Synthesis and Characterization of a Series of Nickel Complexes with Tripodal and Related Ligands: Electroreductive Coupling of Alkynes and Carbon Dioxide. Issue 40 (16th October 2017)

• Record Type: Journal Article
• Authors: Alexopoulou, Konstantina I.; Leibold, Michael; Walter, Olaf; Zevaco, Thomas A.; Schindler, Siegfried
• Is Part Of: European journal of inorganic chemistry. Issue 40(2017)
• Page Start: 4722
• Page End: 4732
• Publication Date: 2017-10-16
• Subjects: Nickel -- Carbon dioxide -- Butadiene -- Alkynes -- Tripodal ligands; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201700854
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : Nickel(II) complexes of a series of tripodal ligands (and derivatives), for example, [Ni(Me6 tren)(DMF)](ClO4 )2 [Me6 tren = tris(2‐dimethylaminoethyl)‐amine], are prepared and structurally characterized. The complexes are tested for their potential to be used as mediators for electroreductive coupling of butadiene and carbon dioxide. From the whole series, the complex [Ni(Me5 dien)(DMF)3 ](ClO4 )2 (Me5 dien = 1, 1, 4, 7, 7‐pentamethyl‐diethylenetriamine) yields the highest amount of 3 hexene‐1, 6 diacid (HDS), thus leading to the same result as the best nickel complex (with the ligand 2, 4, 4‐trimethyl‐1, 5, 9‐triazacyclodecan, N3) so far reported in the literature. Abstract : A series of Ni II complexes is investigated for their potential to be used as mediators in electroreductive coupling of CO2 with butadiene. The complex [Ni(Me5 dien)(DMF)3 ](ClO4 )2 (Me5 dien = 1, 1, 4, 7, 7‐pentamethyl‐diethylenetriamine) yields the highest amount of 3 hexene‐1, 6 diacid (HDS).