Copper(I) carbonyl and copper(II) acetato complexes with 2,2′-dipyridylamine and halide anions. Crystal and molecular structures of carbonylchloro(2,2′-dipyridylamine)copper(I) and acetatochloro(2,2′-dipyridylamine)copper(II)

Chemical Rearrangement under Hydrothermal Conditions: Formation of Polymeric Chains (CuX)2(dpiz) and (CuX)3(dpiz) (X = Cl, Br; dpiz = Dipyrido[1,2-a:2‘,3‘-d]imidazole) and Crystal Structures of [(CuCl)2(C10H7N3)] and [(CuBr)3(C10H7N3)]

“…The Cu(2)−N distance, 1.969(5) Å, is slightly shorter than the Cu(1)−N distance, 2.003(5) Å. Both are comparable with those found in bis(dipyridylamine) copper(I) complex (2.003(2) to 2.022(2) Å) and Cu(dpa)(CO)Cl (2.027(3)−2.035(3) Å) . The tetrahedrally coordinated copper is quite distorted, with Cl−Cu−Cl angles ranging from 99.88(7)° to 109.91(7)° and Cl−Cu−N angles of 105.5(2)° and 121.292°.…”

“…Although a large number of copper complexes containing 2,2‘-dipyridylamine have been obtained from non-hydrothermal reactions, 1a,,,− no chemical rearrangement of dpa has been observed previously. Nonaqueous solution syntheses using the same reagents have produced many molecular compounds in which dpa simply binds to the metal centers without undergoing rearrangement.…”

(Acetato-κ2O,O′)(di-2-pyridylamine-κN)(trifluoroacetato-κO)copper(II)

“…The basal plane of the square-pyramidal environment around the copper(II) cation consists of N1, N3, O1 and O2; the mean deviation from the plane of the four atoms is 0.0125 (2) A Ê and the maximum deviation is only 0.0143 (3) A Ê for atoms O1 and O2. The structure of the complex is very similar to the structure described by Ugozzoli et al (1997). The Cu II center is displaced out of the basal plane by 0.1796 (13) A Ê in the direction of atom O3 of the tri¯uoroacetate group, which occupies the apical position of the pyramidal geometry, with a CuÐO3 distance of 2.264 (2) A Ê .…”

“…The title complex is ®ve-coordinate and crystallizes in the triclinic space group P1. The geometry is very similar to that of (acetato-2 O,O H )chloro(2,2 H -dipyridylamine)copper (Ugozzoli et al, 1997). The basal plane of the square-pyramidal environment around the copper(II) cation consists of N1, N3, O1 and O2; the mean deviation from the plane of the four atoms is 0.0125 (2) A Ê and the maximum deviation is only 0.0143 (3) A Ê for atoms O1 and O2.…”

Aqua(2,2′-bipyridyl)chloronitratocopper(II)

“…The copper environment in (I) is also different from those of the related dpyam complexes with monovalent acetate and propionate oxoanions, viz. [CuCl(O 2 CCH 3 )-(dpyam)] (Ugozzoli, et al, 1997) and [CuCl(O 2 CCH 2 CH 3 )-(dpyam)]ÁH 2 O (Youngme et al, 1999), which comprise mononuclear units with bidentate acetate or propionate ligands and, in the latter, an uncoordinated water molecule, giving a distorted square-based pyramidal geometry. The most similarity to compound (I) is found in the square-pyramidal complex [Cu(NCS)(O 2 CCH 3 )(dpyam)(H 2 O)] (Youngme et al, 2006), containing a pseudohalide, a coordinated water molecule and a monodentate acetate ligand.…”