Crystal structure and photoluminescence properties of a new CdIIcoordination polymercatena-poly[bis[4-bromo-2-({[2-(pyrrolidin-1-yl)ethyl]imino}methyl)phenolato-κ3N,N′,O]di-μ3-chlorido-di-μ2-chlorido-bis(methanol-κO)tricadmium(II)]

2016 ◽  
Vol 72 (5) ◽  
pp. 426-431 ◽  
Author(s):  
Yasemin Yahsi ◽  
Hatice Ozbek ◽  
Muhittin Aygun ◽  
Hulya Kara

Schiff base–metal complexes have been used widely as catalysts for many organic reactions, such as ring-opening polymerization and oxidation. In view of the importance of CdIIcoordination polymers and in an effort to enlarge the library of such complexes, the title novel polymeric CdIItridentate Schiff base complex, [Cd3(C13H16BrN2O)2Cl4(CH4O)2]n, has been synthesized and characterized by elemental analyses, UV and IR spectroscopies, and single-crystal X-ray diffraction. The complex crystallizes in the triclinicP\overline{1} space group with two symmetry-independent CdIIatoms, one of which lies on an inversion centre, and analysis of the crystal structure shows that both CdIIatoms are six-coordinated; the environment around one CdIIatom can be described as distorted octahedral, while that around the second CdIIatom is octahedral. The CdIIatoms are linked by chloride ligands to form a one-dimensional coordination polymer. The nonbonding intermolecular Cd...Cd distances are 3.7009 (4) and 4.3563 (5) Å. Furthermore, the photoluminescence properties of the complex have been investigated and it displays a strong red emission in the solid state at room temperature.

2018 ◽  
Vol 73 (5) ◽  
pp. 281-288
Author(s):  
Qing Zhao ◽  
Ying-Qi Pan ◽  
Xiao-Yan Li ◽  
Han Zhang ◽  
Wen-Kui Dong

AbstractA discrete heterotrinuclear complex [{Ni2LDy(OAc)3(CH3OH)}2] · 2CH3OH · 3CH2Cl2, with a naphthalenediol-based acyclic bis(salamo) ligand H4L, has been synthesized and structurally characterized using elemental analyses, IR, UV/Vis and fluorescence spectra and single crystal X-ray diffraction. The crystal structure shows two crystallographically independent but chemically identical molecules (molecules I and II). All the Ni(II) atoms are hexa-coordinated with slightly distorted octahedral geometries. The central Dy atoms are nona-coordinated with slightly distorted tricapped trigonal prism geometries. An infinite 3D supramolecular structure is formed via intermolecular hydrogen bonding and C–H…π interactions.


2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Amah Colette Benedicta Yuoh ◽  
Moise Ondoh Agwara ◽  
Divine Mbom Yufanyi ◽  
Mariam Aseng Conde ◽  
Rajamony Jagan ◽  
...  

A novel one-dimensional coordination polymer bis(2-aminopyridine)-μ-bis(dicyanamido) cobaltate(II) has been synthesized and characterized by elemental analyses and infrared and ultraviolet visible spectroscopies and the structure has been determined by single crystal X-ray diffraction. Co(II) ion in the complex is coordinated to two axial 2-aminopyridine ligands through the pyridine N-atom and four equatorial dicyanamide ligands to give a CoN6 slightly distorted octahedral coordination environment around the metal ion. The amino N-atom forms intrachain hydrogen bonds. Antimicrobial screening of the complex against eight pathogenic microorganisms (four bacteria and four fungi) isolated from humans, indicates that the complex is moderately active.


2021 ◽  
Vol 43 (1) ◽  
pp. 88-88
Author(s):  
Aliakbar Dehno Khalaji Aliakbar Dehno Khalaji ◽  
Michal Dusek Michal Dusek ◽  
Vaclav Eigner and Seyyed Javad Peyghoun Vaclav Eigner and Seyyed Javad Peyghoun

New mononuclear copper(I) Schiff base complex Cu((Cl-NO2-ba)2en)I(CH3CN) (1) containing a bidentate Schiff base ligand (Cl-NO2-ba)2en = 2,4-dichloro-5-nitro-benzylidene-1,2-diaminopropane, was prepared in an acetonitrile solution and characterized by elemental analyses (CHN), FT-IR and UV-Vis spectroscopy. Suitable dark-orange single crystals were obtained by slow evaporation of solvent at 5 and#186;C for several days. Crystal structure of the title compound 1 was determined by single-crystal X-ray diffraction. The complex 1 crystallizes in orthorhombic space group Pna21, a = 16.8634 (5) and#197;, b = 8.4460 (5) and#197;, c = 17.4786 (2) and#197;, V = 2489.45 (17) and#197;3 and Z = 4. In addition, the title compound 1 was used as new precursor for the synthesis of copper(II) oxide nanoparticles via solid state thermal decomposition. The as prepared CuO product was characterized by FT-IR, XRD and SEM.


2021 ◽  
Vol 43 (1) ◽  
pp. 88-88
Author(s):  
Aliakbar Dehno Khalaji Aliakbar Dehno Khalaji ◽  
Michal Dusek Michal Dusek ◽  
Vaclav Eigner and Seyyed Javad Peyghoun Vaclav Eigner and Seyyed Javad Peyghoun

New mononuclear copper(I) Schiff base complex Cu((Cl-NO2-ba)2en)I(CH3CN) (1) containing a bidentate Schiff base ligand (Cl-NO2-ba)2en = 2,4-dichloro-5-nitro-benzylidene-1,2-diaminopropane, was prepared in an acetonitrile solution and characterized by elemental analyses (CHN), FT-IR and UV-Vis spectroscopy. Suitable dark-orange single crystals were obtained by slow evaporation of solvent at 5 and#186;C for several days. Crystal structure of the title compound 1 was determined by single-crystal X-ray diffraction. The complex 1 crystallizes in orthorhombic space group Pna21, a = 16.8634 (5) and#197;, b = 8.4460 (5) and#197;, c = 17.4786 (2) and#197;, V = 2489.45 (17) and#197;3 and Z = 4. In addition, the title compound 1 was used as new precursor for the synthesis of copper(II) oxide nanoparticles via solid state thermal decomposition. The as prepared CuO product was characterized by FT-IR, XRD and SEM.


2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Huilu Wu ◽  
Jingkun Yuan ◽  
Ying Bai ◽  
Fan Kou ◽  
Fei Jia ◽  
...  

A novel complex of cadmium (II) picrate (pic) with V-shaped ligand bis(N-allylbenzimidazol-2-ylmethyl)benzylamine (babb), with composition [Cd(babb)2](pic)2, was synthesized and characterized by elemental analyses and electrical conductivity, IR, and UV/visible spectra. The crystal structure of the complex has been determined by the single-crystal X-ray diffraction. In the complex, the coordination sphere around Cd (II) is distorted octahedral, six nitrogen atoms involved in coordination afforded by two tridentate ligand babb. Moreover, The DNA-binding properties of the ligand babb and Cd (II) complex were investigated by spectrophotometric methods and viscosity measurements, and the results suggest that they bind to DNA via an intercalation binding mode, and the Cd (II) complex shows higher affinity than the ligand.


2021 ◽  
Vol 43 (1) ◽  
pp. 88-88
Author(s):  
Aliakbar Dehno Khalaji Aliakbar Dehno Khalaji ◽  
Michal Dusek Michal Dusek ◽  
Vaclav Eigner and Seyyed Javad Peyghoun Vaclav Eigner and Seyyed Javad Peyghoun

New mononuclear copper(I) Schiff base complex Cu((Cl-NO2-ba)2en)I(CH3CN) (1) containing a bidentate Schiff base ligand (Cl-NO2-ba)2en = 2,4-dichloro-5-nitro-benzylidene-1,2-diaminopropane, was prepared in an acetonitrile solution and characterized by elemental analyses (CHN), FT-IR and UV-Vis spectroscopy. Suitable dark-orange single crystals were obtained by slow evaporation of solvent at 5 and#186;C for several days. Crystal structure of the title compound 1 was determined by single-crystal X-ray diffraction. The complex 1 crystallizes in orthorhombic space group Pna21, a = 16.8634 (5) and#197;, b = 8.4460 (5) and#197;, c = 17.4786 (2) and#197;, V = 2489.45 (17) and#197;3 and Z = 4. In addition, the title compound 1 was used as new precursor for the synthesis of copper(II) oxide nanoparticles via solid state thermal decomposition. The as prepared CuO product was characterized by FT-IR, XRD and SEM.


2006 ◽  
Vol 62 (7) ◽  
pp. m1498-m1500 ◽  
Author(s):  
Zhong-Lu You ◽  
Jing-Yun Chi

In the title structure, [Ni(C11H15N2O)(C11H16N2O)]ClO4, there are two independent ion pairs in the asymmetric unit. In each cation, the NiII atom is six-coordinated in a slightly distorted octahedral geometry by two phenolate O atoms, two imine N atoms and two amine N atoms from two Schiff base ligands, in one of which the phenolate O atom is protonated. In the crystal structure, anions and cations are linked through intermolecular O—H...O, N—H...O and weak C—H...O hydrogen bonds, forming one-dimensional chains containing hydrogen-bonded cation dimers.


RSC Advances ◽  
2015 ◽  
Vol 5 (101) ◽  
pp. 82894-82905 ◽  
Author(s):  
Ali Ourari ◽  
Wassila Derafa ◽  
Djouhra Aggoun

This work describes the synthesis of a new unsymmetrical tetradentate copper(ii) Schiff base complex Cu(L)(Py)(ClO4) containing N3O donor atoms.


2017 ◽  
Vol 72 (1) ◽  
pp. 83-87 ◽  
Author(s):  
Gao-Feng Wang ◽  
Xiao Zhang ◽  
Zhao-Rong Liu ◽  
Yu-Chun Wang ◽  
Hong-Shi Jiang ◽  
...  

AbstractTwo complexes, {Mn(hfac)2(BIPMO)}n (1), {Cu(hfac)2(BIPMO)}n (2) [hfac=1,1,1,5,5,5-hexafluoro-pentane-2,4-dionato(–), BIPMO=bis(4-(1H-imidazol-1-yl)phenyl)methanone], with the V-shaped ligands were synthesized and characterized by infrared spectroscopy, elemental analyses, along with single-crystal X-ray diffraction analyses. The X-ray diffraction studies have shown that the metal ions in 1 and 2 are both six-coordinated to two nitrogen atoms of two BIPMO ligands and four oxygen atoms of two hfac ligands to form a distorted octahedral geometry. Each BIPMO ligand acts as a bridging ligand to link two adjacent metal(II) atoms to form a helical chain in the crystal structure.


2019 ◽  
Vol 75 (11) ◽  
pp. 1748-1752
Author(s):  
Ploy Assavajamroon ◽  
Filip Kielar ◽  
Kittipong Chainok ◽  
Nanthawat Wannarit

The new title one-dimensional CdII coordination polymer, [Cd(C10H10N2)2(μ1,3-N3)2] n , has been synthesized and structurally characterized by single-crystal X-ray diffraction. The asymmetric unit consists of a CdII ion, one azide and one 1-benzylimidazole (bzi) ligand. The CdII ion is located on an inversion centre and is surrounded in a distorted octahedral coordination sphere by six N atoms from four symmetry-related azide ligands and two symmetry-related bzi ligands. The CdII ions are linked by double azide bridging ligands within a μ1,3-N3 end-to-end (EE) coordination mode, leading to a one-dimensional linear structure extending parallel to [100]. The supramolecular framework is stabilized by the presence of weak C—H...N interactions, π–π stacking [centroid-to-centroid distance of 3.832 (2) Å] and C—H...π interactions between neighbouring chains.


Sign in / Sign up

Export Citation Format

Share Document