scholarly journals Synthesis, Characterization, and Crystal Structure of [Co4(CH3CO2)2L4]2[BPh4]4·0.5H2O, Where HL = 4-(Salicylaldiminato)antipyrine

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Ramadan M. El-mehdawi ◽  
Abdussalam N. EL-dewik ◽  
Mufida M. Ben-Younes ◽  
Fathia A. Treish ◽  
Ramadan G. Abuhmaiera ◽  
...  

The title complex was isolated as a red solid from the reaction of 4-(salicylaldiminato)antipyrine, HL, and cobalt (II) acetate in ethanol. The complex has been characterized by elemental analysis, FTIR, UV-Vis, and X-ray single crystal diffraction. Two crystallographically different cationic units, A and B, of the title complex are found. Both units are essentially isostructural; nevertheless, small differences exist between them. Both units contain four cobalt atoms arranged at the corners of distorted cubane-like core alternatively with phenoxy oxygen of the Schiff base. In both cases, one cobalt binds to three coordinated sites from the corresponding tridentate Schiff base ligand, and the fourth one was bonded by the acetate oxygen, and the fifth and the sixth donor sites come from the phenolate oxygen of another Schiff base ligand.

2021 ◽  
Author(s):  
SOUMYA SUNDAR MATI ◽  
Dr. SAUGATA KONAR ◽  
BOBY SAMAI

A zinc coordinated rare binuclear complex was synthesised and characterized by elemental analysis and single-crystal X-ray diffraction. Two mononuclear units formed by two Schiff base ligands 2-((2-(pyrimidin-2-yl)hydrazono)methyl)phenol (PHP) coordinated with...


2012 ◽  
Vol 424-425 ◽  
pp. 23-26
Author(s):  
Li Hua Wang

A aroylhydrazone Schiff-base ligand (1, 4-Bis(2’-formylphenyl)-1,4-dioxabutane isonicotinoylhydrazone) and its Zn (II) complex were synthesized by hydrothermal method. The ligand was characterized by IR spectrum, MS spectrum and X-ray single crystal diffraction analysis. The luminescent properties of the ligand and Zn (II) complex material have been investigated in solid and in organic solvents. The results show that the ligand has strong luminescent emission at ca. 454 nm and the fluorescence of Zn (II) complex is very weak.


2014 ◽  
Vol 934 ◽  
pp. 86-90
Author(s):  
Xiao Min Hao ◽  
Gang Chen ◽  
Chang Sheng Gu

A novel complex of [Ag (bib)(3-pySO3)] n (3-pySO3:3-pyridinesulfonate; bib 1, 4-bis (2-methyl-imidazol-1-yl) butane) was synthesized and characterized by elemental analysis, IR, X-ray single crystal diffraction. The title complex belongs to triclinic system with space group P-1, a=7.8030(16)Å, b=8.0070(16)Å, c=10.742(2)Å,α=84.64(3)°,β=82.33(3)°,γ=82.76(3)°, V=657.8(2)Å3, Z=2, Dc=1.894g/cm3, μ= 1.697mm-1, F(000)= 374. Final indices is R =0.0480, wR =0.1169. Thermal stability and luminescent property of compound have also been investigated.


RSC Advances ◽  
2019 ◽  
Vol 9 (71) ◽  
pp. 41737-41744 ◽  
Author(s):  
Yaning Guo ◽  
Xiaobing Hu ◽  
Xinli Zhang ◽  
Xiaohua Pu ◽  
Yue Wang

Reaction of a symmetric compartmental Schiff base ligand (HL) with copper(ii) salt in 2 : 1 M ratio in methanol gave rise to a mononuclear copper(ii) complex, which was characterized by single crystal X-ray diffraction studies.


2000 ◽  
Vol 3 (3) ◽  
pp. 105-106 ◽  
Author(s):  
Muhammad Yousaf ◽  
Qiancai Liu ◽  
Jiling Huang ◽  
Yanlong Qian* ◽  
Albert Sun-Chi Chan*

2015 ◽  
Vol 34 (1) ◽  
pp. 101
Author(s):  
Alparslan Karadogan ◽  
Ahmet Karadag ◽  
Veysel T. Yilmaz

A new nickel(II) saccharinate (sac) complex containing <em>N</em>,<em>N</em>′-bis(2-hydroxyethyl)ethylenediamine (bishydeten), [Ni(bishydeten)<sub>2</sub>](sac)<sub>2</sub>, has been synthesized and characterized by elemental analysis, FTIR and single crystal X-ray diffraction. The title complex consists of a [Ni(bishydeten)<sub>2</sub>]<sup>2+</sup> cation and two sac anions. In the complex cation, the nickel(II) ion is coordinated by two neutral bishydeten ligands, leading to a distorted octahedral NiN<sub>4</sub>O<sub>2</sub> coordination, while both sac anions remain outside the coordination sphere. In the crystal, the complex cations and sac anions are connected by an extensive network of N–H∙∙∙N, N–H∙∙∙O, O–H∙∙∙O and C–H∙∙∙O hydrogen bonds into a three-dimensional supramolecular lattice.


2011 ◽  
Vol 396-398 ◽  
pp. 959-962
Author(s):  
Yan Yang ◽  
Liu Ting Yan ◽  
Xiao Li ◽  
Rong Huan Qin ◽  
Wen Gui Duan

The Cobalt (II) Complex constructed with 5-nitroisophthalic acid and 2,2’-bibenzimidazole, [Co(H2bibim)3](5-nipa)•H2O (1), (H2bibim =2,2’-bibenzimidazole, 5-nipa=5-nitroisophthalic acid) have been synthesized by hydrothermal methods and structurally characterized by elemental analysis, IR and X-ray single crystal diffraction. Complex 1 possesses distorted CoN6 octahedrals linked by the H2bibim ligands in a bidentate chelating mode and the 5-nitroisophthalic acid groups act as counterions, and there exists a 2D supramolecular network linked by intermolecular O−H•••O and N−H•••O hydrogen-bonding interactions.


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