Synthesis, characterization and corrosion inhibition property of nickel(II) and copper(II) complexes with some acylhydrazine Schiff bases

Synthesis, Characterisation and Antimicrobial Activity of Dimeric and Monomeric Copper(II)-Schiff base Complexes

“…. The  value of complex-4 is within this range in both solvents, which reinforces a structural arrangement of a dimeric square planar geometry in solution [16,17,[22][23][24].…”

“…In addition, the non-electrolyte properties of them in methanol support the preservation of the original structures in solution, regardless of the coordinating property of DMSO [17]. The most significant UV-VIS bands of the Schiff bases and the corresponding complexes are showed in Table 1.…”

“…At the low-frequency, novel bands in the region 530 cm -1 were assigned to the wagging vibrational band of coordinated water in complex-1, 2 and 3; complex-4 did not show bands correlated to this vibrational mode [12,13,15,16]. The Cu-O bond, formed by the loss of hydrochloric acid in complex-1 and 3, and the Cu-N bond of all these complexes showed vibrational stretching in the region of 510 cm -1 and 472 cm -1 respectively [12,13,15,17]. Complex-1 and 3 also showed two bands associated with the bridging stretching modes of CuCl bonds, contrasting with one band for complex-2 and three ones for complex-4 [13,18].…”

Synthesis, Characterization, In Vitro Anti-diabetic, Antibacterial and Anticorrosive Activity of Some Cr(III) Complexes of Schiff Bases Derived from Isoniazid

“…The weight loss was calculated as the difference in weight of the specimen before and after immersion in corrosion media. In all the above measurements, three close values were considered, and their average values are reported 21 . The corrosion rate (CR) in mg cm -2 h 1 was calculated from the following equation:…”

Synthesis of homoallylic amines and acylhydrazides by tin powder‐promoted multicomponent one‐pot allylation reactions

“…[61] In our on-going studies, we found that acylhydrazines could replace amines in a similar reaction using water as solvent. In particular, acylhydrazines could react not only with aldehydes but also with less reactive ketones to afford N′-homoallylic hydrazides, which are relatively new scaffolds found in a wide variety of biologically active molecules, [62][63][64] and also show potential applications in material science (Scheme 1). [65][66][67][68][69] Herein, we report our results concerning these one-pot allylation reactions in water.…”