Jump to main content
US EPA
United States Environmental Protection Agency
Search
Search
Main menu
Environmental Topics
Laws & Regulations
About EPA
Health & Environmental Research Online (HERO)
Contact Us
Print
Feedback
Export to File
Search:
This record has one attached file:
Add More Files
Attach File(s):
Display Name for File*:
Save
Citation
Tags
HERO ID
623289
Reference Type
Journal Article
Title
Di-, Tetra-, and Hexanuclear Hydroxy-Bridged Copper(II) Cluster Compounds: Syntheses, Structures, and Properties
Author(s)
Xing, L; Deyi, C; Jianli, L; Zhifeng, L; Yueqing, Z
Year
2008
Is Peer Reviewed?
Yes
Journal
Crystal Growth & Design
ISSN:
1528-7483
EISSN:
1528-7505
Volume
8
Issue
8
Page Numbers
2853-2861
Abstract
Self-assembly reactions of copper (II) ions, dicarboxylate (adipate or terephthalate) and terminal ligands (4,4′-bipyridine or phenanthroline) yielded three hydroxy-bridged Cu(II) cluster complexes: [Cu(phen)(OH)(H 2O)] 2·(C 8H 4O 4)·8H 2O ( 1), [Cu 4(bpy) 4(OH) 4(H 2O) 2]·(C 8H 4O 4) 2·6H 2O ( 2) and [Cu 6(bpy) 6(OH) 6(H 2O) 2]·(C 6H 8O 4) 3·23H 2O ( 3) (phen = phenanthroline, bpy = 2,2′-bipyridine, C 8H 6O 4= terephthalic acid, C 6H 10O 4= adipic acid). Single crystal X-ray diffraction analyses reveal that complex 1is a discrete dinuclear Cu 2O 2motif, 2presents a discrete chairlike tetranuclear copper(II) Cu 4O 4core formed by two Cu 2O 2units, and 3assumes a discrete hexameric copper(II) Cu 6O 6cluster consisting of three Cu 2O 2units. The polynuclear structures are generated from the Cu(II) ions linked by the µ 2- and/or µ 3-OH groups. In 1− 3, all Cu(II) ions show square pyramidal coordination geometry, and the dicarboxylate ions act as counteranions to keep the whole structure neutral. Thermogravimetric analyses (TGA) and magnetic properties of 1− 3were studied, respectively. [ABSTRACT FROM AUTHOR] Copyright of Crystal Growth & Design is the property of American Chemical Society and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts)
Keywords
COPPER compounds; COPPER ions; LIGANDS; BIPYRIDINE; HYDROXYLATION; COMPLEX compounds; TEREPHTHALIC acid; X-rays -- Diffraction
Home
Learn about HERO
Using HERO
Search HERO
Projects in HERO
Risk Assessment
Transparency & Integrity