A donor–acceptor model of Ln(III) complexation with terdentate nitrogen planar ligands

Square-planar rhodium(I) complexes with aromatic bent terdentate nitrogen ligands as candidates for rod-like extended materials†

a Department of Inorganic, Analytical and Applied Chemistry, University of Geneva, 30 quai E. Ansermet, CH-1211 Geneva 4, Switzerland. E-mail: [email protected] b Laboratory of X-ray Crystallography, 24 quai E. Ansermet, CH-1211 Geneva 4, Switzerland c Institute of Inorganic and Analytical Chemistry, University of Lausanne, BCH 1402, CH-1015 Lausanne, Switzerland d F. Hoffmann-La Roc...

Protonation and complexation properties of polyaromatic terdentate six-membered chelate ligands.

The successive protonation steps occurring in 2,2′;6′,2″-terpyridine (L1) are characterized by a strong affinity for the first entering proton (ΔG(connect)(H,L1) = −17 kJ/mol) followed by allosteric anticooperativity (ΔE(interaction)(H,H,L1) = 6 kJ/mol), a behavior mirrored by 2,6-bis(azaindolyl)pyridine (L2) despite the extension of the chelate ring size from five members (L1) to six members (...

The complexation of rhodium(III) with acyclic diaminedithioether (DADTE) ligands.

(103)Rhodium(III) complexes derived from seven acyclic tetradentate N(2)S(2) ligands (one diaminedithiol and six diaminedithioether ligands) have been synthesized and characterized. Structural variations in the ligand include the length of carbon backbone between the coordinating atoms (222; 232; 323; 333), the presence or absence of gem-dimethyl groups α to sulfur, and the nature of the organi...

Complexation of Iron(III) by Phosphonocarboxylate Ligands

investigating the feasibility of a proposed model for geometric design of deployable arch structures

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...