Synthesis, characterization and applications of coordination polymers of Ln(III)

Abstract

The resin was synthesized by condensation of 2-hydroxy-4-ethoxybenzophenone with 1,4-butane diol in presence of polyphosphoric acid as a catalyst at 155• C for 10 h. The synthesized resin was used to get polychelates of 4f-block elements. The resin and its polychelates were characterized on the basis of elemental analyses, electronic spectra, magnetic susceptibilities, FTIR, NMR and thermogravimetric analyses. Morphological study of resin and polychelates were carried out by scanning electron microscope. The number average molecular weight (M n ) was determined using a vapor pressure osmometry method. The catalytic activity of selected polychelates was examined for organic synthesis. It is observed from the study that polychelates give excellent results. They were found to be efficient and effective catalysts and antimicrobial agents.

Synthesis and X‐ray structural characterization of a bidendate phosphine (dppe) palladium(II) complex and its application in Stille and Suzuki cross‐coupling reactions

“…High activity was observed for the catalyst and its reusability was tested in five consecutive cycles. [32] 3 P d N P s H 2 O, KOH, 100°C 720 95 [33] 4 Pd-MPTAT-1 NaOH, DMF-H 2 O (1:5), 85°C 480 95 [34] 5 NHC-Pd(II) complex THF, Cs 2 CO 3 , 80°C 720 88 [35] 6 N,N′-bis(2-pyridinecarboxamide)-1,2-benzene palladium complex H 2 O, K 2 CO 3 , 100°C 180 97 [36] 7 CA/Pd(0) H 2 O, K 2 CO 3 , 100°C 120 94 [37] 8 Pd/Au NPs EtOH-H 2 O, K 2 CO 3 , 80°C 1440 88 [38] 9 P A N I -Pd K 2 CO 3 , 1,4-dioxane-H 2 O (1:1), 95°C 240 91 [39] 10…”

Schiff base complex of palladium immobilized on magnetic nanoparticles: an efficient and recyclable nanocatalyst for CC coupling reactions

“…1 N H C -Pd(II) complex (1.0 mol%) Tetrahydrofuran, Cs 2 CO 3 , 80°C 720 88 [21] 2 Pd NPs (1.0 mol%) H 2 O, KOH, 100°C 720 95 [22] 3 CA/Pd(0) (0.5-2.0 mol%) H 2 O, K 2 CO 3 , 100°C 120 94 [23] 4 P d / A u N P s ( 4 . 0 m o l % ) E t O H -H 2 O, K 2 CO 3 , 80°C 1440 88 [24] 5 P d ( I I ) -NHC complex (1 mol%) DMF, Cs 2 CO 3 , 100°C 1440 99 [25] 6 N,N′-bis(2-pyridinecarboxamide)-1,2-benzene palladium complex (1 mol%) H 2 O, K 2 CO 3 , 100°C 180 97 [26] 7 L D H -Pd(0) (0.3 g) K 2 CO 3 , 1,4-dioxane-H 2 O (5:1), 80°C 600 96 [27] 8 P A N I -Pd (2.2 mol%) K 2 CO 3 , 1,4-dioxane-H 2 O (1:1), 95°C 240 91 [28] 9…”

Interactions with herring sperm DNA and biological studies of sparfloxacin drug‐based copper(II) compounds

“…[18][19][20][21][22][23][24] Over the last several years, ternary copper-quinolone complexes with biomolecules have been thoroughly studied. [25][26][27][28][29][30] Superoxide dismutases (SOD) are metalloenzymes which catalyze the dismutation of superoxide anion (O 2 À ) into hydrogen peroxide (H 2 O 2 ) and dioxygen. [31] Numerous diseases have been shown to involve overproduction of the superoxide radical, which results in growing interest in the search for mimics.…”