Electronic structure and redox properties of macrocyclic complexes [M(TAAB)]n+ (M = Ni, Cu)

1988 ◽  
Vol 23 (4) ◽  
pp. 393-399
Author(s):  
I. P. Beletskii
Keyword(s):  
Electronic Structure ◽  
Redox Properties ◽  
Macrocyclic Complexes

Covalent lanthanide(iii) macrocyclic complexes: the bonding nature and optical properties of a promising single antenna molecule

2014 ◽  
Vol 16 (47) ◽  
pp. 25978-25988 ◽  
Author(s):  
Walter A. Rabanal-León ◽  
Dayán Páez-Hernández ◽  
Ramiro Arratia-Pérez
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Coordination Compounds ◽  
Macrocyclic Ligand ◽  
Macrocyclic Complexes ◽  
Lanthanide Ions ◽  
Single Antenna ◽  
Trivalent Lanthanide

The present work is focused on the elucidation of the electronic structure, bonding and optical properties of a series of coordination compounds of type [LnIIIHAM]3+, where “LnIII” are the trivalent lanthanide ions: La3+, Ce3+, Eu3+ and Lu3+, while “HAM” is the neutral six-nitrogen macrocyclic ligand [C22N6H26].

scholarly journals New Copper and Oxomolybdate Robson-Type Polynuclear Macrocyclic Complexes: Structure, Spectroscopy, and Electrochemical Properties

2015 ◽  
Vol 2015 ◽  
pp. 1-9
Author(s):  
Marcelo Carpes Nunes ◽  
Marcos Antonio Ribeiro ◽  
Fábio Souza Nunes
Keyword(s):  
Electrochemical Properties ◽  
Macrocyclic Ligand ◽  
Metal Cations ◽  
Redox Properties ◽  
Macrocyclic Complexes ◽  
Molecular Structures ◽  
Polynuclear Complexes ◽  
Unique Mode ◽  
Macrocycle Ligand ◽  
Mode Of Coordination

The polynuclear complexes [Mo3O8(tidf)]·dmso·2H2O (1) and [{Cu2(tidf)}2(μ-Mo8O24)] (2) (tidf2−is a symmetrical tetraiminodiphenolate Robson-type macrocyclic ligand) were prepared from equimolar combinations of [Mg2(tidf)](NO3)2·4H2O, [MoO2Cl2(dmso)2] (for1) and complex1and Cu(ClO4)2·4H2O (for2) in acetonitrile. Molecular structures of both complexes were determined and showed atypical modes of coordination. A significant observation was the remarkable flexibility of the macrocycle ligand that effectively accommodated the steric demands of metal cations and the packing forces and showed a unique mode of coordination. Spectroscopic (UV-vis and FTIR) and redox properties are discussed.

scholarly journals Naphthyl-Fused Phosphepines: Luminescent Contorted Polycyclic P-Heterocycles

2019 ◽  
Author(s):  
Thomas Delouche ◽  
Réka Mokrai ◽  
Thierry Roisnel ◽  
Denis Tondelier ◽  
Bernard Geffroy ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Solid State ◽  
Phosphine Oxide ◽  
Steric Hindrance ◽  
Building Blocks ◽  
Redox Properties ◽  
Substitution Reactions ◽  
Pi Conjugated ◽  
New Family ◽  
Pi Systems

The article presents the synthesis of a new family of naphthyl-fused phosphepines through Ni-mediated C-C coupling. Interestingly, the chloro-phosphine-oxide intermediate shows strong resistance toward oxidation/hydrolysis due to a combination of steric hindrance and pnictogen interactions. However it can undergo substitution reactions under specific conditions. The optical / redox properties and the electronic structure of these new pi-systems were studied experimentally and computationally. Taking advantage of the luminescence of these derivatives, a blue emitting OLED has been prepared highlighting that these novel pi-conjugated P-heterocycles appear as promising building blocks for solid-state lightning applications.

scholarly journals Naphthyl-Fused Phosphepines: Luminescent Contorted Polycyclic P-Heterocycles

2019 ◽  
Author(s):  
Thomas Delouche ◽  
Réka Mokrai ◽  
Thierry Roisnel ◽  
Denis Tondelier ◽  
Bernard Geffroy ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Solid State ◽  
Phosphine Oxide ◽  
Steric Hindrance ◽  
Building Blocks ◽  
Redox Properties ◽  
Substitution Reactions ◽  
Pi Conjugated ◽  
New Family ◽  
Pi Systems

The article presents the synthesis of a new family of naphthyl-fused phosphepines through Ni-mediated C-C coupling. Interestingly, the chloro-phosphine-oxide intermediate shows strong resistance toward oxidation/hydrolysis due to a combination of steric hindrance and pnictogen interactions. However it can undergo substitution reactions under specific conditions. The optical / redox properties and the electronic structure of these new pi-systems were studied experimentally and computationally. Taking advantage of the luminescence of these derivatives, a blue emitting OLED has been prepared highlighting that these novel pi-conjugated P-heterocycles appear as promising building blocks for solid-state lightning applications.

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