The Molecular and Crystal Structure of Bis(1-phenyl-l,3-butanedionato)copper

trans-Bis[(+)-(1R,4R)-3-benzoylcamphorato-κ2O,O′]copper(II)

“…The average Cu-O bond length of 1.9196 (18) Å is close to the mean values reported for other Cu II --diketonates (Gromilov & Baidina, 2004) [e.g. Cu(PhCOCH-COCH 3 ) 2 : 1.923 (5) Å (Hon et al, 1966) and Cu(PhCOCHCOC 4 H 9 ) 2 : 1.912 (3) Å (Baidina et al, 1989)] The six-membered metallacycles A (Cu/O1/O3/C2/C3/C30) and B (Cu/O2/O4/C12/C13/C40) are not planar. The conformation of rings A and B is best described as an envelope, with the Cu atom at the flap positions, 0.306 (3) and 0.355 (3) Å , respectively, from the mean planes through the other five atoms.…”

Different coordination modes and supramolecular aggregations in copper(II) pentane-2,4-dionato compounds with 2-pyridone and 3-hydroxypyridine

“…The shortest CuÁÁÁCc distances of 3.01 and 3.06 Å were found in trans-Cu(benzoylacetonato) 2 [81] and Cu(acac) 2 , respectively [82]. In these two compounds centroid-centroid contacts are 3.13 and 3.14 Å with the angle between metallacycles being 0.02°.…”

Syntheses and Crystal Structures of Two One-Dimensional Chain Copper Benzoylacetone Complexes Bridged Through Azobispyridine Ligands

“…in Tables II and III, [17], Cu(acac) 2 (4,4 0 -bipy) [8], Cu(TTA) 2 (4,4 0 -bipy) [9], Cu(TTA) 2 (pyz) [10], [Cu(TTA) 2 ](btrz) [11] and Cu(hfac) 2 (pyz) [12] [9], Cu(TTA) 2 (pyz) [10] and [Cu(TTA) 2 ](btrz) [11], while shorter than the Cu-N distances in Cu(acac) 2 (4,4 0 -bipy) [8] and Cu(hfac) 2 (pyz) [12] and longer than those in some hfac copper complexes [13,14]. 4,4 0 -Azpy ligands are trans in Complex 1.…”

“…4,4 0 -Azobispyridine (4,4 0 -azpy) and 3,3 0 -azobispyridine (3,3 0 -azpy) were prepared following the literature method [16]. Cu(bzac) 2 was prepared by the literature method [17]. …”