Synthesis, Crystal Structure and Electrochemical Studies of a Hydrazone Schiff Base Complex of Titanium(IV)

2009 ◽  
Vol 64 (4) ◽  
pp. 409-414 ◽  
Author(s):  
Hassan Hosseini Monfared ◽  
Majid Nazari ◽  
Peter Mayer ◽  
Mohammad-Ali Kamyabi ◽  
Andrea Erxleben ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Schiff Base Complex ◽  
Redox Process ◽  
Acetonitrile Solution ◽  
Monoclinic Space Group ◽  
Electrochemical Studies ◽  
Cyclic Voltammetric

The in situ formed hydrazone Schiff base ligand (E)-N´-(2-hydroxy-3-methoxybenzylidene)- benzohydrazide (L2−) reacts with bis(acetylacetonato)titanium(IV) oxide in methanol to a mononuclear [Ti(L)(OCH3)(acac)] complex which crystallizes in the monoclinic space group P21/c, a = 18.2786(13), b = 8.2609(5), c = 13.9008(10) Å , β = 96.809(3)° with Z = 4. Cyclic voltammetric experiments of the species in acetonitrile solution reveals a reversible peak at Eo´ = −0.768 V (vs. Ag/AgCl) relating to the TiIV/TiIII redox process.

scholarly journals Synthesis, Structural Characterization, and Electrochemical Studies of New Oxovanadium(V) Complexes Derived from 2-Furanoylhydrazon Derivatives

2013 ◽  
Vol 2013 ◽  
pp. 1-12
Author(s):  
Rahman Bikas ◽  
Hassan Hosseini-Monfared ◽  
Erwann Jeanneau ◽  
Behrouz Shaabani
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Oxygen Atom ◽  
Equatorial Plane ◽  
Crystal Structure Analysis ◽  
Electrochemical Studies ◽  
Cyclic Voltammetric ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Single Crystal Structure Analysis

Five monooxovanadium(V) complexes [VO(L1)(OCH3)(OHCH3)](1), [VO(L2)(OCH3)(OHCH3)](2), [VO(L3)(OCH3)(OHCH3)](3), [VO(L4)(OCH3)(OHCH3)](4), and [VO(L5)(OCH3)(OHCH3)](5)were synthesized and characterized by IR, NMR UV-Vis, and single-crystal structure analysis [H2L1=(E)-N′-((2-hydroxynaphthalen-1-yl)methylene)furan-2-carbohydrazide,H2L2=(E)-N′-(2-hydroxybenzylidene)furan-2-carbohydrazide, H2L3(E)-N′-(5-bromo-2-hydroxybenzylidene)furan-2-carbohydrazide,H2L4=(E)-N′-(2-hydroxy-5-nitrobenzylidene)furan-2-carbohydrazide,H2L5=(E)-N′-(2-hydroxy-5-iodobenzylidene)furan-2-carbohydrazide]. In all1–3structures the vanadium atom has a distorted octahedral coordination with the three meridional donor atoms from the Schiff base dianion (L1–3)2−and one methoxylato group occupying the sites of the equatorial plane. The oxo group and one methanol molecule occupy the apical sites. In the complexes1,2, and3the conformation of 2-furanyl oxygen atom relative to the carbohydrazide oxygen atom iss-anti,s-anti/s-syn, ands-syn at 293 K, respectively. Cyclic voltammetric experiments of the solution species1–5in DMSO revealed a quasi-reversible behavior.

Mononuclear Copper(I) Schiff Base Complex Cu((Cl-NO2-ba)2en)I(CH3CN): Synthesis and Crystal Structure

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
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Title Compound ◽  
Schiff Base Complex ◽  
Acetonitrile Solution ◽  
Orthorhombic Space Group ◽  
Base Complex ◽  
Vis Spectroscopy ◽  
Elemental Analyses ◽  
Ft Ir

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.

Mononuclear Copper(I) Schiff Base Complex Cu((Cl-NO2-ba)2en)I(CH3CN): Synthesis and Crystal Structure

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
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Title Compound ◽  
Schiff Base Complex ◽  
Acetonitrile Solution ◽  
Orthorhombic Space Group ◽  
Base Complex ◽  
Vis Spectroscopy ◽  
Elemental Analyses ◽  
Ft Ir

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.

Mononuclear Copper(I) Schiff Base Complex Cu((Cl-NO2-ba)2en)I(CH3CN): Synthesis and Crystal Structure

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
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Title Compound ◽  
Schiff Base Complex ◽  
Acetonitrile Solution ◽  
Orthorhombic Space Group ◽  
Base Complex ◽  
Vis Spectroscopy ◽  
Elemental Analyses ◽  
Ft Ir

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.

Crystal Structure and Magnetic Properties of a New Hetero-Dinuclear CuIIMnII Schiff Base Complex

2003 ◽  
Vol 58 (4) ◽  
pp. 271-277 ◽  
Author(s):  
Y. Elerman ◽  
A. Elmali ◽  
C. T. Zeyrek ◽  
I. Svoboda ◽  
H. Fuess
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Schiff Base ◽  
Schiff Base Complex ◽  
Antiferromagnetic Interaction ◽  
Monoclinic Space Group ◽  
Distorted Tetrahedron ◽  
Molar Magnetic Susceptibility ◽  
Schiff Base Ligands ◽  
Oxygen Atoms

Mn[Cu(L)(O2CMe)2] · H2O (L = N,N’-bis(2-hydroxy-3-methoxybenzylidene)-1,3-diaminopropane) was synthesized and the crystal structure determined. (C23H26CuMnN2O8).H2O, monoclinic, space group P21/c, a = 12.017(3), b = 8.217(3), c = 24.786(4) Å , β = 92.10(2)°, V = 2446(1) Å3, Z = 4. The crystal structure consists of ordered dinuclear units with CuII and MnII ions bridged by two oxygen atoms of the Schiff base ligand. The CuII coordination sphere is a slightly distorted square-plane formed by the N2O2 donor set of the Schiff base ligands. The average Cu-O and Cu-N distances are 1.920(1) and 1.957(4) Å , respectively. The coordination around the MnII ion is a distorted tetrahedron with the donor oxygen atoms of the Schiff base ligands and oxygen atoms of the acetate anions. The Cu ··· Mn separation is 3.327(4) Å . There is also one non-coordinating water molecule in the crystal structure. The χ and χT versus T plots, χ being the molar magnetic susceptibility per CuIIMnII unit and T the temperature, has been measured in the 4.9 - 301 K temperature range. The values of the interaction parameters are J = −28.3 cm−1, gMn = 2.01, gCu = 2.07. This indicates an intramolecular antiferromagnetic interaction between CuII and MnII ions.

scholarly journals The synthesis of a Cu(ii) Schiff base complex using a bidentate N2O2 donor ligand: crystal structure, photophysical properties, and antibacterial activities

RSC Advances ◽  
2019 ◽  
Vol 9 (71) ◽  
pp. 41737-41744 ◽  
Author(s):  
Yaning Guo ◽  
Xiaobing Hu ◽  
Xinli Zhang ◽  
Xiaohua Pu ◽  
Yue Wang
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Single Crystal ◽  
Schiff Base Ligand ◽  
Photophysical Properties ◽  
Schiff Base Complex ◽  
Antibacterial Activities ◽  
X Ray Diffraction ◽  
Donor Ligand ◽  
X Ray

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.

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