Coordination networks from a bifunctional molecule containing carboxyl and thioether groups.
The bifunctional molecule tetrakis(methylthio)-1,4-benzenedicarboxylic acid (TMBD) interacts with the increasingly harder metal ions of Cu (I), Cd (II), and Zn (II) to form the coordination networks of Cu 2TMBD, CdTMBD, and Zn 4O(H 2O) 3(TMBD) 3, where the carboxyl group consistently bonds to metal ions, while the softer methylthio group binds with preference to the softer metal ions (i.e., chelation to Cu (+), single-fold coordination to Cd (2+), and nonbonding to Zn (2+)). Diffuse-reflectance spectra show that the metal-thioether interaction is associated with smaller electronic band gaps of the solid-state networks.
Zhou
Xiao-Ping
XP
Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China.
Xu
Zhengtao
Z
Zeller
Matthias
M
Hunter
Allen D
AD
Chui
Stephen Sin-Yin
SS
Che
Chi-Ming
CM
D001555:Benzene Derivatives / Q000737:chemistry*; D002264:Carboxylic Acids / Q000737:chemistry*; D003432:Cross-Linking Reagents / Q000737:chemistry*; D008670:Metals / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry; D013440:Sulfides / Q000737:chemistry*
D001555:Benzene Derivatives; D002264:Carboxylic Acids; D003432:Cross-Linking Reagents; D008670:Metals; D009942:Organometallic Compounds; D013440:Sulfides; C533406:tetrakis(methylthio)-1,4-benzenedicarboxylic acid