Molecular design and the optimum synthetic route of the compounds with multi-pyrazole and its derivatives and the potential application in antibacterial agents
摘要:
Molecular design and efficient synthetic procedures have been developed for pyrazole and its derivatives with different linkers. In particular, twelve compounds with -I or -NO2 substituted groups on the pyrazole ring were synthesized for the first time. These compounds are characterized by element analysis, IR, HNMR, M.P. and X-ray diffraction. In addition, some compounds and corresponding complexes were also assayed in vitro for their ability to inhibit the growth of representative Gram-positive bacteria, Gram-negative bacteria and the fungus. It was worthwhile to note that some compounds could be used as potential antibacterial agents. (C) 2015 Elsevier Ltd. All rights reserved.
Triazine–polycarboxylic acid complexes: synthesis, structure and photocatalytic activity
作者:Zhi Nan Wang、Xuan Wang、Si Yue Wei、Ji Xiao Wang、Feng Ying Bai、Yong Heng Xing、Li Xian Sun
DOI:10.1039/c5nj00173k
日期:——
A series of supramolecular complexes with photocatalytic activity were constructed based on benzene–polycarboxylic acids and triazine derivatives.
一系列具有光催化活性的超分子复合物是基于苯-多羧酸和三嗪衍生物构建的。
Bromoperoxidase mimic as catalysts for oxidative bromination—synthesis, structures and properties of the diversified oxidation state of vanadium(iii, iv and v) complexes with pincer N-heterocycle ligands
作者:Chen Chen、Qiao Sun、Dong-Xue Ren、Rui Zhang、Feng-Ying Bai、Yong-Heng Xing、Zhan Shi
DOI:10.1039/c3ce40410b
日期:——
performed. Structural analyses reveal that the vanadium atom has a distorted trigonal bipyramidal geometry with a N3O2 donor set in 1; distorted octahedral geometry in 2, 4 and 5 with donor sets of N5O, N3O3 and N3O3, respectively; a distorted pentagonal bipyramidal geometry with a N3O4 donor set in 3. In addition, the five new complexes with abundant intro- and inter-hydrogen bonding interactions exhibited
Peroxo- and oxovanadium(<scp>iv</scp>) complexes with tridentate N-heterocycle ligands: synthesis, structure, and catalytic performance
作者:Xi Tong Ma、Na Xing、Zhi Dan Yan、Xiao Xi Zhang、Qiong Wu、Yong Heng Xing
DOI:10.1039/c4nj01525h
日期:——
Three peroxo- and oxovanadium(IV) complexes: [VO(O2)(bpz*eaT)·VO(C4H4O6)]·H2O (1), [VOSO4(bpz*eaT)]·C6H8O7 (2) (bpz*eaT = 2,4-bis(3,5-dimethyl-1H-pyrazol-1-yl)-6-diethylamino-1,3,5-triazine) and [VO(C12H8N2)(C9H7NO3)]·CH3OH·0.5H2O (3) were synthesized and characterized by elemental analysis, IR spectra, UV-Vis spectroscopy and single-crystal X-ray diffraction. In addition, the catalytic performances
三种过氧钒和氧钒钒(IV)配合物:[VO(O 2)(bpz * eaT)·VO(C 4 H 4 O 6)]·H 2 O(1),[ VOSO 4(bpz * eaT)]· C 6 H 8 O 7(2)(bpz * eaT = 2,4-双(3,5-二甲基-1 H-吡唑-1-基)-6-二乙基氨基-1,3,5-三嗪)和[ VO(C 12 H 8 N 2)(C 9 H 7 NO 3)]·CH 3 OH·0.5H 2 O(3合成)并通过元素分析,IR光谱,UV-Vis光谱和单晶X射线衍射表征。此外,还通过环己烷(Cy)氧化反应研究了配合物1-3及其起始原料(VO(acac)2和VOSO 4)的催化性能。发现配合物1表现出最高的催化活性(TON (环己醇) = 220,TON (环己酮) = 346,Conv。= 97.9%),其中H 2 O 2为氧化剂,HNO 3为氧化剂。 作为添加剂在24 h,40
Synthesis, structure, and surface photovoltage properties of a series of novel d7–d10 metal complexes with pincer N-heterocycle ligands
作者:Xuan Wang、Yong Heng Xing、Feng Ying Bai、Xin Yu Wang、Qing Lin Guan、Ya Nan Hou、Rui Zhang、Zhan Shi
DOI:10.1039/c3ra41459k
日期:——
(4) and Co(bpz*eaT)(N3) (5) (bpz*eaT: 2,4-bis(3,5-dimethyl-1H-pyrazol-1-yl)-6-diethylamino-1,3,5-triazine) were synthesized by the reaction of a metal salt (CuCl2·2H2O, NiCl2·6H2O, CoCl2·6H2O or Co(CH3COO)2·4H2O), pincer N-heterocyclic ligands and KSCN or NaN3 in either acetonitrile or a mixed solution at different temperatures. The structures of these complexes were characterized by elemental analysis
Experimental and theoretical evidence of unsupported Ag–Ag interactions in complexes with triazine-based ligands. Subtle effects of the symmetry of the triazine substituents
作者:M. Pilar Carranza、Blanca R. Manzano、Félix A. Jalón、Ana M. Rodríguez、Lucía Santos、Miquel Moreno
DOI:10.1039/c3nj00738c
日期:——
The synthesis of several dimeric silver compounds containing bis(pyrazol-1-yl)-6-(R)-s-triazine or bis(3,5-dimethylpyrazol-1-yl)-6-(R)-s-triazine ligands and coordinated triflate is described. The structures of two of the compounds have been determined by X-ray diffraction. Both derivatives show ligand-unsupported argentophilic contacts and different supramolecular interactions such as ÏâÏ stacking, CHâÏ or anionâÏ interactions. Hydrogen bonds are also established between the monomers. The relative orientation of the two monomers, which is mainly influenced by the formation of hydrogen bonds, reflects the symmetry of the R substituent of the triazine ring. Theoretical DFT calculations and Natural Bond Order (NBO) analysis of the two dimers further support the existence of the argentophilic interactions. Differences between the optimized and real structures can be mainly attributed to the underestimation of the ÏâÏ stacking interaction in the DFT studies.