Remarkable Steric Effects and Influence of Monodentate Axial Ligands L on the Spin-Crossover Properties oftrans-[FeII(N4ligand)L] Complexes

2007 ◽  
Vol 46 (10) ◽  
pp. 4079-4089 ◽  
Author(s):  
José Sánchez Costa ◽  
Kristian Lappalainen ◽  
Graham de Ruiter ◽  
Manuel Quesada ◽  
Jinkui Tang ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Steric Effects ◽  
Axial Ligands

scholarly journals Temperature dependence of the spin state and geometry in tricobalt paddlewheel complexes with halide axial ligands

2018 ◽  
Vol 47 (46) ◽  
pp. 16798-16806
Author(s):  
Anandi Srinivasan ◽  
Xiaoping Wang ◽  
Rodolphe Clérac ◽  
Mathieu Rouzières ◽  
Larry R. Falvello ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Spin State ◽  
Spin Crossover ◽  
Molecular Geometry ◽  
Axial Ligand ◽  
Paddlewheel Complexes ◽  
Axial Ligands

A series of tricobalt EMACs with halide axial ligands demonstrate diverse spin-crossover behaviors as a function of the molecular geometry and the nature of the axial ligand.

ChemInform Abstract: PHOSPHORUS-31 NMR SPECTRA OF COBALOXIMES: INFLUENCE OF ELECTRONIC AND STERIC EFFECTS OF AXIAL LIGANDS

1980 ◽  
Vol 11 (35) ◽  
Author(s):  
J. A. KARGOL ◽  
R. W. CRECELY ◽  
J. L. BURMEISTER ◽  
P. J. TOSCANO ◽  
L. G. MARZILLI
Keyword(s):  
Nmr Spectra ◽  
Steric Effects ◽  
Axial Ligands ◽  
Electronic And Steric Effects

Effect of the chemical structure of an equatorial ligand on the spin crossover properties of the Fe(III) complex with 4-styrylpyridine axial ligands

2020 ◽  
Vol 152 (1) ◽  
pp. 014306 ◽  
Author(s):  
O. A. Turanova ◽  
M. Yu. Volkov ◽  
E. N. Frolova ◽  
L. Bazan ◽  
G. G. Garifzianova ◽  
...  
Keyword(s):  
Chemical Structure ◽  
Spin Crossover ◽  
Axial Ligands ◽  
Equatorial Ligand

A five-coordinate iron(III) porphyrin complex including a neutral axial pyridine N-oxide ligand

2019 ◽  
Vol 75 (6) ◽  
pp. 717-722
Author(s):  
Melanie A. Short ◽  
Roger D. Sommer ◽  
Alec J. Falzone ◽  
Tao Huang ◽  
Walter W. Weare ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Bond Length ◽  
Spin Crossover ◽  
Bond Angle ◽  
Organic Ligand ◽  
Binding Mode ◽  
Porphyrin Complex ◽  
Axial Ligands ◽  
Crossover Behavior ◽  
Porphyrin Core

While six-coordinate iron(III) porphyrin complexes with pyridine N-oxides as axial ligands have been studied as they exhibit rare spin-crossover behavior, studies of five-coordinate iron(III) porphyrin complexes including neutral axial ligands are rare. A five-coordinate pyridine N-oxide–5,10,15,20-tetraphenylporphyrinate–iron(III) complex, namely (pyridine N-oxide-κO)(5,10,15,20-tetraphenylporphinato-κ4 N,N′,N′′,N′′′)iron(III) hexafluoroantimonate(V) dichloromethane disolvate, [Fe(C44H28N4)(C5H5NO)][SbF6]·2CH2Cl2, was isolated and its crystal structure determined in the space group P\overline{1}. The porphyrin core is moderately saddled and the Fe—O—N bond angle is 122.08 (13)°. The average Fe—N bond length is 2.03 Å and the Fe—ONC5H5 bond length is 1.9500 (14) Å. This complex provides a rare example of a five-coordinate iron(III) porphyrin complex that is coordinated to a neutral organic ligand through an O-monodentate binding mode.

Phosphorus-31 NMR spectra of cobaloximes: Influence of electronic and steric effects of axial ligands

1980 ◽  
Vol 40 ◽  
pp. 79-89 ◽  
Author(s):  
Joseph A. Kargol ◽  
Roger W. Crecely ◽  
John L. Burmeister ◽  
Paul J. Toscano ◽  
Luigi G. Marzilli
Keyword(s):  
Nmr Spectra ◽  
Steric Effects ◽  
Axial Ligands ◽  
Electronic And Steric Effects

Spin-crossover in an iron(iii) complex showing a broad thermal hysteresis

2021 ◽  
Author(s):  
Cyril Rajnák ◽  
Romana Mičová ◽  
Ján Moncoľ ◽  
Ľubor Dlháň ◽  
Christoph Krüger ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Mononuclear Complex ◽  
Hysteresis Width ◽  
Thermally Induced

A pentadentate Schiff-base ligand 3,5Cl-L2− and NCSe− form a iron(iii) mononuclear complex [Fe(3,5Cl-L)(NCSe)], which shows a thermally induced spin crossover with a broad hysteresis width of 24 K between 123 K (warming) and 99 K (cooling).

Dynamic and static muon-spin relaxation observed above and below the spin-crossover in Fe(II) complexes

2004 ◽  
Vol 114 ◽  
pp. 601-605 ◽  
Author(s):  
S. J. Blundell ◽  
T. Lancaster ◽  
F. L. Pratt ◽  
C. A. Steer ◽  
M. L. Brooks ◽  
...  
Keyword(s):  
Spin Relaxation ◽  
Spin Crossover ◽  
Muon Spin ◽  
Muon Spin Relaxation
Sign in / Sign up

Export Citation Format

Share Document