نتایج جستجو برای: AG4

تعداد نتایج: 111  

Journal: :Anti-cancer drugs 2015
Xian-Zhe Dong Ting-Ting Xie Xiao-Jiang Zhou Li-Hua Mu Xiao-Li Zheng Dai-Hong Guo Ping Liu Xiao-Yue Ge

3β-O-{α-L-Pyran rhamnose-(1→3)-[β-D-xylopyranose-(1→2)]-β-D-glucopyranose-(1→4)-[β-D-lucopyranose-(1→2)]-α-L-pyran arabinose}-cyclamiretin A (AG4) is a saponin component obtained from the Giantleaf Ardisia Rhizome (Rhizoma Ardisiae Gigantifoliae). The present study aimed to investigate the antitumor potential of AG4 and its possible mechanisms in human nasopharyngeal carcinoma cells (CNE). We e...

2010
Melike ÇEBİ KILIÇOĞLU İbrahim ÖZKOÇ

Rhizoctonia solani isolates obtained from common beans (Phaseolus vulgaris L.) were included in an AG4 anastomosis group in accordance with hyphal anastomosis. In the subgrouping of AG4 isolates, PCR-RFLP patterns in the rDNA-ITS were used. After obtaining the genomic DNA belonging to R. solani AG4, an approximately 700 bp amplification product of the ITS1-5.8S-ITS2 region was obtained with PCR...

Journal: :Dalton transactions 2016
Jian-Feng Wang Shi-Yuan Liu Chun-Yu Liu Zhi-Gang Ren Jian-Ping Lang

Reactions of a P-N hybrid ligand, N,N-bis(diphenylphosphanylmethyl)-3-aminopyridine (3-bdppmapy), with silver oxysalts including AgNO3, AgOAc, AgBz (Bz = benzoate) and AgSal (Sal = salicylate) under different reaction conditions give rise to seven coordination compounds {[Ag4(μ-η,η-NO3)2(μ-η,η(2)-NO3)2](3-bdppmapy)2}n (1), {[Ag4(μ-η,η(2)-NO3)4](3-bdppmapy)2}n (2), {[Ag2(μ-η(2)-OAc)(μ-η,η(2)-OAc...

Journal: :Physical chemistry chemical physics : PCCP 2016
Ngo Tuan Cuong Hue Minh Thi Nguyen My Phuong Pham-Ho Minh Tho Nguyen

The optical spectra in the UV-VIS region of the hydrated doubly charged tetramer Ag4(2+) and hydrated multiply charged hexamer Ag6(p+) silver clusters encapsulated inside the sodalite cavity of an LTA-type zeolite have been systematically predicted using DFT, TD-DFT and CASSCF/CASPT2 methods. The optical behaviour of the model hydrated clusters [Ag6(H2O)8(Si24H24O36)](p+) is very sensitive to t...

Journal: :Dalton transactions 2007
Konstantin V Domasevitch Pavlo V Solntsev Il'ya A Gural'skiy Harald Krautscheid Eduard B Rusanov Alexander N Chernega Judith A K Howard

Nitrogen donor tetradentate ligands 4,4'-bipyridazine (bpdz) and pyridazino[4,5-d]pyridazine (pp) were prepared by inverse electron demand Diels-Alder cycloaddition reactions of 1,2,4,5-tetrazine. Examination of their behaviour towards silver(I) ions revealed a special potential of the ligands for the design of 3D coordination frameworks involving characteristic polynuclear and polymeric silver...

2016
James S Wright Iñigo J Vitórica-Yrezábal Stephen P Thompson Lee Brammer

The coordination polymers [Ag4 (O2 CCF3 )4 (phen)3 ]⋅ phen⋅arene (1⋅phen⋅arene) (phen=phenazine; arene=toluene, p-xylene or benzene) have been synthesised from the solution phase in a series of arene solvents and crystallographically characterised. By contrast, analogous syntheses from o-xylene and m-xylene as the solvent yield the solvent-free coordination polymer [Ag4 (O2 CCF3 )4 (phen)2 ] (2...

2015
James S. Wright Iñigo J. Vitórica-Yrezábal Harry Adams Stephen P. Thompson Adrian H. Hill Lee Brammer

A family of one-dimensional coordination polymers, [Ag4(O2C(CF2)2CF3)4(phenazine)2(arene) n ]·m(arene), 1 (arene = toluene or xylene), have been synthesized and crystallographically characterized. Arene guest loss invokes structural transformations to yield a pair of polymorphic coordination polymers [Ag4(O2C(CF2)2CF3)4(phenazine)2], 2a and/or 2b , with one- and two-dimensional architectures, r...

Journal: :Dalton transactions 2014
Lei Zhang Xiaofei Kuang Xiaoyuan Wu Wenbin Yang Canzhong Lu

A novel three-dimensional metal-organic framework (MOF), Ag4(tpt)4{δ-[Mo8O26]}·1.5H2O (A) (tpt = 2,4,6-tris(4-pyridyl)-1,3,5-triazine), possesses a ths-type topology with the hinge deformation mode. The single-crystal X-ray diffraction study shows that A and the dehydrated phase Ag4(tpt)4{δ-[Mo8O26]} (B) display distinct anisotropic thermal expansion with expansion in the b direction but contra...

Journal: :Canadian Journal of Plant Science 2022

Root rot is a common disease in soybean (Glycine max) and field pea (Pisum sativum), which restrain increased production Canada. Sixty-seven isolates of Rhizoctonia were recovered from various diseased plants Alberta, Canada along with three Manitoba, According to their anastomosis behavior, 23 (32.9%) the identified as group (AG) 4 (AG4), 7 (10.0%) AG2-1, 10 (14.3%) AG2-2, AG5, 3 (4.3%) AG-E A...

Journal: :Chemical communications 2003
Michael D Irwin Hanan E Abdou Ahmed A Mohamed John P Fackler

The structures of the tetranuclear silver(I), [Ag4(hpp)4], and the dinuclear gold(II), [Au2(hpp)2Cl2], (hpp = 1,3,4,6,7,8-hexahydro-pyrimido[1,2-a]pyrimidinate) guanidinate-like bases are reported and show a silver-silver distance of 2.8614(6) A and a gold-gold distance of 2.4752(9) A, the shortest Au-Au bond heretofore reported.

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