Dr. Dennis Wiedemann
Dr. Dennis Wiedemann
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Controlled ligand distortion and its consequences for structure, symmetry, conformation and spin-state preferences of iron(II) complexes
We study the isolated effect of ligand-sphere distortion in the solid state, in solution, and with quantum-chemical methods.
N. Kroll
,
K. Theilacker
,
M. Schoknecht
,
D. Baabe
,
Dr. Dennis Wiedemann
,
M. Kaupp
,
A. Grohmann
,
G. Hörner
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DOI
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CIF
Spin-state dynamics of a photochromic iron(II) complex and its immobilization on oxide surfaces via phenol anchors
This work presents a detailed study of the photo-induced spin-state dynamics of a photochromic iron(II) complex.
P. Stock
,
N. Spintig
,
J. Scholz
,
J. D. Epping
,
C. Oelsner
,
Dr. Dennis Wiedemann
,
A. Grohmann
,
G. Hörner
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DOI
Supporting Information
Ternary transition-metal fluoride precursors for the fluorolytic sol–gel route: new insights into speciation and decomposition
By addition of pyridine, different cationic, electroneutral and anionic fluorido precursor complexes have been trapped and characterised.
J. Kohl
,
Dr. Dennis Wiedemann
,
S. I. Troyanov
,
E. Palamidis
,
M. Lerch
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DOI
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The High-Temperature Transformation from 1T- to 3R-LiₓTiS₂ (𝘹 = 0.7, 0.9) as Observed 𝘪𝘯 𝘴𝘪𝘵𝘶 with Neutron Powder Diffraction
We report on the synthesis of phase-pure 1T-LiₓTiS₂ (𝘹 = 0.7, 0.9) and its transformation to the 3R phase between 673 and 873 K.
Dr. Dennis Wiedemann
,
S. Nakhal
,
A. Senyshyn
,
T. Bredow
,
M. Lerch
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DOI
Thiocyanate Anchors for Salt-like Iron(II) Complexes on Au(111): Promises and Caveats
The formation of self-assembled monolayers (SAMs) on Au(111) from solution has been investigated for two ionic iron(II) complexes of the type [Fe(L)](BF₄)₂.
P. Stock
,
A. Erbe
,
M. Buck
,
Dr. Dennis Wiedemann
,
H. Ménard
,
G. Hörner
,
A. Grohmann
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DOI
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3d- and 4d-Metal(II) Complexes of a Tris(pyridyl)ethane-Derived N₄ Ligand – A Structural Study and Reactivity Remarks
A series of complexes of a new N₄ chelate ligand with divalent transition metal ions was obtained by reaction with the respective chloride salt in methanol.
Dr. Dennis Wiedemann
,
A. Grohmann
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DOI
Bulk spin-crossover in the complex [FeL(NCS)₂] of a tris(pyridyl)ethane-derived N₄-ligand—a temperature-dependent crystallographic study
The spin crossover in [FeL(NCS)₂] significantly differs from the transition behaviour in the bulk phase (powder).
Dr. Dennis Wiedemann
,
A. Grohmann
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DOI
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(𝘖𝘊-6-13)-Difluoridooxidobis(propan-2-ol)(propan-2-olato)vanadium(V)
The distorted octahedral title complex was synthesized
via
ligand exchange at [VO(O
i
Pr)₃].
J. Kohl
,
Dr. Dennis Wiedemann
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DOI
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Copper(I) and Iron(II) Complexes of a Novel Tris(pyridyl)ethane-Derived N₄ Ligand: Aspects of Redox Behaviour and Bioinorganic Physicochemistry
The N₄ ligand 1-{6-[1,1-bis(pyridin-2-yl)ethyl]pyridin-2-yl}-
N
,
N
-dimethylmethanamine, its copper(I) and iron(II) complexes are presented.
Dr. Dennis Wiedemann
,
E. Świętek
,
W. Macyk
,
A. Grohmann
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DOI
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Iron(II) Complexes of Two Amine/Imine N₅ Chelate Ligands Containing a 1,4-Diazepane Core – To Crossover or Not To Crossover
Changing the spatial arrangement of donor atoms in a novel N₅ ligand system inverts the signs of the zero-field splitting parameters of the iron(II) complexes.
M. Schmidt
,
Dr. Dennis Wiedemann
,
B. Moubaraki
,
N. F. Chilton
,
K. S. Murray
,
K. R. Vignesh
,
G. Rajaraman
,
A. Grohmann
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DOI
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