Direct crystallographic evidence of the reversible photo-formation and thermo-rupture of a coordination bond inducing spin-crossover phenomenon

2017 ◽  
Vol 53 (84) ◽  
pp. 11588-11591 ◽  
Author(s):  
David Aguilà ◽  
Pierre Dechambenoit ◽  
Mathieu Rouzières ◽  
Corine Mathonière ◽  
Rodolphe Clérac
Keyword(s):  
Spin Crossover ◽  
Coordination Bond ◽  
Reversible Formation ◽  
Metal Ligand ◽  
Ligand Bond

The reversible formation and rupture of a metal–ligand bond in an iron(ii) complex was studied using crystallography in relation with its spin-crossover properties.

Towards synergy between spin-crossover and metal–ligand bond break in molecular crystals: structural investigations of eight seven-coordinated Fe(ii) macrocyclic complexes

CrystEngComm ◽  
2015 ◽  
Vol 17 (22) ◽  
pp. 4075-4079 ◽  
Author(s):  
Hongfeng Wang ◽  
Arnaud Grosjean ◽  
Chiara Sinito ◽  
Abdellah Kaiba ◽  
Chérif Baldé ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Molecular Crystals ◽  
Macrocyclic Complexes ◽  
Structural Investigations ◽  
Metal Ligand ◽  
Ligand Bond

A reversible metal–ligand bond break associated to a spin-crossover

2007 ◽  
pp. 3723 ◽  
Author(s):  
Philippe Guionneau ◽  
Frédéric Le Gac ◽  
Abdellah Kaiba ◽  
José Sánchez Costa ◽  
Daniel Chasseau ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Metal Ligand ◽  
Ligand Bond

The Crystal and Molecular Structures of Two Modifications of cis-Dichloro-mer-tris-(dimethylphenylphosphine)hydridoiridium(III)

1988 ◽  
Vol 41 (3) ◽  
pp. 283 ◽  
Author(s):  
GB Robertson ◽  
PA Tucker
Keyword(s):  
Heavy Atom ◽  
Molecular Structures ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
X Ray ◽  
Bond Lengths ◽  
Metal Ligand ◽  
Ligand Bond

The structures of two crystalline modifications of mer -(Pme2Ph)3H-cis-Cl2IrIII, (1), have been determined from single-crystal X-ray diffraction data. Modification (A) is monoclinic, space group P21/c with a 12.635(1), b 30.605(3), c 14.992(2)Ǻ, β 110.01(2)° and Z = 8. Modification (B) is orthorhombic, space group Pbca with a 27.646(3), b 11.366(1), c 17.252(2)Ǻ and Z = 8. The structures were solved by conventional heavy atom techniques and refined by full-matrix least- squares analyses to conventional R values of 0.037 [(A), 8845 independent reflections] and 0.028 [(B), 5291 independent reflections]. Important bond lengths [Ǻ] are Ir -P(trans to Cl ) 2.249(1) av. (A) and 2.234(1) (B), Ir -P(trans to PMe2Ph) 2.339(2) av. (A) and 2.344(1), 2.352(1) (B), Ir-Cl (trans to H) 2.492(2), 2.518(2) (A) and 2.503(1) (B) and Ir-Cl (trans to PMe2Ph)2.452(2) av. (A) and 2.449(1)(B). Differences in chemically equivalent metal- ligand bond lengths emphasize the importance of non-bonded contacts in determining those lengths.

Thermochemical Aspects of Organotransition Metal Chemistry. Insights Provided by Metal-Ligand Bond Enthalpies

1990 ◽  
pp. 113-125 ◽  
Author(s):  
Michel R. Gagne ◽  
Steven P. Nolan ◽  
Afif M. Seyam ◽  
David Stern ◽  
Tobin J. Marks
Keyword(s):  
Metal Chemistry ◽  
Metal Ligand ◽  
Ligand Bond

Role of Metal–Ligand Bond Strength and Phase Separation on the Mechanical Properties of Metallopolymer Films

2013 ◽  
Vol 46 (14) ◽  
pp. 5416-5422 ◽  
Author(s):  
Aaron C. Jackson ◽  
Frederick L. Beyer ◽  
Samuel C. Price ◽  
B. Christopher Rinderspacher ◽  
Robert H. Lambeth
Keyword(s):  
Mechanical Properties ◽  
Phase Separation ◽  
Bond Strength ◽  
Metal Ligand ◽  
Ligand Bond

Thermodynamics of metal-ligand bond formation. XII. Adducts of Monothio-β-diketone complexes with pyridine and bipyridine

1974 ◽  
Vol 27 (6) ◽  
pp. 1351 ◽  
Author(s):  
DR Dakternieks ◽  
DP Graddon
Keyword(s):  
Thermodynamic Data ◽  
Benzene Solution ◽  
Bond Formation ◽  
Enthalpies Of Formation ◽  
Calorimetric Titration ◽  
Metal Ligand ◽  
Ligand Bond

Thermodynamic data are reported for the addition of pyridine and bipyridine in benzene solution to monothio-β-diketone complexes, ML2, of nickel(11), copper(11), zinc(11) and mercury(11). NiL2 gives NiL2(py)2 and NiL(bpy); ZnL2 gives ZnL2(py) and ZnL2(bpy); in both cases the data show that bipyridine is bidentate. CuL2 gives CuL2 (py) and CuL2 (bpy), with almost equal enthalpies of formation, but the higher stability of CuL2(bpy) shows bipyridine is probably bidentate. HgL2 gives HgL2(py) and a reaction with bipyridine which shows that an extremely unstable adduct is formed. All data were obtained by calorimetric titration.

Thermodynamics of metal-ligand bond formation

1977 ◽  
Vol 132 (1) ◽  
pp. 1-7 ◽  
Author(s):  
D.P. Graddon ◽  
J. Mondal
Keyword(s):  
Bond Formation ◽  
Metal Ligand ◽  
Ligand Bond
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