(2n 2b)的层状或带状结构,而− CO2 H基团保持不配位。作为一个额外的功能,them-杂环的存在促进了两性离子分子的形成,其中有一个质子化的咪唑基团(imH+)和一个带负电荷的−CO2-基团,而thetr-片段保持中性。在酸性水热条件下,有机配体通过[N-N]-trr和μ2-CO2-单元与钼原子结合,以质子化双齿或两性离子四齿形式(分别为trhisH+和trhis)存在。这导致了一个新的带负电荷的多钼酸盐{Mo 8 O25} n2 n的锯齿形亚拓扑基序(3)-由角和边共享的顺式-{MoO 4 N2}和{MoO 6}八面体组成,而四齿的两性离子簇物种将这些链连接成一个2D网络。化合物的电子光谱显示出与半导体行为一致的光学带隙。以顺式环辛烯和反式β-甲基苯乙烯为手性和前手性烯烃,与叔丁基过氧化氢的环氧化反应为模型反应,考察了该类化合物的催化性能。研究了性能最好的催化剂(1)用于其它烯烃的环氧化,包括生物质衍生的油酸甲酯、亚油酸甲酯和前手性烯。
Three organic ligands bearing 1,2,4-triazolyl donor moieties, (S)-4-(1-phenylpropyl)-1,2,4-triazole (trethbz), 4-(1,2,4-triazol-4-yl)benzoic acid (trPhCO2H), and 3-(1H-imidazol-4-yl)-2-(1,2,4-triazol-4-yl)propionic acid (trhis), were prepared to evaluate their coordination behavior in the development of molybdenum(VI) oxide organic hybrids. Four compounds, [Mo2O6(trethbz)2]·H2O (1), [Mo4O12(trPhCO2H)2]·0.5H2O (2a), [Mo4O12(trPhCO2H)2]·H2O (2b), and [Mo8O25(trhis)2(trhisH)2]·2H2O (3), were synthesized and characterized. The monofunctionaltr-ligand resulted in the formation of a zigzag chain [Mo2O6(trethbz)2] built up fromcis-{MoO4N2} octahedra united through common μ2-O vertices. Employing the heterodonor ligand withtr/–CO2Hfunctions afforded either layer or ribbon structures of corner- or edge-sharing {MoO5N} polyhedra (2aor2b) stapled bytr-links in axial positions, whereas −CO2H groups remained uncoordinated. The presence of theim-heterocycle as an extra function intrhisfacilitated formation of zwitterionic molecules with a protonated imidazolium group (imH+) and a negatively charged −CO2–group, whereas thetr-fragment was left neutral. Under the acidic hydrothermal conditions used, the organic ligand binds to molybdenum atoms either through [N–N]-tror through both [N–N]-trand μ2-CO2–units, which occur in protonated bidentate or zwitterionic tetradentate forms (trhisH+andtrhis, respectively). This leads to a new zigzag subtopological motif (3) of negatively charged polyoxomolybdate {Mo8O25}n2n–consisting of corner- and edge-sharingcis-{MoO4N2} and {MoO6} octahedra, while the tetradentate zwitterrionictrhisspecies connect these chains into a 2D net. Electronic spectra of the compounds showed optical gaps consistent with semiconducting behavior. The compounds were investigated as epoxidation catalysts via the model reactions of achiral and prochiral olefins (cis-cyclooctene andtrans-β-methylstyrene) withtert-butylhydroperoxide. The best-performing catalyst (1) was explored for the epoxidation of other olefins, including biomass-derived methyl oleate, methyl linoleate, and prochiraldl-limonene.
手性阳离子 [Cp′Mo(CO)2(NCMe)]+ 物质 - H2O2 和叔丁基过氧化氢烯烃环氧化反应的催化剂前体
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者:
P. Reis;C. Gamelas;José A. Brito;Nathalie Saffon;M. Gómez;B. Royo
通讯作者: B. Royo
一种由吡啶-4-羧基配体桥接的新型一维氧化钼带:[(C6H4NO2)Mo2O5OH]
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
W. You;Xin Guo;Xiao;Cui;Lancui Zhang;Zhengang Sun
通讯作者: Zhengang Sun
多金属氧酸盐化学:一些最新趋势
DOI: 10.1142/8749
发表时间: 2013
影响因子: 2.7
作者:
F. Sécheresse
通讯作者: F. Sécheresse
三种基于钼(VI)氧化物的新型开放框架的水热组装和晶体结构
DOI: --
发表时间: 1999
期刊:
影响因子: --
作者:
Yan Xu;Jianjiang Lu;N. Goh
通讯作者: N. Goh
DOI: --
发表时间: 1981
期刊:
影响因子: --
作者:
Jack W. Johnson;A. Jacobson;S. Rich;J. Brody
通讯作者: J. Brody