A Mixed-Ligand Coordination Polymer from the in Situ, Cu(I)-Mediated Isomerization of Bis(4-pyridyl)ethylene

Reaction of [Cu(PPh3)2(MeCN)2]PF6 and trans-1,2-bis(4-pyridyl)ethylene (bpe) results in the trans−cis isomerization of the bpe and subsequent formation of a mixed-isomer linear coordination polymer over the course of several days or weeks depending on solvent. The one unique copper atom in the struc...

Full description

Saved in:
Bibliographic Details
Published in:Inorganic chemistry 2002-11, Vol.41 (22), p.5650-5652
Main Authors: Knaust, Jacqueline M, Keller, Steven W
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Reaction of [Cu(PPh3)2(MeCN)2]PF6 and trans-1,2-bis(4-pyridyl)ethylene (bpe) results in the trans−cis isomerization of the bpe and subsequent formation of a mixed-isomer linear coordination polymer over the course of several days or weeks depending on solvent. The one unique copper atom in the structure is coordinated to two bridging cis-bpe ligands, one bridging trans-bpe ligand, and one terminal triphenylphoshine ligand to create [Cu(trans-bpe)0.5(cis-bpe)(PPh3)]+ ∞ zigzag chains. The reaction requires both visible light and Cu(I), and the crystallization of this particular coordination polymer is insensitive to the ratio of trans:cis isomers in solution, occurring both from trans-rich and cis-rich solutions.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic025836c