A series of novel palladium(ii) acetylacetonato complexes bearing mesoionic carbenes (MICs) have been synthesized and characterized. The synthesis of the complexes of type (MIC)Pd(acac)I (MIC = 1-mesityl-3-methyl-4-phenyl-1,2,3-triazol-5-ylidene (1), 1,4-(2,4,6-methyl)-phenyl-3-methyl-1,2,3-triazol-5-ylidene (2), 1,4-(2,6-diisopropyl)-phenyl-3-methyl-1,2,3-triazol-5-ylidene (3); acac = acetylac...

يتضمن البحث تحضَير عدد من مشتقات6-bromo-2-phenylquinoline-4-carboxylic acid ، وقد تم تشخيصها بوساطة قياس درجة الانصهار والتحليل الكمي الدقيق للعناصر (C.H.N.S) وطيف الرنين النووي المغناطيسي للبروتون (1H-NMR) و تحليل طيف الأشعة تحت الحمراء (FT-IR) . ومن المركبات المحضرة
 1-تحضير المركب [A1] 6-bromo-2-phenylquinoline-4-carboxylic acid
 2-تحضير 6-bromo-2-phenylquinoline-4-carboxyl chloride...

Dy single-molecule magnets (SMMs), which have several potential uses in a variety of applications, such as quantum computing, were encapsulated in multi-walled carbon nanotubes (MWCNTs) by using a capillary method. Encapsulation was confirmed by using transmission electron microscopy (TEM). In alternating current magnetic measurements, the magnetic susceptibilities of the Dy acetylacetonato com...

Star-burst tetranuclear Ru(iii) complexes, Delta-(or Lambda-)[{Delta-(or Lambda-)-Ru(iii)(acac)(2)(taet)}(3)Ru(iii)] (acac = acetylacetonato; taet = tetraacetylethanato), were prepared and resolved into eight enantiomers on a column packed with an ion-exchange adduct of a clay and Delta-[Ru(ii)(phen)(3)](2+) (phen = 1,10-phenanthroline), demonstrating that the dual chiralities of the central an...

Vibrational circular dichroism (VCD) spectra were measured on the chloroform solutions of a series of mixed-ligand diamagnetic Co(III) complexes, [Co(tfac)(n)(acac)(3-n)] (n = 0-3, tfac = 1,1,1-trifluoro-2,4-pentanedionato; acac = acetylacetonato). Distinct differences were observed in the VCD spectra among the geometrical isomers of the same ligand composition. Such differentiation was hardly ...

Vibrational circular dichroism (VCD) spectroscopy was applied to study the stereochemical properties of a star-burst type tetranuclear Ru(III) complex, Δ-(or Λ-)[{Δ-(or Λ-)-Ru(III)(acac)(2)(taet)}(3)Ru(III)] (acac = acetylacetonato; taet = tetraacetylethanato). By comparing the VCD spectra of eight diastereomeric enantiomers, it was shown that the spectra reflected the homo- or hetero-chiral na...