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Synthesis of an axially chiral Ir–NHC complex derived from BINAM
Author(s) -
Shi Min,
Duan WeiLiang
Publication year - 2005
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.705
Subject(s) - chemistry , orthorhombic crystal system , crystallography , tetrahydrofuran , crystal structure , axial symmetry , base (topology) , stereochemistry , solvent , organic chemistry , physics , mathematical analysis , mathematics , quantum mechanics
The Ir–NHC complex 6 was successfully synthesized from the reaction of axially chiral binaphthyl dibenzimidazolium salt 5 with [Ir(COD)Cl] 2 (COD = 1,5‐cyclooctadiene) in tetrahydrofuran in the presence of KO t Bu base under reflux. Its unique crystal structure is unambiguously disclosed by X‐ray diffraction. Complex 6 is orthorhombic, with space group P 2 1 2 1 2 1 , unit cell dimensions a = 12.1406(16) Å, b = 19.110(3) Å, c = 20.312(3) Å, α = β = γ = 90° and volume 4712.6(11) Å 3 , Z = 4, D calc = 1.930 Mg m −3 . Copyright © 2004 John Wiley & Sons, Ltd.