2000
DOI: 10.1002/1521-3765(20000804)6:15<2830::aid-chem2830>3.0.co;2-x
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The Coordination Chemistry ofcis-3,5-Diaminopiperidine and Substituted Derivatives

Abstract: An efficient and convenient method for the preparation of cis-3,5-diaminopiperidine (dapi) has been established and the coordination chemistry of this ligand with CoII, CoIII, NiII, CuII, ZnII, and CdII has been investigated in the solid state and in aqueous solution. Potentiometric measurements revealed a generally high stability for the bis complexes of the divalent cations with maximum stability for NiII (log beta2 = 21.2, beta2 = [M(dapi)2][M](-1)[dapi](-2), 25 degrees C, mu = 0.1 mol dm(-3)). Cyclic volta… Show more

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Cited by 24 publications
(2 citation statements)
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“…The two pendant Cl À ions are oriented roughly perpendicular to, but on opposite sides, of the plane of the (Cd 2 Cl 2 ) core in both the hydrate and ethanol solvate forms. Similar perpendicular arrangement of the pendant Cl À ions is observed in the Cl-(Cd 2 Cl 2 )-Cl fragments of other complexes with different ligands (Neis et al, 2010;Marsh 1999;Pauly et al, 2000). An alternative co-planar arrangement is also possible (Cannas et al, 1980).…”
supporting
confidence: 62%
“…The two pendant Cl À ions are oriented roughly perpendicular to, but on opposite sides, of the plane of the (Cd 2 Cl 2 ) core in both the hydrate and ethanol solvate forms. Similar perpendicular arrangement of the pendant Cl À ions is observed in the Cl-(Cd 2 Cl 2 )-Cl fragments of other complexes with different ligands (Neis et al, 2010;Marsh 1999;Pauly et al, 2000). An alternative co-planar arrangement is also possible (Cannas et al, 1980).…”
supporting
confidence: 62%
“…1,4-Diazepane-6-amine could serve as an interesting, facially coordinating complexing agent for divalent transition metal cations [2], and the title compound was therefore prepared in our laboratory as an intermediate within the synthesis of this ligand. The seven-membered 1,4-diazepane ring adopts an approximate twist-chair (TC) conformation which is very similar to the conformation observed for the azide precursor [ 1 ], with an axial orientation of the amino group, a comparatively short C3-C4 bond of 145.9(7) pm, and a significantly flattened pyramidal geometry around the two ring nitrogen atoms (sum of bond angels around N1 and N2: 351.6° and 352.0°, respectively).…”
Section: Discussionmentioning
confidence: 99%