1701-93-5Relevant articles and documents
Occleshaw, V. J.
, (1937)
Kolthoff, I. M.,Lingane, J. J.
, p. 2126 (1935)
Bis(ethylenedithio)tetrathiafulvalene Cation Radical Salts Composed of Nonuniform Silver(I) Complex Polyanions
Yoshida, Yukihiro,Maesato, Mitsuhiko,Nakamura, Yuto,Ishikawa, Manabu,Yamochi, Hideki,Saito, Gunzi,Kishida, Hideo,Kitagawa, Hiroshi
, p. 16703 - 16711 (2019)
Rational control of the molecular arrangement in solids has been the subject of intense research for many years. In particular, the structural control of bis(ethylenedithio)tetrathiafulvalene (ET) radical cations has attracted special interest because of the primary effect on the electronic properties of the salts. In this study, we obtained the first ET cation radical salts formed with nonuniform silver(I) complex polyanions, which involve multiple kinds of openings in the anionic layer, by an electrocrystallization method. θ-(ET)2Ag2(CN)[N(CN)2]2 (1) with a θ-type ET packing motif contains double helical chains composed of AgN(CN)2, whereas α″-(ET)2Ag2(CN)(SCN)2 (2) with an α″-type ET packing motif contains zigzag ladders composed of AgSCN. Both silver(I)-based tube-like assemblies are connected to each other by a cyano group, affording nonuniform polyanionic structures. Although both salts show semiconducting behavior, there is a distinct difference in their spin geometry, with an S = 1/2 Heisenberg antiferromagnetic square lattice in 1, which is associated with charge disproportionation or dynamical charge fluctuation in the ET layers, and an S = 1/2 Heisenberg anisotropic triangular lattice in 2, which results in spin frustration in the ET layers. The ability of the nonuniform polymeric structures in the anionic layers to act as templates for various arrangements of ET radical cations is demonstrated.
Kohn, M.
, p. 557 - 558 (1949)
Spectrochemistry of Solutions. Part 14. Raman and Infrared Sectra of Thiocyanatosilver(I) Complexes in Some Non-aqueous Solutions
Gans, Peter,Gill, J. Bernard,Fearnley, D. Peter
, p. 1708 - 1713 (1981)
Infrared and Raman spectra have shown that, when Ag(1+) is complexed by SCN(1-), the species present and the equilibrium steps involved are solvent specific.In pyridine, complexation of Ag(1+) by SCN(1-) passes through (1+) and AgSCN to (1-).Only AgSCN and (1-) have been identified in tetrahydrofuran, dimethyl sulphoxide, and acetone, and only (1-) was found in propylene carbonate.Solutions in dimethylformamide and dimethylacetamide at high /ratios contain a small proportion of the SCN(1-) in the bridged complex (1-), but in trimethyl phosphate the SCN(1-) is approximately equally distributed between (1-) and (1-).The spectra of thiocyanatosilver(I) complexes in hexamethylphosphoramide differ from those of all the other solutions; no linear (1-) complex is found and two feasible explanations of the spectra are offered.No complex higher than (1-) occurs in any of these solutions.
The synthesis of rare earth metal-doped upconversion nanoparticles coated with d-glucose or 2-deoxy-d-glucose and their evaluation for diagnosis and therapy in cancer
Sharma, K. Shitaljit,Thoh, Maikho,Dubey, Akhil K.,Phadnis, Prasad P.,Sharma, Deepak,Sandur, Santosh K.,Vatsa, Rajesh K.
, p. 13834 - 13842 (2020/09/07)
Rare earth metal-doped upconversion nanoparticles (UCNPs) are emerging as a new class of biomedical imaging materials due to their higher energy anti-Stokes shift, high optical penetration depth and long term repetitive imaging. In the present study, upconversion nanoparticles based on NaYF4 doped with thulium (Tm) and ytterbium (Yb) were prepared via a thermolysis method using oleic acid as a capping agent and 1-octadecene as a solvent. The X-ray diffraction pattern of the synthesized nanoparticles was found to match the standard hexagonal phase. The nanoparticles were coated with silica using tetraethyl orthosilicate (TEOS) and in order to avoid agglomeration, IGEPAL CO-520 was used as the surfactant. The coatings of SiO2 over NaYF4 were confirmed by the TEM image and XRD pattern. NaYF4@SiO2 was further functionalized by the addition of (3-aminopropyl)trimethoxysilane (APTMS) followed by either d-glucose or 2-deoxy-d-glucose (2-DG). UCNPs-d-glucose and UNCPs-2DG were examined for cell viability (MCF-7 cells) by MTT assay. The cellular uptake of UCNPs in MCF-7 cells was seen in terms of emission of a blue light. Furthermore, the uptake rate of UCNPs coated with 2-deoxy-d-glucose was found to be much faster than that of UCNPs alone under d-glucose starved conditions. The functionalization of UCNPs with 2-deoxy-d-glucose (2-DG) not only increased the uptake of nanoparticles, but also blocked the glycolysis pathway resulting in the inhibition of tumor growth as 2-deoxy-d-glucose (2-DG) is mimicking the d-glucose. The results are indicative that these upconversion nanoparticles may find applications in bio-imaging, removal of tumor by precision surgery, therapy and targeted drug delivery. This journal is
NOVEL COMPOUND AND EPOXY RESIN COMPOSITION CONTAINING THE SAME
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Paragraph 0037, (2016/10/07)
PROBLEM TO BE SOLVED: To provide an epoxy resin composition excellent in storage stability and curability. SOLUTION: A compound represented by the general formula (I) is used as a curing agent for an epoxy resin. In the formula (I), R1 is a hydrocarbon group capable of containing a nitrogen atom and forming a cyclic structure capable of having a substitution, R2 represents a hydrogen atom, an alkyl group or an aryl group or can form an unsaturated bond together with R1, and R3 represents a hydrogen atom, an alkyl group or an aryl group. COPYRIGHT: (C)2016,JPOandINPIT
