Journal article
Copper(I) Complexes of Bipyridine and Terpyridine with Fluorous Tails and the Formation of Crystalline Materials with Fluorous Layers
European Journal of Inorganic Chemistry, (11), pp.1792-1796
Apr/2011
Abstract
Copper(I) complexes with perfluorinated tails, (Cu(I)L(2)AcN)-BF(4) and (Cu(I)L(3)AcN)BF(4), where L(2) = 6,6 ''-bis(perfluorohexyl)-2,2':6',2 ''-terpyridine and L(3) = 6,6' -bis(2,2,3,3,4,4, 5,5,6,6,7,7,7-tridecafluoroheptyl)-2,2'-bipyridine and AcN = acetonitrile, were synthesized and their rather unique crystal structures were elucidated. (Cu(I)L(2)AcN)BF(4) crystallizes in a low-symmetry space group, P (1) over bar, with a very large unit cell that required synchrotron radiation to locate all atoms. The molecular structure of (Cu(I)L(2)AcN)BF(4) has an asymmetric tetrahedrally distorted square-planar coordination sphere around Cu(I). Eight similar but distinct molecular structures were found. The crystal packing of (Cu(I)L(2)AcN)(BF(4)) has a layered structure with a clear segregation between the terpyridine moieties and the fluorous chains. The terpyridine units are arranged in a "back to back" fashion and tilted 20-25 degrees relative to the interlayer plane, and the layered structure is staggered with offsets of approximately 4 angstrom between layers. The molecular structure of (Cu(I)L(3)AcN)(BF(4)) features a Y-shaped trigonal planar coordination sphere around copper(I). Comparison of the structure with analogous Cu(I)(neocuproine)AcN showed that the fluorous tails with the CH(2)CH(2) spacers basically have no effect on the bond lengths and angles to Cu(1). The crystal structure of (Cu(I)L(3)AcN)(BF(4)) shows a "herring bone" conformation with an approximately 96 degrees angle in the CubipyAcN units. The "herring bone" conformation leads to an accordion-type fluorous layer.
Details
- Title
- Copper(I) Complexes of Bipyridine and Terpyridine with Fluorous Tails and the Formation of Crystalline Materials with Fluorous Layers
- Creators
- Vedichi Madhu (null)Yael Diskin Posner (null) - 972WIS_INST___100Ronny Neumann (null) - The Weizmann Institute of Science
- Resource Type
- Journal article
- Publication Details
- European Journal of Inorganic Chemistry, (11), pp.1792-1796; Apr/2011
- Number of pages
- 5
- Language
- English
- DOI
- https://doi.org/10.1002/ejic.201001296
- Grant note
- This research was supported by the Israel Science Foundation (ISF) grant 1073/10 and the Helen and Martin Kimmel Center for Molecular Design. Dr. Linda Shimon is thanked for data collection at the European Synchrotron Radiation Facility (ESRF) synchrotron in Grenoble. R. N. is the Rebecca and Israel Sieff Professor of Chemistry._ALMAME_DELIMITER_
- Record Identifier
- 993262128403596
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