✦ LIBER ✦

Lanthanide Triple Helical Complexes with a Chiral Bis(benzimidazole)pyridine Derivative

✍ Scribed by Gilles Muller; James P. Riehl; Kurt J. Schenk; Gérard Hopfgartner; Claude Piguet; Jean-Claude G. Bünzli

Publisher: John Wiley and Sons
Year: 2002
Tongue: English
Weight: 196 KB
Volume: 2002
Category: Article
ISSN: 1434-1948
DOI: 10.1002/1099-0682(200212)2002:12<3101::aid-ejic3101>3.0.co;2-9

No coin nor oath required. For personal study only.

✦ Synopsis

The ligand neopentyl 2,6-bis[(1-methylbenzimidazol-2-yl)]pyridine-4-carboxylate (L 12 ) has been synthesised to test the effect of the chiral neopentyl ester group in the 4-position of the pyridine ring on (i) the helical wrapping, (ii) the diastereomeric induction and (iii) the thermodynamic and photophysical properties of the [Ln(L 12 ) 3 ] 3+ complexes. The crystal structure of ligand L 12 shows the expected trans-trans conformation of the tridentate binding unit. The ligand forms stable 1:3 complexes in anhydrous acetonitrile (logβ 3 in the range 17.3-19.0, logK 3 in the range 2.9-4.6). The triple helical structure in solution is responsible for the four times

📜 SIMILAR VOLUMES

Structural, Photophysical and Chiro-Opti

Structural, Photophysical and Chiro-Optical Properties of Lanthanide Complexes with a Bis(benzimidazole)pyridine-Based Chiral Ligand

✍ Gilles Muller; Christine L. Maupin; James P. Riehl; Henrik Birkedal; Claude Pigu 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 191 KB 👁 1 views

Self-Assembled Triple-Stranded Lanthanid

Self-Assembled Triple-Stranded Lanthanide Dimetallic Helicates with a Ditopic Ligand Derived from Bis(benzimidazole)pyridine and Featuring an (4-Isothiocyanatophenyl)ethynyl Substituent

✍ Raphaël Tripier; Marcel Hollenstein; Mourad Elhabiri; Anne-Sophie Chauvin; Gaël 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 German ⚖ 167 KB 👁 2 views

Predetermined Helical Chirality in Octah

Predetermined Helical Chirality in Octahedral Complexes with a Novel Pentadentate C2-Symmetrical Chiral Bis(oxazoline) Ligand

✍ Michael Seitz; Anja Kaiser; Douglas R. Powell; Andrew S. Borovik; Oliver Reiser 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 215 KB 👁 2 views

ChemInform Abstract: Novel Ruthenium-Pyr

ChemInform Abstract: Novel Ruthenium-Pyridinedicarboxylate Complexes of Terpyridine and Chiral Bis(oxazolinyl)pyridine: A New Catalytic System for Alkene Epoxidation with [Bis(acetoxy)iodo]benzene as an Oxygen Donor.

✍ H. NISHIYAMA; T. SHIMADA; H. ITOH; H. SUGIYAMA; Y. MOTOYAMA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 35 KB 👁 1 views

Self-Assembly of a Mesogenic Polyamide:

Self-Assembly of a Mesogenic Polyamide: Induction and Significant Stabilization of a Liquid-Crystalline Phase through Complexation of a Phenylbenzoic Acid with a Polymer Backbone Derived from 2,6-Bis(amino)pyridine Units

✍ Dr. Takashi Kato; Yasuo Kubota; Prof. Toshiyuki Uryu; Dr. Seiji Ujiie 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 256 KB 👁 2 views