Coordination chemistry of new sulfur-containing ligands. 20. Preparation, characterization, and crystal and molecular structure of a severely distorted copper(II) N2S2 complex: [N,N'-tetramethylenebis(methyl 2-amino-1-cyclopentenedithiocarboxylato)]copper(II)

Bereman, Robert D.; Shields, Glen D.; Bordner, Jon; Dorfman, Jay R.

doi:10.1021/ic50221a043

Cited by 42 publications

(7 citation statements)

References 5 publications

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“…1a) [18,21] are observed to gently shift from a planar configuration toward a highly distorted tetrahedral orientation. A similar effect was observed by Bereman et al [19] in their study of the structural and spectroscopic behaviour of copper(II) N 2 S 2 Schiff base complexes (Fig. 1b).…”

Section: Introductionsupporting

confidence: 88%

“…1b) have previously reported a relevant series of copper(II) cyclopentenedithiocarboxylate adducts [19]. Not only do these compounds maintain the required N 2 S 2 environment (Fig.…”

Section: Oxidation Productsmentioning

confidence: 88%

“…Our attempts to isolate the analogous copper(II) species for our tert-butylthiobenzylidene species were unsuccessful and consequently to obtain some direct comparison with the higher oxidation species we had to resort to the re-analysis of the homologous series of complexes (Table 3) reported by Bereman et al [19] Although the N-Cu-S ring sizes differ between these two classes of compound, the bond lengths and plane angles around the metal centre are instructive (Table 3). We find only a minor compression of the respective M-N and M-S bond lengths between the two sets of complexes presumably due to the increased charge on the metal centre.…”

Section: Blue Copper Protein Modellingmentioning

confidence: 99%

“…1) [18][19][20][21]. Although the structural motifs of some metals (nickel, zinc) change markedly [20] as the alkyl chain increases (n = 2-4), the N 2 O 2 copper Schiff base complexes ( Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Two Schiff base scaffolds[19][20][21], which have been used to model the geometric shifts (planar ! tetrahedral: X = O) in copper complexes.…”

mentioning

confidence: 99%

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Modelling the impact of geometric parameters on the redox potential of blue copper proteins

Taylor

Stevenson

Berlouis

et al. 2006

Journal of Inorganic Biochemistry

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Section: Introductionsupporting

confidence: 88%

“…1b) have previously reported a relevant series of copper(II) cyclopentenedithiocarboxylate adducts [19]. Not only do these compounds maintain the required N 2 S 2 environment (Fig.…”

Section: Oxidation Productsmentioning

confidence: 88%

Section: Blue Copper Protein Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Two Schiff base scaffolds[19][20][21], which have been used to model the geometric shifts (planar ! tetrahedral: X = O) in copper complexes.…”

mentioning

confidence: 99%

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Modelling the impact of geometric parameters on the redox potential of blue copper proteins

Taylor

Stevenson

Berlouis

et al. 2006

Journal of Inorganic Biochemistry

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Comparison of Electrochemically and Photochemically Induced Electron-Transfer Processes of a Series of Copper(II) Schiff Base Complexes with Thiolate Coordination

Knoblauch

Hartl²,

Stufkens

et al. 1999

Eur. J. Inorg. Chem.

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The electrochemical and photoredox properties of copper(II) thiopyrazolone Schiff base complexes 1–9 with imine and thiolate coordination, showing variable degrees of tetrahedral distortion, were investigated by means of combined electrochemical and spectroscopic techniques in the temperature range of 193–293 K. The cyclic voltammograms of 1–9 in butyronitrile revealed that the reduction and oxidation paths are strongly dependent on the geometry of the CuN2S2 moiety. Due to the strong delocalization of the singly occupied redox orbital (SOMO) the oxidations and reductions occur in a narrow potential range. The one‐electron‐reduced 1(r)–9(r) and oxidized 1(o)–9(o) products were electrogenerated and stabilized inside optically transparent thin‐layer electrochemical (OTTLE) cells at variable temperatures and could be characterized for the first time by UV/Vis spectroscopy. The reduced formal d10 copper(I) species absorb only weakly in the visible region. The oxidized products 1(o)–9(o) show several strong absorptions in the visible region due to the presence of formal d8 copper(III) species. The spectral information allowed assignment of the initial photoproducts. Irradiations in donor media such as THF or EtOH initially produces 1(r)–9(r). No photoreduction was observed in tBuOH which cannot liberate reducing Hα. The primary oxidized species 1(o)–9(o) were formed in chlorinated acceptor solvents (CHCl3) on UV irradation. Fast relaxation to the ground state prevents the photoredox reactions from CT or LF excited states.

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ChemInform Abstract: COORDINATION CHEMISTRY OF NEW SULFUR‐CONTAINING LIGANDS. 20. PREPARATION, CHARACTERIZATION, AND CRYSTAL AND MOLECULAR STRUCTURE OF A SEVERELY DISTORTED COPPER(II) N2S2 COMPLEX: (N,N′‐TETRAMETHYLENEBIS(METHYL 2‐AMINO‐1‐CYCLOPENTENEDITHIOCARBOXYLATO))COPPER(II)

Bereman¹,

Shields²,

Bordner³

et al. 1981

Chemischer Informationsdienst

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Coordination chemistry of new sulfur-containing ligands. 20. Preparation, characterization, and crystal and molecular structure of a severely distorted copper(II) N2S2 complex: [N,N'-tetramethylenebis(methyl 2-amino-1-cyclopentenedithiocarboxylato)]copper(II)

Cited by 42 publications

References 5 publications

Modelling the impact of geometric parameters on the redox potential of blue copper proteins

Modelling the impact of geometric parameters on the redox potential of blue copper proteins

Comparison of Electrochemically and Photochemically Induced Electron-Transfer Processes of a Series of Copper(II) Schiff Base Complexes with Thiolate Coordination

ChemInform Abstract: COORDINATION CHEMISTRY OF NEW SULFUR‐CONTAINING LIGANDS. 20. PREPARATION, CHARACTERIZATION, AND CRYSTAL AND MOLECULAR STRUCTURE OF A SEVERELY DISTORTED COPPER(II) N2S2 COMPLEX: (N,N′‐TETRAMETHYLENEBIS(METHYL 2‐AMINO‐1‐CYCLOPENTENEDITHIOCARBOXYLATO))COPPER(II)

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