Five-coordinate adducts of cupric β-diketone complexes: the structure of 4-methylpyridine bis-(o-hydroxyacetophenonato)copper(II)

Crystal structures of 2-acetyl-4-ethynylphenol and 2-acetyl-4-(3-hydroxy-3-methylbut-1-yn-1-yl)phenol

“…2-Acetylphenol and its derivatives are well known for their efficiency in the complexation of transition metal ions (Weber, 1977;Duckworth & Stephenson, 1969;Ali et al, 2005). Such molecules, endowed with a 2-acetylphenol moiety, have been used as molecular linkers for the construction of coordination polymers and related porous framework structures (Hü bscher et al, 2013;Gü nthel et al, 2015) that are the subject of great topical interest (MacGillivray, 2010;Furukawa et al, 2013;Eddaoudi et al, 2015).…”

Bis(2-acetyl-5-hydroxyphenolato-κ2O,O′)copper(II)

“…The deprotonated 2-hydroxyacetophenone anion has been used to chelate to a number of divalent transition metal ions; the copper(II) derivatives include, for example, (2-acetylphenolato)(2,2 0 -bipyridyl)perchloratocopper (Elmali et al, 2002) and bis(2-acetylphenolato)(4-methylpyridine)copper (Duckworth & Stephenson, 1969). In the second example, the metal atom is coordinated by two 4-picoline molecules; the title compound, (I) ( Fig.…”

EPR Characterisation of CuII Complexes of Poly(propylene imine) Dendromesogens: Using the Orienting Effect of a Magnetic Field

“…This bridging can lead to weakening of the equatorial s bonding in a complex and, simultaneously, to an increase in equatorial copper-ligand bond lengths. [65,66] All these facts allow us to suggest that green complex 1 exhibits further coordination in addition to N 2 O 2 ligands, most probably with a tertiary amino nitrogen atom from the inner dendrimeric core. Moreover, the copper(ii) complex in the green compound must have a structure similar to a "dimer" including two copper ions (without pairing of copper spins).…”