57786-42-2Relevant academic research and scientific papers
Two coordination polymers with the ligand salicylamide: Synthesis, crystal structure and luminescent properties
Song, Xueqin,Xiao, Zhourong,Zhao, Mengmeng,Qian, Wenhui
, p. 1769 - 1775 (2014/08/05)
The semirigid exo-bidentate ligand 1, 4-bis{[(2′-picolylaminoformyl) phenoxyl]methyl}-2, 5-bismethylbenzene (L) was designed, synthesized, and used as building blocks for constructing luminescent lanthanide polymers. Two new lanthanide coordination polymers were characterized by elemental analysis, X-ray diffraction analysis, and IR spectroscopy. The coordination polymers exhibit the metal-to-ligand molar ratio of 1:1 and the semirigid exo-bidentate ligand bridges lanthanide nitrates forming a zigzag chain, which further interconnected to three dimensional supramolecular structure in aid of cooperative C-H...O hydrogen bonds. The luminescence properties of the europium(III) complex are discussed in detail. Copyright
Pentacoordinate silicon complexes with N-(2-pyridylmethyl)salicylamide as a dianionic (ONN′) tridentate chelator
Schwarz, Dana,Kroke, Edwin,Wagler, Joerg,Brendler, Erica
, p. 1768 - 1775,8 (2020/08/24)
The title compound, N-(2-pyridylmethyl)salicylamide (1), was synthesized by ester aminolysis of methyl salicylate and 2-picolylamine. In the presence of triethylamine as a supporting base, the salicylamide moiety reacts with the organodichlorosilanes RR'SiCl2 to form the desired six-membered heterocycles of the type RR'Si-O-(o-C6H4)-C(=O)N(pic), with pic being the 2-pyridylmethyl (i.e., 2-picolyl) moiety and RR′ = Me, Me (2a); Me, Ph (2b); Ph, Ph (2c); Bn, Bn (2d); All, Ph (2e) and Ph, H (2f). Despite the absence of notable ring strain release Lewis acidity (i.e., only a six-membered chelate is formed by the dianion, and smaller rings are not present in the compound), the poor electron withdrawal from silicon by its C- or H- substituents and the flexible methylene bridge between the salicylamide and the pyridine moiety, the pyridine N donor atom furnishes pentacoordinate silicon coordination spheres in all of these compounds 2a-2f. The coordination number of the silicon atom was confirmed by single-crystal X-ray diffraction analysis for the solid state and by 29Si NMR spectroscopy for the solution state. Copyright
