Photoactive Ternary Lanthanide-Centered Hybrids with Schiff-Base Functionalized Polysilsesquioxane Bridges and N-Heterocyclic Ligands

2010 ◽  
Vol 2010 (15) ◽  
pp. 2290-2296 ◽  
Author(s):  
Jin-Liang Liu ◽  
Bing Yan ◽  
Lei Guo
Keyword(s):  
Schiff Base ◽  
Heterocyclic Ligands

scholarly journals Pseudohalogenometallverbindungen, LXV [1] Synthese von Tetrazolen und Triazolen über die 1,3-dipolare Cycloaddition an die Azid-Liganden von polymeren Cobalt(III)-und Palladium(II)-Komplexen. Darstellung und Struktur von 5-TrichlormethyItetrazol / Pseudohalogeno Metal Compounds, LXV [1] Synthesis of Tetrazoles and Triazoles via 1,3-Dipolar Cycloaddition to the Azido Ligands of Polymerie Cobalt(III) and Palladium(II) Complexes. Synthesis and Structure of 5-Trichloromethyltetrazole

1987 ◽  
Vol 42 (1) ◽  
pp. 55-64 ◽  
Author(s):  
Josef Geisenberger ◽  
Jürgen Erbe ◽  
Jürgen Heidrich ◽  
Ulrich Nagela ◽  
Wolfgang Beck
Keyword(s):  
Schiff Base ◽  
Structural Analysis ◽  
Hydrogen Chloride ◽  
Dipolar Cycloaddition ◽  
Heterocyclic Ligands ◽  
Metal Compounds ◽  
X Ray ◽  
Azide Ligand ◽  
Polymeric Schiff Base

Abstract The cycloaddition of nitriles and of dimethylacetylenedicarboxylate to the azide ligand of polymeric Schiff Base cobalt(III) and phosphine palladium(II) complexes gives the corresponding tetrazolate and triazolate complexes from which the heterocycles could be cleaved by hydrogen chloride. Usually the yields are low; if the heterocycle is soluble in ether or sublimable, yields up to 30% have been obtained. Using this method the hitherto unknown 5-trichlormethyltetrazole could be prepared which was characterized by an X-ray structural analysis. Similarly, the cyclo-addition of azido(tetraphenylporphinato)cobalt(III) with nitriles, cyclohexylisocyanide and MeO2CC≡CCO2 Me affords the corresponding complexes with heterocyclic ligands. The prepa-ration of tetraphenylporphyrinato(tricyanmethanido)cobalt(III), (TPP)CoN=CC(CN)2 , is reported.

scholarly journals Formation and conversion of six temperature-dependent fluorescent ZnII-complexes containing two in situ formed N-rich heterocyclic ligands

RSC Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 6994-7002 ◽  
Author(s):  
Qin Wei ◽  
Mei-Juan Wei ◽  
Yan-Jun Ou ◽  
Ji-Yuan Zhang ◽  
Xia Huang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Temperature Dependent ◽  
Heterocyclic Ligands ◽  
First Time

Formation and conversion of six temperature-dependent fluorescent ZnII-complexes containing two solvothermal in situ formed N-rich heterocyclic ligands from simply N3 set Schiff base were systematically studied for the first time.

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).

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