Sm(III)‐Bi(III) Heterometallic Complexes with Aminopolycarboxylate Ligand: Structure, Thermal Stability and Spectral Property

Abstract

Samnium(III)-bismuth(III) heterobimetallic complexes, SmBi(edta)(NO 3 ) 2 •7H 2 O (1) and SmBi(dtpa)(NO 3 )• 3.5H 2 O(2) (edta=ethylenediaminetetraacetate, dtpa=diethylenetriaminepentaacetate), were synthesized and characterized by means of X-ray single crystal diffraction, X-ray powder diffraction, elemental analysis, ICP, FT-IR spectra and thermal analysis. The structure analysis revealed that 1 is in crystalline and 2 is in non-crystal state. Complex 1 crystallizes in monoclinic, space group P2 (1) tween Bi(III) atoms and Sm(III) atoms result into infinite 3D network structure. Thermal decomposition of the two complexes proceeds in similar stages, i.e., dehydration, pyrolysis of ligand, and decomposition of salt, and the final residue is oxide. In addition, the spectral properties have been studied through FL spectra and UV-Vis DRS. The two complexes exhibit one broad band Bi 6s6p-6s 2 emission under UV excitation and the characteristic Sm 3+ ion 4 G 5/2 → 6 H J/2 (J＝5, 7, 9, 11) transitions under visible light excitation, respectively.

Synthesis, Structural Characterization, and Antibacterial Activity of Novel Erbium(III) Complex Containing Antimony

“…In continuation of our interest on the antimony(III) [41–43] and bismuth(III) [44, 45] complexes with aminopolycarboxylate ligands, we report herein a novel antimony-based heterometallic complex [Sb 2 (edta) 2 - μ 4 -Er(H 2 O) 4 ]NO 3 ·4H 2 O; its composition and crystal structure have been characterized by elemental analyses, FTIR spectrum, single crystal X-ray diffraction, and thermal analysis. The complex has been evaluated for its antimicrobial activities by agar diffusion method.…”

Solid-Liquid Reaction Synthesis and Characterization of Bioinorganic Complexes of Nicotinic Acid with Antimony(III) and Bismuth(III) Ion

“…A lot of solid bioinorganic complexes of the transition metal ions and various ligands had been synthesized. The complexes of antimony and bismuth ion were also reported [1][2][3][4][5][6][7][8][9]. Some complexes of antimony and bismuth can be used as the medicine.…”

Synthesis, Structure and Thermal Analysis of Zn(II)-Bi(III) Hetrometallic Complex with Ethylenediaminetetraacetate

“…oxygen atoms [O(1), O(5), O(4), O(7)] from one hexadentate-chelate edta4anion(Bi-N 0.2495(6) and 0.2453(6)˚nm, Bi-O 0.2320(3)-0.2433(3)˚nm), one bridged carboxylate oxygen atom[Bi-O(2)0.2778nm] from another edta 4anion in the same molecule and one bridged carboxylic oxygen atom from neighboring molecule[Bi-O(7A), 0.2774nm]. The bond angle O(7)-Bi(1)-O(4) of 166.96(12)° is larger than the total of the bond angles O(7)-Bi(1)-N(4) of 75.51(12)° and N(1)-Bi(1)-O(4) of 66.15(11). So there exists stereochemical activity of the lone pair from 6s 2 of Bi(Ⅲ) atom in molecules, which resulting into its coordination polyhedron is a slightly distorted square antiprism.…”