TY - JOUR
T1 - Catalytic transesterification reactions of one-dimensional coordination polymers containing paddle-wheel-type units connected by various bridging ligands
AU - Hwang, In Hong
AU - Jo, Young Dan
AU - Kim, Hyun
AU - Kim, Kyeong Beom
AU - Jung, Kwang Deog
AU - Kim, Cheal
AU - Kim, Youngmee
AU - Kim, Sung Jin
PY - 2013
Y1 - 2013
N2 - The paddle-wheel dinuclear unit consists of two CuII ions bridged by four benzoate ligands, and these paddle-wheel [Cu2(O 2CPh)4] units are connected by various bridging ligands to form one-dimensional chained compounds formulated as [Cu2(O 2CPh)4(μ-L)] (L = 2,4-bpe (1), 3,3'3′-dipicam (3), 2,5-Me2pyz (4), pyz (5), 4,4'4′-bpy (6), and 4-pds (7)). The compound 2, formulated as [[Cu2(O2CPh) 4][Cu(O2CPh)2](μ-bpp)2], consists of alternating units of [Cu2(O2CPh)4] and [Cu(O2CPh)2] connected by via bpp. Compounds 1-5 and 7 efficiently catalyzed the transesterification of a variety of esters, while it has been reported that Cu-containing complexes or coordination polymers do not usually show catalytic activities for the transesterification reactions. Among these compounds, 2 was most effective. It has been proposed that in the transesterification reaction, a mononuclear type of Cu complex might be the major species of compound 2 in solution, while for all other compounds, a paddle-wheel unit might be the major reactive species.
AB - The paddle-wheel dinuclear unit consists of two CuII ions bridged by four benzoate ligands, and these paddle-wheel [Cu2(O 2CPh)4] units are connected by various bridging ligands to form one-dimensional chained compounds formulated as [Cu2(O 2CPh)4(μ-L)] (L = 2,4-bpe (1), 3,3'3′-dipicam (3), 2,5-Me2pyz (4), pyz (5), 4,4'4′-bpy (6), and 4-pds (7)). The compound 2, formulated as [[Cu2(O2CPh) 4][Cu(O2CPh)2](μ-bpp)2], consists of alternating units of [Cu2(O2CPh)4] and [Cu(O2CPh)2] connected by via bpp. Compounds 1-5 and 7 efficiently catalyzed the transesterification of a variety of esters, while it has been reported that Cu-containing complexes or coordination polymers do not usually show catalytic activities for the transesterification reactions. Among these compounds, 2 was most effective. It has been proposed that in the transesterification reaction, a mononuclear type of Cu complex might be the major species of compound 2 in solution, while for all other compounds, a paddle-wheel unit might be the major reactive species.
KW - Catalyst
KW - Coordination polymers
KW - Transesterification
UR - http://www.scopus.com/inward/record.url?scp=84877072520&partnerID=8YFLogxK
U2 - 10.1016/j.ica.2013.03.043
DO - 10.1016/j.ica.2013.03.043
M3 - Article
AN - SCOPUS:84877072520
SN - 0020-1693
VL - 402
SP - 39
EP - 45
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
ER -