Five-coordinate amino acid complexes. Synthesis and characterization of nickel(II), copper(II), and zinc(II) complexes of 1,5-diazacyclooctane-N-monoacetic acid

Mh, West; Ji, Legg

doi:10.1021/ja00438a033

Cited by 15 publications

(1 citation statement)

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“…1,5-Diazacyclooctane (DACO) and 1,4-diazacycloheptane (DACH) are the most typical examples of diazamesocyclic ligands. So far, some derivatives of diazamesocyclic ligands bearing donor pendants and their metal complexes have been reported (West & Legg, 1976;Lai et al, 1999), and the Ni II complexes with such functionalized ligands were shown to have very interesting properties and functions (Grapperhaus & Darensbourg, 1998).…”

Section: Commentmentioning

confidence: 99%

[1,4-Bis(pyridyl-2-ylmethyl)-1,4-diazacycloheptane]chlorocobalt(II) perchlorate

Guo

Chen

et al. 2002

Acta Cryst E

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Section: Commentmentioning

confidence: 99%

[1,4-Bis(pyridyl-2-ylmethyl)-1,4-diazacycloheptane]chlorocobalt(II) perchlorate

Guo

Chen

et al. 2002

Acta Cryst E

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ChemInform Abstract: FIVE‐COORDINATE AMINO ACID COMPLEXES. SYNTHESIS AND CHARACTERIZATION OF NICKEL(II), COPPER(II), AND ZINC(II) COMPLEXES OF 1,5‐DIAZACYCLOOCTANE‐N‐MONOACETIC ACID

West¹,

Legg²

1977

Chemischer Informationsdienst

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Structural and Spectral Studies on the Ni(II) Complexes of 1,5‐Diazacyclooctane (DACO) Bearing Heterocyclic Pendants: Formation of a Two‐dimensional Network via Hydrogen Bonds and π‐π Stacking Interactions

Guo

et al. 2001

Chin. J. Chem.

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Medium-sized cyclic ligands containing seven-to ten-membered rings occupy a very important position between acyclic and macrocyclic ligands for they can usually provide a steric effect along with a strong ligand field effect. ' 1,5-Diazacyclooctane (DACO) , the most typical example of the diazamesocyclic ligands, offers several attractive features as a framework for ligand development with exceptionally strong ligand fields , unique conformational requirements and the potential for further functionalization. 24 Since DACO has only two nitrogen donors, two or more ligands are required for the formation of one metal center. 2*4*s However, appropriately substituted rnesccycles can enhance the pre-organization of the ligand, thereby facilitating complexation. The first example of the DACO derivative, 1 ,5-diaza~yclooctane N , N'-diacetate (DACODA) and its Co( II) , Ni( II) , Cu( 11) and Zn( II) complexes were reported by Leg and co-workers.' The crystal structures show that DACO exhibits the interesting " W c h a i r " configuration in its metal complexes. The hydrogen atoms of the trimethylene p u p on the backbone effectively block the sixth-coordination to the metal center to form complexes with penta-coordination mode' and the flap-over ring could provide a sterically protected metal coordination site capable of sup-

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Five-coordinate amino acid complexes. Synthesis and characterization of nickel(II), copper(II), and zinc(II) complexes of 1,5-diazacyclooctane-N-monoacetic acid

Cited by 15 publications

References 3 publications

[1,4-Bis(pyridyl-2-ylmethyl)-1,4-diazacycloheptane]chlorocobalt(II) perchlorate

[1,4-Bis(pyridyl-2-ylmethyl)-1,4-diazacycloheptane]chlorocobalt(II) perchlorate

ChemInform Abstract: FIVE‐COORDINATE AMINO ACID COMPLEXES. SYNTHESIS AND CHARACTERIZATION OF NICKEL(II), COPPER(II), AND ZINC(II) COMPLEXES OF 1,5‐DIAZACYCLOOCTANE‐N‐MONOACETIC ACID

Structural and Spectral Studies on the Ni(II) Complexes of 1,5‐Diazacyclooctane (DACO) Bearing Heterocyclic Pendants: Formation of a Two‐dimensional Network via Hydrogen Bonds and π‐π Stacking Interactions

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