Chloro-fac-tricarbonylrhenium(I) complexes of asymmetric azines derived from 6-acetyl-1,3,7-trimethylpteridine-2,4(1H,3H)-dione with hydrazine and aromatic aldehydes: Preparation, structural characterization and biological activity against several human tumor cell lines

Solid state characterization and theoretical study of non-linear optical properties of a Fluoro-N-Acylhydrazide derivative

“…Adjacent chains are 2D assembled (Fig 5c) by the formation of the C17−H17⋯π (π localized on C13 and C14) [d C17⋯C13 = 3.654(5) Å; d C17⋯C14 = 3.722(5) Å], C3−H3⋯π (π localized on C4) [d C3⋯C4 = 3.770(5) Å], C8−H8B⋯O1 [d C8⋯O1 = 3.576(4) Å], C6−H6⋯N2 [d C6⋯N2 = 3.545(4) Å], C10−H10⋯π (π localized on C20) [d C10⋯C20 = 3.633(5) Å] weak hydrogen bonds[56,58,72–76]. The 3D assembly is completed considering a weak hydrogen bond C−H⋯F[77–80] between C12−H12⋯F1 [d C12⋯F1 = 3.477(6) Å], which holds together the molecules along the [1] direction (Fig 5d), and the existence of these combined interactions supports the supramolecular assembly.…”

“…In recent decades, supramolecular chemistry and the understanding of the linear and non-linear optical properties found in crystal molecular assembly have emerged as an important research topic in the rational design of functional solids[1]. In the solid state context, N -Acylhydrazones are important systems to study in view of their conformational versatility and potential applications for polymers and for pharmaceutical, photographic and organic non-linear optic (NLO) materials[2].…”

Lanthanide(III) complexes with tridentate Schiff base ligand, antioxidant activity and X-ray crystal structures of the Nd(III) and Sm(III) complexes

“…19,20 Coordination compounds from this type of ligand have a variety of applications. Many results concerning their antibacterial, 21 antifungal, 22 anticancer 23 and antidepressant 24 activities have been described in the literature. This report presents the synthesis, characterization, and X-ray structures of neodymium(III) and samarium(III) complexes derived from 1-(pyrydin-2yl)-2-(pyridine-2-ylmethylene)hydrazine (HL).…”

Efficient and Eco-Friendly Synthesis of Fluorenone Azines by Using Sulphated Titania Acid Catalyst

“…Diimines (azines) are most required compounds; they are undergoing interesting reactions and applications [5]. Azine compounds have been used in medicinal and materials relevant applications such as anti-bacterial drugs [6], anti-malarial drugs [7] anti-fungal drugs [8], drug development [9], tumor growth inhibitors [10], optoelectronics [11], NLO [12] materials , light-control devices [13], organic semiconductors [14], tunable molecular devices [15]. Azines form polymers, via Crisscross addition polymerization [16].…”