Coordination control of a semicarbazide Schiff base ligand for spontaneous aggregation of a Ni2Ln2 cubane family: influence of ligand arms and carboxylate bridges on the organization of the magnetic core

2020 ◽  
Vol 44 (12) ◽  
pp. 4812-4821
Author(s):  
Mousumi Biswas ◽  
E. Carolina Sañudo ◽  
Jordi Cirera ◽  
Debashis Ray
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Magnetic Core ◽  
Family Influence ◽  
Coordination Control ◽  
The Core ◽  
New Family ◽  
Spontaneous Aggregation ◽  
Weak Ferromagnetic

A new family of tetranuclear [Ni2Ln2O4] cubane complexes has been assembled from carbazido ligand by altering the 4f ions without changing the core topology, which provided weak ferromagnetic and antiferromagnetic interactions.

Mononuclear lanthanide complexes assembled from a tridentate NNO donor ligand: design of a DyIII single-ion magnet

2019 ◽  
Vol 48 (15) ◽  
pp. 4857-4866 ◽  
Author(s):  
Pankaj Kalita ◽  
Amit Malakar ◽  
Joydeb Goura ◽  
Subhashree Nayak ◽  
Juan Manuel Herrera ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Lanthanide Complexes ◽  
Ligand Design ◽  
Donor Ligand ◽  
New Family ◽  
Tridentate Schiff Base

A new family of mononuclear LnIII complexes were synthesized by utilizing a tridentate Schiff base ligand. SIM behaviour is seen in the DyIII analogue (diluted) with Ueff = 68(2) K under a 1000 Oe applied dc field.

Spin-crossover in an iron(iii) complex showing a broad thermal hysteresis

2021 ◽  
Author(s):  
Cyril Rajnák ◽  
Romana Mičová ◽  
Ján Moncoľ ◽  
Ľubor Dlháň ◽  
Christoph Krüger ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Mononuclear Complex ◽  
Hysteresis Width ◽  
Thermally Induced

A pentadentate Schiff-base ligand 3,5Cl-L2− and NCSe− form a iron(iii) mononuclear complex [Fe(3,5Cl-L)(NCSe)], which shows a thermally induced spin crossover with a broad hysteresis width of 24 K between 123 K (warming) and 99 K (cooling).

A facile synthesized benzophenone Schiff-base ligand as efficient type II visible light photoinitiator

2021 ◽  
Vol 157 ◽  
pp. 106329
Author(s):  
Tanlong Xue ◽  
Yang Li ◽  
Xiangchen Zhao ◽  
Jun Nie ◽  
Xiaoqun Zhu
Keyword(s):  
Schiff Base ◽  
Visible Light ◽  
Schiff Base Ligand ◽  
Type Ii ◽  
Efficient Type

DNA cleavage mechanism by metal complexes of Cu(II), Zn(II) and VO(IV) with a schiff-base ligand

Biochimie ◽  
2021 ◽  
Vol 186 ◽  
pp. 43-50
Author(s):  
María R. Rodríguez ◽  
Martín J. Lavecchia ◽  
Beatriz S. Parajón-Costa ◽  
Ana C. González-Baró ◽  
María R. González-Baró ◽  
...  
Keyword(s):  
Schiff Base ◽  
Metal Complexes ◽  
Schiff Base Ligand ◽  
Dna Cleavage

scholarly journals Structural Characterization of Heterodinuclear ZnII-LnIII Complexes (Ln = Pr, Nd) with a Ring-Contracted H2valdien-Derived Schiff Base Ligand

2021 ◽  
Author(s):  
Shabana Noor ◽  
Richard Goddard ◽  
Fehmeeda Khatoon ◽  
Sarvendra Kumar ◽  
Rüdiger W. Seidel
Keyword(s):  
Molecular Structure ◽  
Schiff Base ◽  
Structural Characterization ◽  
Schiff Base Ligand ◽  
Crystal And Molecular Structure ◽  
X Ray ◽  
X Ray Crystallography ◽  
Imidazoline Ring

AbstractSynthesis and structural characterization of two heterodinuclear ZnII-LnIII complexes with the formula [ZnLn(HL)(µ-OAc)(NO3)2(H2O)x(MeOH)1-x]NO3 · n H2O · n MeOH [Ln = Pr (1), Nd (2)] and the crystal and molecular structure of [ZnNd(HL)(µ-OAc)(NO3)2(H2O)] [ZnNd(HL)(OAc)(NO3)2(H2O)](NO3)2 · n H2O · n MeOH (3) are reported. The asymmetrical compartmental ligand (E)-2-(1-(2-((2-hydroxy-3-methoxybenzylidene)amino)-ethyl)imidazolidin-2-yl)-6-methoxyphenol (H2L) is formed from N1,N3-bis(3-methoxysalicylidene)diethylenetriamine (H2valdien) through intramolecular aminal formation, resulting in a peripheral imidazoline ring. The structures of 1–3 were revealed by X-ray crystallography. The smaller ZnII ion occupies the inner N2O2 compartment of the ligand, whereas the larger and more oxophilic LnIII ions are found in the outer O2O2’ site. Graphic Abstract Synthesis and structural characterization of two heterodinuclear ZnII-LnIII complexes (Ln = Pr, Nd) bearing an asymmetrical compartmental ligand formed in situ from N1,N3-bis(3-methoxysalicylidene)diethylenetriamine (H2valdien) through intramolecular aminal formation are reported.

scholarly journals Schiff base ligand L synthesis and its evaluation as anticancer and antidepressant agent

2020 ◽  
pp. 101331
Author(s):  
Maria Sadia ◽  
Jehangir Khan ◽  
RobinaNaz ◽  
Muhammad Zahoor ◽  
Syed Wadood Ali Shah ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Antidepressant Agent
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