Structures of α- and β-copper(II) pipecolinate dihydrate, diaquabis(2-piperidinecarboxylato)copper(II), [Cu(C6H10NO2)2(H2O)2]

Characterization and crystal structure of cadmium(II) halide complexes with amino acids and their derivativesVI. The comparison of crystal structures of cadmium(II) halide complexes with three kinds of piperidine carboxylic acids

“…Rebello and Ram Reddy [6] determined the stability constants and thermodynamic parameters of transition metal complexes with L L-Hpipe-2. Haendler [7] reported the crystal structure of [Cu(pipe-2) 2 (H 2 O) 2 ]. However, few crystal structures of bivalent metal complexes with piperidine-3-carboxylic acid (Hpipe-3) and piperidine-4-carboxylic acid (Hpipe-4), which are positional isomers of L [10] have been determined by X-ray diffraction.…”

Preparation and crystal structural characterization of Cu(II) complex with piperidine-4-carboxylic acid

“…Haendler prepared [Cu ( Pipe -2) 2 ( H 2 O ) 2 ], which was in two polymorphic forms, differing in molecular packing. In this complex, a copper atom was in an octahedral geometry ligated by two carboxylato oxygen and two nitrogen atoms of Pipe-2 and two water molecules [13]. The zinc(II) complexes with HPipen ( n = 2, 3, 4) are prepared, and their structures are discussed in [14].…”

Copper 1-aminocyclohexanecarboxylate monohydrate [aquabis(1-aminocyclohexanecarboxylato)copper(II)]; tetra- and pentacoordinate copper

“…Introduction. The structure analysis of the title compound is a continuation of the investigation of metal complexes of aromatic and heterocyclic amino acids (Boudreau & Haendler, 1986;Haendler, 1985Haendler, , 1986. Copper(II) complexes of these amino acids have exhibited the ubiquitous square-or rectangularplanar coordination of the Cu atom, the Jahn-Teller octahedral distortion and the distorted trigonalbipyramidal configuration associated with the Berry displacement.…”