Synthesis and Crystal Structures of the Nickel(II) and [Tri(n-butyl)]tin(IV) Complexes with the New Sulfonamide Carboxylic Acid, 4-{(2-Nitrophenylsulfonamido)methyl}cyclohexanecarboxylic Acid

New metal complexes of sulfonamide: Synthesis, characterization, in‐vitro anticancer, anticholinesterase, antioxidant, and antibacterial studies

“…In this hydrogen bonding, N1 of sulfonamide acts as a hydrogen atom donor via H1N, and oxygen O 2 of sulfone moiety acts as acceptor following the symmetry code x − 1/2, −y + 1/2, −z (Figure 4). The torsion angles for the sulfonamide chain C2/C1/S1/N1, C1/S1/N1/C7, S1/N1/C7/C8, and N1/C7/ C8/C9 are 107.1(4) , −57.3(5) , −170.1(4) , and 66.6(7) , respectively, and it is different from the already published related molecules, [24] which depicts its different conformation in comparison with those molecules. Some parameters related to the crystalline structure of IX are tabulated in Tables 2-5.…”

“…The compound IX comprises polymeric structure where Sn (IV) cation is coordinated with five atoms and generates trigonal bipyramidal geometry. [24,[36][37][38] The coordinated three methyl groups occupy the corners of a triangle while the two oxygen atoms of carboxylic group from two different molecules occupy the pyramid corners (Figures 2 and 3). The bond distances for Sn-O coordinated bonds are unequal, that is, Sn1-O3 = 2.16 Å and Sn1 i -O4 = 2.44 Å (where symmetry code i = −1 − x, 1/2 + y, 1/2 − z).…”

“…The metal complexes of sulfonamide were prepared according to method of Danish et al, with some modification. [ 24 ] 4‐((4‐Bromophenylsulfonamido)methyl)benzoic acid (0.5 g, 13.3 mmol) was taken in 40 ml of distilled water. Equimolar sodium carbonate (70.4 mg, 13.3 mmol) was added in it, and it was stirred until neutral pH and solution became clear resulting sodium salt of sulfonamide.…”