scholarly journals Zinc Complexes with Guanidine-Pyridine Hybrid Ligands: Anion Effect and Catalytic Activity

2015 ◽  
Vol 641 (12-13) ◽  
pp. 2147-2156 ◽  
Author(s):  
Artjom Döring ◽  
Ulrich Flörke ◽  
Alexander Hoffmann ◽  
Matthew D. Jones ◽  
Dirk Kuckling ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Zinc Complexes ◽  
Anion Effect ◽  
Hybrid Ligands

Zinc Complexes with Guanidine-Pyridine Hybrid Ligands - Guanidine Effect and Catalytic Activity

2011 ◽  
Vol 2011 (28) ◽  
pp. 4441-4456 ◽  
Author(s):  
Janna Börner ◽  
Ines dos Santos Vieira ◽  
Matthew D. Jones ◽  
Artjom Döring ◽  
Dirk Kuckling ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Zinc Complexes ◽  
Hybrid Ligands

scholarly journals Ring-Opening Copolymerization of Cyclohexene Oxide and Cyclic Anhydrides Catalyzed by Bimetallic Scorpionate Zinc Catalysts

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1651
Author(s):  
Felipe de la Cruz-Martínez ◽  
Marc Martínez de Sarasa Buchaca ◽  
Almudena del Campo-Balguerías ◽  
Juan Fernández-Baeza ◽  
Luis F. Sánchez-Barba ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Reaction Mechanism ◽  
Catalytic System ◽  
Phthalic Anhydride ◽  
Ring Opening ◽  
High Selectivity ◽  
Zinc Complexes ◽  
Cyclohexene Oxide ◽  
Reaction Conditions ◽  
Cyclic Anhydrides

The catalytic activity and high selectivity reported by bimetallic heteroscorpionate acetate zinc complexes in ring-opening copolymerization (ROCOP) reactions involving CO2 as substrate encouraged us to expand their use as catalysts for ROCOP of cyclohexene oxide (CHO) and cyclic anhydrides. Among the catalysts tested for the ROCOP of CHO and phthalic anhydride at different reaction conditions, the most active catalytic system was the combination of complex 3 with bis(triphenylphosphine)iminium as cocatalyst in toluene at 80 °C. Once the optimal catalytic system was determined, the scope in terms of other cyclic anhydrides was broadened. The catalytic system was capable of copolymerizing selectively and efficiently CHO with phthalic, maleic, succinic and naphthalic anhydrides to afford the corresponding polyester materials. The polyesters obtained were characterized by spectroscopic, spectrometric, and calorimetric techniques. Finally, the reaction mechanism of the catalytic system was proposed based on stoichiometric reactions.

scholarly journals Synthesis, Structures, and Catalytic Activity of Homo- and Heteroleptic Ketoiminate Zinc Complexes in Lactide Polymerization

2018 ◽  
Vol 2018 (36) ◽  
pp. 4014-4021 ◽  
Author(s):  
Phillip Steiniger ◽  
Pascal M. Schäfer ◽  
Christoph Wölper ◽  
Johanna Henkel ◽  
Agnieszka N. Ksiazkiewicz ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Zinc Complexes ◽  
Lactide Polymerization

Phosphatase models: Synthesis, structure and catalytic activity of zinc complexes derived from a phenolic Mannich-base ligand

Polyhedron ◽  
2015 ◽  
Vol 97 ◽  
pp. 55-65 ◽  
Author(s):  
Ria Sanyal ◽  
Prateeti Chakraborty ◽  
Ennio Zangrando ◽  
Debasis Das
Keyword(s):  
Catalytic Activity ◽  
Mannich Base ◽  
Zinc Complexes

Strategies for Tuning the Catalytic Activity of Zinc Complexes in the Solvent-Free Coupling Reaction of CO2 and Cyclohexene Oxide

2021 ◽  
pp. 120753
Author(s):  
Paolo Biagini ◽  
Carlo Perego ◽  
Riccardo Pò ◽  
Laura Boggioni ◽  
Mariachiara Cozzolino ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Coupling Reaction ◽  
Zinc Complexes ◽  
Solvent Free ◽  
Cyclohexene Oxide

High Efficacy Glycerol Acetalization with silica gel immobilized Bronsted acidic ionic liquids catalyst - Preparation and comprehending the counter-anion effect on the catalytic activity

2021 ◽  
Author(s):  
Shalini Shashni ◽  
Vasundhara Singh ◽  
Amrit Pal Toor
Keyword(s):  
Catalytic Activity ◽  
Ionic Liquids ◽  
Silica Gel ◽  
Catalyst Preparation ◽  
High Efficacy ◽  
Counter Anion ◽  
Anion Effect ◽  
Acidic Ionic Liquids ◽  
Mesoporous Silica Gel ◽  
Nano Catalysts

The subsequent imidazolium sulfonate zwitterions (ZIs) with unconventional counter-anions were used to fabricate a series of mesoporous silica gel immobilized Bronsted acidic ionic liquids (SG@BAILs) nano-catalysts. In comparison to traditional...

scholarly journals Solvent-Dependent Switch of Ligand Donor Ability and Catalytic Activity of Ruthenium(II) Complexes Containing Pyridinylidene Amide (PYA) N-Heterocyclic Carbene Hybrid Ligands

2014 ◽  
Vol 53 (15) ◽  
pp. 8054-8060 ◽  
Author(s):  
Vivienne Leigh ◽  
Daniel J. Carleton ◽  
Juan Olguin ◽  
Helge Mueller-Bunz ◽  
L. James Wright ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Donor Ability ◽  
Hybrid Ligands

Syntheses and structures of two gold(i) coordination compounds derived from P–S hybrid ligands and their efficient catalytic performance in the photodegradation of nitroaromatics in water

2015 ◽  
Vol 44 (12) ◽  
pp. 5662-5671 ◽  
Author(s):  
Hai-Xiao Qi ◽  
Jian-Feng Wang ◽  
Zhi-Gang Ren ◽  
Jin-Jiao Ning ◽  
Jian-Ping Lang
Keyword(s):  
Catalytic Activity ◽  
Coordination Compounds ◽  
Catalytic Performance ◽  
High Catalytic Activity ◽  
Hybrid Ligands

Two Au–P–S complexes [Au2(dppatc)2]Cl2 and [Au(dppmt)]2 were prepared and they showed high catalytic activity toward the photodegradation of nitroaromatics in water.

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