Presence of a static Jahn-Teller distortion in copper(II) terpyridine complexes. 1. Crystal structure of diterpyridinecopper(II) nitrate

Tetracyanoquinodimethanido Derivatives of (Terpyridine)‐ and (Phenanthroline)metal Complexes − Structural and Magnetic Studies of Radical‐Ion Salts

“…The parent reagents [M(terpy) 2 ](NO 3 ) 2 , [43,62] [M(phen) 3 ](NO 3 ) 2 , [63] LiTCNQ [64] and (NEt 3 H)(TCNQ) 2 [64] were obtained by the published methods and their purities were checked by elemental analysis. Elemental analyses were carried out by the Servicio de Microanálisis of the Universidad Complutense de Madrid.…”

Steric Control of the Electronic Ground State in Six-Coordinate Copper(II) Complexes

“…Oxygen nucleophiles are interesting candidates since their reaction with achiral epoxides provides an effective route to valuable chiral building blocks such as 1,2-diol derivatives. [3] Quite recently Jacobsen et al reported the enantioselective ring opening of symmetrical epoxides with carboxylic acids, and an efficient kinetic resolution of racemic terminal epoxides with water by using a (salen)Co ii catalyst (salen N,N'-bis(salicylidene)ethylenediamine dianion). [4] However, this type of reaction has not been realized so far with alcohols or phenols.…”

“…[1,2] The salts [Cu(terpy) 2 ]X 2 (terpy 2,2':6',2''-terpyridyl; X NO À 3 , [3] PF À 6 , [4] Br À [5] ) were long believed to exhibit this property in the solid state, [1] since this complex has a compressed rhombic geometry along the molecular z axis according to room-temperature crystallography (Scheme 1), whereas its room-temperature powder EPR spectra exhibit an ªinverseº g c b g k b g e pattern. [5] However, detailed EPR studies have shown that these observations in fact reflect a dynamically disordered axis of elongation about the molecular x and y vectors.…”

VIVO and CuII complexation by ligands based on pyridine nitrogen donors

“…35 In the presence of an excess of ligand a bis-chelated complex [Cu(terpy) 2 ] 2+ is formed. The crystal structure of this complex has been reported, 65 and its EPR spectrum discussed elsewhere. 66 3.8.…”