Structure, Magnetism, and Theoretical Study of a Mixed-Valence CoII3CoIII4 Heptanuclear Wheel: Lack of SMM Behavior despite Negative Magnetic Anisotropy

LF Chibotaru, L Ungur, C Aronica… - Journal of the …, 2008 - ACS Publications
A mixed-valence Co (II)/Co (III) heptanuclear wheel [CoII3CoIII4 (L) 6 (MeO) 6](LH2= 1, 1, 1-
trifluoro-7-hydroxy-4-methyl-5-aza-hept-3-en-2-one) has been synthesized and its crystal …

A nonanuclear dysprosium (III)–copper (II) complex exhibiting single‐molecule magnet behavior with very slow zero‐field relaxation

C Aronica, G Pilet, G Chastanet… - Angewandte Chemie …, 2006 - Wiley Online Library
The discovery that some metal coordination clusters may behave as single-molecule
magnets (SMMs)[1–4] is currently stimulating abundant research in relation to potential …

Continuous symmetry breaking induced by ion pairing effect in heptamethine cyanine dyes: beyond the cyanine limit

PA Bouit, C Aronica, L Toupet… - Journal of the …, 2010 - ACS Publications
The association of heptamethine cyanine cation 1+ with various counterions A (A= Br−, I−,
PF6−, SbF6−, B (C6F5) 4−, TRISPHAT) was realized. The six different ion pairs have been …

Synthesis and Characterization of Cs2Mo6X14 (X = Br or I) Hexamolybdenum Cluster Halides: Efficient Mo6 Cluster Precursors for Solution Chemistry Syntheses

K Kirakci, S Cordier, C Perrin - Zeitschrift für anorganische und …, 2005 - Wiley Online Library
Abstract Cs2Mo6Br14 (1) and Cs2Mo6I14 (2) have been synthesized by solid state
chemistry techniques and structurally characterized by single crystal X‐ray diffraction. They …

Catalytic Enantioselective Aza‐Diels‐Alder Reactions of Imines‐An Approach to Optically Active Nonproteinogenic α‐Amino Acids

S Yao, S Saaby, RG Hazell… - Chemistry–A European …, 2000 - Wiley Online Library
A catalytic enantioselective aza‐Diels‐Alder reaction of imines has been developed. The
reaction of N‐tosyl α‐imino ester with different dienes including activated, non‐activated …

Catalytic enantioselective inverse-electron demand 1, 3-dipolar cycloaddition reactions of nitrones with alkenes

KB Simonsen, P Bayón, RG Hazell… - Journal of the …, 1999 - ACS Publications
A general reaction protocol for catalytic enantioselective 1, 3-dipolar cycloaddition reaction
of nitrones, activated by chiral Lewis acids, with electron-rich alkenes has been developed …

A Mixed-Valence Polyoxovanadate (III, IV) Cluster with a Calixarene Cap Exhibiting Ferromagnetic V (III)− V (IV) Interactions

C Aronica, G Chastanet, E Zueva… - Journal of the …, 2008 - ACS Publications
A series of compounds (cat)[V6O6 (OCH3) 8 (calix)(CH3OH)] was obtained under anaerobic
conditions and solvothermal reaction of VOSO4 with p-tert-butylcalix [4] arene (calix) in …

Catalytic C− C Coupling Reactions at Nickel by C− F Activation of a Pyrimidine in the Presence of a C− Cl Bond: The Crucial Role of Highly Reactive Fluoro …

A Steffen, MI Sladek, T Braun, B Neumann… - …, 2005 - ACS Publications
Treatment of [Ni (COD) 2](COD= 1, 5-cyclooctadiene) with 5-chloro-2, 4, 6-trifluoropyrimidine
(1) in the presence of P i Pr3 or PPh3 effects the formation of the fluoro complexes trans-[NiF …

On the Intermediates in Chiral Bis(oxazoline)copper(II)‐Catalyzed Enantioselective Reactions—Experimental and Theoretical Investigations

J Thorhauge, M Roberson, RG Hazell… - … A European Journal, 2002 - Wiley Online Library
The intermediates in the chiral bis (oxazoline) copper (ii)‐catalyzed reactions have been
investigated by means of experimental and theoretical investigations. It is shown that the …

Catalytic approach for the formation of optically active allyl α-Amino acids by addition of allylic metal compounds to α-imino Esters

X Fang, M Johannsen, S Yao… - The Journal of …, 1999 - ACS Publications
A new catalytic enantioselective approach for the formation of allyl α-amino acid derivatives
by reaction of N-tosyl α-imino esters with allyl stannanes and silanes catalyzed by chiral …