Bis(1,4,7-triazacyclononane-κ<sup>3</sup><i>N</i>)manganese(II) di-μ-diselenido-bis[selenidoarsenate(III)]

Kromm, Anna; Sheldrick, William S.

doi:10.1107/s1600536807002760

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…40 It is able to form very stable, distorted, octahedral bis complexes with many divalent and trivalent metal cations of the first transition metal series. 37 To date, first row transition metal octahedral complexes containing two such ligands of chromium(III), 41 manganese(II), 41,42 iron(II), 41,43 iron(III), 41,43 cobalt(II), 41,44 cobalt(III), 38 nickel(II), 39,45 nickel(III), 41,46 copper(II), 39 and zinc(II) 47 have been isolated and characterized. Their redox potentials were readily measured by cyclic voltammetry, 41 and the electron-transfer self-exchange rate constants of the M(TACN) 2 +3/+2 couples were determined and successfully interpreted.…”

Section: Introductionmentioning

confidence: 99%

Computational study of the spin-state energies and UV-Visspectra of bis(1,4,7-triazacyclononane) complexes of some first-row transition metal cations

Zlatar

Gruden

Güell

et al. 2013

Phys. Chem. Chem. Phys.

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Please note that technical editing may introduce minor changes to the text and/or graphics contained in the manuscript submitted by the author(s) which may alter content, and that the standard Terms & Conditions and the ethical guidelines that apply to the journal are still applicable. In no event shall the RSC be held responsible for any errors or omissions in these Accepted Manuscript manuscripts or any consequences arising from the use of any information contained in them.

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Section: Introductionmentioning

confidence: 99%

Computational study of the spin-state energies and UV-Visspectra of bis(1,4,7-triazacyclononane) complexes of some first-row transition metal cations

Zlatar

Gruden

Güell

et al. 2013

Phys. Chem. Chem. Phys.

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“…1) that are surrounded by potassium cations. As expected, the arsenic atom is tetrahedrally coordinated by four Se atoms with As-Se distances ranging from 2.3068(5) to 2.3267(4)Å and Se-As-Se angles between 108.472(12) and 111.488 (17) • . These data are in accordance with the distances and angles found in Rb 3 AsSe 4 , Cs 3 AsSe 4 and other related structures [7 -10].…”

Section: Introductionmentioning

confidence: 88%

Synthesis and Crystal Structure of K₃AsSe₄ and K₄As₂Se₅ Containing [AsSe₄]^3- Anions and a Novel [As₂Se₅]^4- Isomer Featuring an As–As Bond

Menezes

Fässler

2012

Zeitschrift Für Naturforschung B

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Two novel selenoarsenates, K 3 AsSe 4 and K 4 As 2 Se 5 , were synthesized by the mild solvothermal reaction of potassium carbonate and arsenic and selenium powder in the presence of superheated ethylenediamine and structurally characterized by single-crystal X-ray diffraction. K 3 AsSe 4 crystallizes in the orthorhombic space group Pnma (no. 62) with a = 9.4169(4), b = 10.9695(5), c = 9.7568(8)Å, Z = 4 and V = 1007.86(10)Å 3 and contains [AsSe 4 ] 3− anions with pentavalent arsenic. K 4 As 2 Se 5 crystallizes in the monoclinic space group P2 1 /n (no. 14) with a = 7.6167(2), b = 22.8733(4), c = 8.4687(2)Å, β = 107.241(2) • , Z = 4 and V = 1409.14(5)Å 3 , and shows isolated [As 2 Se 5 ] 4− anions. The most prominent feature of the latter anions is the presence of arsenic in two different formal oxidation states (+4/ + 2) due to the presence of an As-As bond.

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Spin Crossover-Coupled Electron Transfer of [M(tacn)₂]^3+/2+Complexes (tacn = 1,4,7-Triazacyclononane; M = Cr, Mn, Fe, Co, Ni)

2009

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The role of spin state equilibria on the thermodynamics of electron transfer in [M(tacn)(2)](3+/2+) complexes (tacn = 1,4,7-triazacyclononane; M = Cr, Mn, Fe, Co, Ni) was examined using density functional theory at the B3LYP*/cc-pVTZ(-f) level coupled to a continuum solvation model to afford excellent agreement between computed and experimental redox properties. An intuitive explanation of the previously observed nonperiodic trend in reduction potentials, which display a sawtooth pattern along the first-row transition metal series, is offered utilizing a novel diagrammatic illustration of the relationship between spin state energetics and reduction potentials. This representation leads to a generalized proposal for analyzing and designing nearly isoenergetic spin states of transition metals in a given ligand environment. A new ligand specific parameter alpha that allows for quantifying the differential reduction potential as a function of the metal identity is introduced, and a novel protocol is presented that divides the ligand-metal interactions into primary and secondary characteristics, which we anticipate will be useful for rationally designing the electronics of transition metal complexes in general.

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Bis(1,4,7-triazacyclononane-κ³N)manganese(II) di-μ-diselenido-bis[selenidoarsenate(III)]

Abstract: Key indicatorsSingle-crystal X-ray study T = 292 K Mean (C-C) = 0.010 Å R factor = 0.043 wR factor = 0.110 Data-to-parameter ratio = 17.7For details of how these key indicators were automatically derived from the article, see

Cited by 4 publications

References 17 publications

Computational study of the spin-state energies and UV-Visspectra of bis(1,4,7-triazacyclononane) complexes of some first-row transition metal cations

Computational study of the spin-state energies and UV-Visspectra of bis(1,4,7-triazacyclononane) complexes of some first-row transition metal cations

Synthesis and Crystal Structure of K₃AsSe₄ and K₄As₂Se₅ Containing [AsSe₄]^3- Anions and a Novel [As₂Se₅]^4- Isomer Featuring an As–As Bond

Spin Crossover-Coupled Electron Transfer of [M(tacn)₂]^3+/2+Complexes (tacn = 1,4,7-Triazacyclononane; M = Cr, Mn, Fe, Co, Ni)

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Bis(1,4,7-triazacyclononane-κ3N)manganese(II) di-μ-diselenido-bis[selenidoarsenate(III)]

Abstract: Key indicatorsSingle-crystal X-ray study T = 292 K Mean (C-C) = 0.010 Å R factor = 0.043 wR factor = 0.110 Data-to-parameter ratio = 17.7For details of how these key indicators were automatically derived from the article, see

Cited by 4 publications

References 17 publications

Computational study of the spin-state energies and UV-Visspectra of bis(1,4,7-triazacyclononane) complexes of some first-row transition metal cations

Computational study of the spin-state energies and UV-Visspectra of bis(1,4,7-triazacyclononane) complexes of some first-row transition metal cations

Synthesis and Crystal Structure of K3AsSe4 and K4As2Se5 Containing [AsSe4]3- Anions and a Novel [As2Se5]4- Isomer Featuring an As–As Bond

Spin Crossover-Coupled Electron Transfer of [M(tacn)2]3+/2+Complexes (tacn = 1,4,7-Triazacyclononane; M = Cr, Mn, Fe, Co, Ni)

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Bis(1,4,7-triazacyclononane-κ³N)manganese(II) di-μ-diselenido-bis[selenidoarsenate(III)]

Synthesis and Crystal Structure of K₃AsSe₄ and K₄As₂Se₅ Containing [AsSe₄]^3- Anions and a Novel [As₂Se₅]^4- Isomer Featuring an As–As Bond

Spin Crossover-Coupled Electron Transfer of [M(tacn)₂]^3+/2+Complexes (tacn = 1,4,7-Triazacyclononane; M = Cr, Mn, Fe, Co, Ni)