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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 5
BKCSDE 33(5)
May 20, 2012 

Anion Effects on Crystal Structures of CdII Complexes Containing 2,2'-Bipyridine: Photoluminescence and Catalytic Reactivity
Hyun Min Park, In Hong Hwang, Jeong Mi Bae, Young Dan Jo, Cheal Kim,* Ha-Yeong Kim, Youngmee Kim,* Sung-Jin Kim
CdII complexes, Photoluminescence, 2,2'-Bipyridine, Catalyst, Transesterification
Anion effects on structures of CdII complexes containing 2,2'-bipyridine (2,2'-bpy) ligands have been studied, and compared with ZnII-(2,2'-bpy) complexes. For each anion, different structures have been obtained in both ZnII-(2,2'-bpy) and CdII-(2,2'-bpy). Polymeric structures of CdII-2,2'-bpy complexes can be produced by hydrogen bonding interactions as shown in ZnII-2,2'-bpy complexes. In addition, the bigger size of a CdII ion gives higher coordination numbers forming variety of structures, and it makes that chlorides can act as bridging ligands to form a one-dimensional structure. The compound 5 catalyzed efficiently the transesterification of a variety of esters with methanol, while the rest of the compounds have displayed very slow conversions. In addition, the emission bands of complexes 1, 2, 4, and 6 are blue-shifted compared to the corresponding ligand 2,2'-bpy, whereas 3 and 5 showed the similar emission observed for the ligand.
1517 - 1522
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