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A Unique Copper-Controlled Template Synthesis of Tetradentate N4-Donor Ligands and Their Propeller-Type Linear Trinuclear CuII Complexes

✍ Scribed by Gerard A. van Albada; Ilpo Mutikainen; Urho Turpeinen; Jan Reedijk

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 322 KB
Volume: 1998
Category: Article
ISSN: 1434-1948
DOI: 10.1002/(sici)1099-0682(199805)1998:5<547::aid-ejic547>3.0.co;2-y

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✦ Synopsis

In situ reaction of Cu II triflate with aminopyridine or amino-[CuϪCuϪCu angle 175.19(2)°] consists of four nearly flat pyrimidine and triethylorthoformate in ethanol results in molecules of the ligand which contribute to the propellerunique linear trinuclear Cu II complexes with the general for-type structure around the CuϪCuϪCu axis. A strong antifermula [Cu 3 (L Ϫ ) 4 ](CF 3 SO 3 ) 2 (EtOH) x (L = dehydronated ligand romagnetic interaction between the Cu II ions is observed, re-N, NЈ-bis(pyridine-2-yl)formamidine or the new ligand sulting in an S = 1/2 ground state below 100 K. N,NЈ-bis(pyrimidine-2-yl)formamidine).

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Synthesis, Structure, Spectroscopy, and Magnetism of Unique Propeller-Type Linear Trinuclear CuII Complexes with In-situ Prepared Formamidine Ligands

✍ Gerard A. van Albada; Petra J. van Koningsbruggen; Ilpo Mutikainen; Urho Turpein 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 314 KB

Three new copper(II) linear trinuclear compounds are crystallise in the triclinic space group P-1 with a = 8.529( 5), b = 15.760(5), c = 19.639(5) A ˚, α = 101.793(5), β = 101.263(5), reported, all of which were synthesized in-situ, with the general formula [Cu 3 (L) 4 ](CF 3 SO 3 ) 2 (Y) x , where