Geometric control of manganese redox state

Drew, Michael G. B.; Harding, Charlie; McKee, Vickie; Morgan, Grace G.; Nelson, Jane

doi:10.1039/c39950001035

Cited by 151 publications

(108 citation statements)

References 5 publications

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“…[41] This statement is related to the investigations of Ray [42] and Schrock, [43] who commented on the oxidation potentials of various transition metal complexes with trenlike amido ligands possessing varying degrees of steric strain. We believe that the instability of our oxidized complexes is due to the steric strain of the ligand periphery imposed by the reduced radius of the cation in its oxidized form.…”

Section: Cyclic Voltammetric Measurementsmentioning

confidence: 79%

Complexes of Manganese, Iron, Zinc, and Molybdenum with a Superbasic Tris(guanidine) Derivative of Tris(2-ethylamino)amine (Tren) as a Tripod Ligand

Wittmann

Raab

Schorm

et al. 2001

Eur. J. Inorg. Chem.

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Keywords: Ligand design / N ligands / Tripodal ligands / Coordination chemistry / Manganese / Iron / Zinc / MolybdenumThe synthesis of the novel tripod ligand N[CH 2 CH 2 N= C(NMe 2 ) 2 ] 3 , based on the tris(2-ethylamino)amine (tren) backbone and having a set of three superbasic tetramethylguanidine (TMG) donor atoms instead of the primary amine functionalities, is described. This ligand has been prepared by treating tren with the Vilsmeyer salt [(Me 2 N) 2 CCl]Cl in

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Section: Cyclic Voltammetric Measurementsmentioning

confidence: 79%

Complexes of Manganese, Iron, Zinc, and Molybdenum with a Superbasic Tris(guanidine) Derivative of Tris(2-ethylamino)amine (Tren) as a Tripod Ligand

Wittmann

Raab

Schorm

et al. 2001

Eur. J. Inorg. Chem.

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“…0.25 Å towards the N 4 basal plane. Additionally, the pronounced distortion of the coordination polyhedron in [Zn II (medpt) 2 (NO 2 )]ClO 4 is nicely illustrated by the large average trigonal distortion parameter U = 9.91° [34] and the large octahedral distortion parameter R = 146.31° [35]. Just as in [ [Zn II (medpt) 2 (NO 2 )]ClO 4 , which strongly affects this angle.…”

Section: Resultsmentioning

confidence: 89%

Structural characterisation of mononuclear zinc(ii) complexes of 4-methyl-3,5-di(2-pyridyl)-4H-1,2,4-triazole with three-atom co-ligands: [ZnII(medpt)2X]ClO4 (X = NCS−, N3 −, NO2 −)

Klingele

Steinfeld

Klingele

2009

Transition Met Chem

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The reaction of 4-methyl-3,5-di(2-pyridyl)-4H-1,2,4-triazole (medpt) with Zn(ClO 4 ) 2 Á6H 2 O and NaSCN, NaN 3 or NaNO 2 in a 2:1:1 molar ratio in MeOH/H 2 O (9:1) affords the mononuclear complexes [Zn II (medpt) 2 (NCS)]-ClO 4 , [Zn II (medpt) 2 (N 3 )]ClO 4 and [Zn II (medpt) 2 (NO 2 )]-ClO 4 , respectively. All three complexes have been structurally characterised and found to feature unusual coordination polyhedra for 3,5-di(2-pyridyl)-4H-1,2,4-triazole complexes. In [Zn II (medpt) 2 (NCS)]ClO 4 and [Zn II -(medpt) 2 (N 3 )]ClO 4 , the zinc atom resides within a distorted square-pyramidal N 5 coordination sphere [s = 0.22 and 0.04, respectively] with two bidentate medpt ligands bound equatorially and the pseudohalide ion coordinating as a unidentate co-ligand in the apical position. In contrast, the NO 2 -ion in [Zn II (medpt) 2 (NO 2 )]ClO 4 acts as a bidentate ligand, which leads to a strongly distorted N 4 O 2 coordination environment about the metal centre.

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“…6). The Fe(III) complex adopts a distorted octahedral geometry, (Σ = 69.5°) [51][52][53] , with an N 4 S 2 coordination sphere ( Table 1).…”

Section: Methodsmentioning

confidence: 99%

Investigating the Structure Directing Properties of Designer 1,8-Naphthalimide and Amphiphilic Sulfonate Anions and Their Fe^III Thiosemicarbazone Complexes

Carter

Laverick

Wales

et al. 2017

Crystal Growth & Design

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Geometric control of manganese redox state

Abstract: Comparison of the structures of four monomanganese (and one monoiron) complexes of ligands with the identical donor [N3(0-l31 set reveals that geometry determines the redox state of the cation.

Cited by 151 publications

References 5 publications

Complexes of Manganese, Iron, Zinc, and Molybdenum with a Superbasic Tris(guanidine) Derivative of Tris(2-ethylamino)amine (Tren) as a Tripod Ligand

Complexes of Manganese, Iron, Zinc, and Molybdenum with a Superbasic Tris(guanidine) Derivative of Tris(2-ethylamino)amine (Tren) as a Tripod Ligand

Structural characterisation of mononuclear zinc(ii) complexes of 4-methyl-3,5-di(2-pyridyl)-4H-1,2,4-triazole with three-atom co-ligands: [ZnII(medpt)2X]ClO4 (X = NCS−, N3 −, NO2 −)

Investigating the Structure Directing Properties of Designer 1,8-Naphthalimide and Amphiphilic Sulfonate Anions and Their Fe^III Thiosemicarbazone Complexes

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Geometric control of manganese redox state

Abstract: Comparison of the structures of four monomanganese (and one monoiron) complexes of ligands with the identical donor [N3(0-l31 set reveals that geometry determines the redox state of the cation.

Cited by 151 publications

References 5 publications

Complexes of Manganese, Iron, Zinc, and Molybdenum with a Superbasic Tris(guanidine) Derivative of Tris(2-ethylamino)amine (Tren) as a Tripod Ligand

Complexes of Manganese, Iron, Zinc, and Molybdenum with a Superbasic Tris(guanidine) Derivative of Tris(2-ethylamino)amine (Tren) as a Tripod Ligand

Structural characterisation of mononuclear zinc(ii) complexes of 4-methyl-3,5-di(2-pyridyl)-4H-1,2,4-triazole with three-atom co-ligands: [ZnII(medpt)2X]ClO4 (X = NCS−, N3 −, NO2 −)

Investigating the Structure Directing Properties of Designer 1,8-Naphthalimide and Amphiphilic Sulfonate Anions and Their FeIII Thiosemicarbazone Complexes

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Investigating the Structure Directing Properties of Designer 1,8-Naphthalimide and Amphiphilic Sulfonate Anions and Their Fe^III Thiosemicarbazone Complexes