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1.
The synthesis of chiral oxazolidinedione derived bicalutamide analogs has been discussed. 相似文献
2.
Nair VA Mustafa SM Mohler ML Fisher SJ Dalton JT Miller DD 《Tetrahedron letters》2004,45(51):9475-9477
A series of optically active nonsteroidal selective androgen receptor modulators with structures analogous to bicalutamide was prepared by replacing the trifluoromethyl group with iodine and the sulfonyl linker by oxygen. 相似文献
3.
Poly(methyl methacrylate)-supportedβ-diketone-linked palladium complexes on refluxing with olefins at 70°C in methanol-water medium for 10 h afforded carbonyl
compounds. The course of the reaction was found to be influenced by the degree of cross-linking of the polymer matrix and
the structural environment of the ligand. The reaction is assumed to proceed through a hydroxy palladation intermediate. A
suitable mechanism is also suggested. 相似文献
4.
5.
John W.Grove 《数学物理学报(B辑英文版)》2010,30(2):563-594
This article describes mathematical models for phase separated mixtures of materials that are in pressure and velocity equilibrium but not necessarily temperature equilibrium. General conditions for constitutive models for such mixtures that exhibit a single mixture sound speed are discussed and specific examples are described. 相似文献
6.
Non-contact atomic force microscopy (AFM) was employed following emersion to examine Au nanoclusters deposited from aqueous mixtures of HF and 10−4 M KAu(CN)2 onto Si(111). As the HF concentration is increased, the growth rates both parallel and perpendicular to the substrate of the approximately oblate Au hemispheroids increase. AFM images were obtained for times at which previously reported in situ second harmonic generation signals from the interface reach a maximum. At the time when the second harmonic enhancement is maximized during deposition from 0.500 (5.00) M HF, the Au nanoclusters have an average diameter of 94 (109) nm and an average height of 3.6 (9.5) nm. These cluster diameters can be understood qualitatively by the shift of the plasmon resonance due to depolarization as the cluster size increases, causing the resonant second harmonic enhancement at 532 nm to pass through a maximum at cluster diameters in the range 90–110 nm. 相似文献
7.
A 1D zinc(II) coordination polymer with W-like pentanuclear secondary building blocks constructed by 2,6-bis[(3-methoxysalicylidene)hydrazinocarbonyl]pyridine (H4Bmshp) ligand, {[Zn5(Bmshp)(CH3COO)5Cl(H2O)3]·2H2O} n , was synthesized and characterized by elemental analysis, IR, X-ray diffraction, and thermogravimetric analyses. It has the highest nuclear unit constructed by one 2,6-pyridine-diacylhydrazone ligand so far. The luminescent property of the compound was studied. It shows an emission with a maximum at 522 nm upon excitation at 450 nm. 相似文献
8.
A. Sreekanth V. Suni Rohith P. John Munirathinam Nethaji M. R. Prathapachandra Kurup 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(6):m284-m286
The title compound, [Cu2(C17H17N4S)2Cl2], exhibits a dimeric structure related by a centre of symmetry. The monomers are linked to each other by the longest Cu—S apical distance observed to date among CuII square‐pyramidal complexes of N4‐substituted thiosemicarbazones. Each CuII atom deviates from the coordination square plane, which contains the pyridyl and imine N atoms, the thiolate S atom and the Cl− anion, towards the S atom of the adjacent monomer. The dimers pack in a zigzag manner through the crystal. 相似文献
9.
Suni V Prathapachandra Kurup MR Nethaji M 《Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy》2006,63(1):174-181
A new thiosemicarbazone, HL is synthesized from di-2-pyridyl ketone and 4-phenyl-3-thiosemicarbazide and structurally and spectrochemically characterized. 1H NMR, 13C NMR, COSY, HMQC and IR spectra of the compound are studied and the proton magnetic resonance spectrum reveals some unprecedented observations. The thione form is predominant in the solid state, as supported by the crystal structure and IR data, while a thiol-thione equilibrium is proposed in the solution state by NMR studies. The compound crystallizes into a monoclinic lattice with space group C2/c and the ZE conformation is exhibited by the thiosemicarbazone. Intra- and intermolecular hydrogen-bonding interactions give rise to a two-dimensional packing in the crystal lattice. 相似文献
10.
Ni(II) complexes (1–5) of di-2-pyridyl ketone N(4)-phenylthiosemicarbazone (HL) have been synthesized and spectrochemically characterized. Elemental analyses revealed a NiL2 · 2H2O stoichiometry for compound 1. However, the single crystals isolated revealed a composition NiL2 · 0.5(H2O)0.5(DMF). The compound crystallizes into a monoclinic lattice with the space group P21/n. Complexes 2, 3 and 4 are observed to show a 1:1:1 ratio of metal:thiosemicarbazone:gegenion, with the general formula NiLX · yH2O [X = NCS, y = 2 for 2; X = Cl, y = 3 for 3 and X = N3, y = 4.5 for 4]. Compound 5 is a dimer with a metal:thiosemicarbazone:gegenion ratio of 2:2:1, with the formula [Ni2L2(SO4)] · 4H2O. 相似文献