TY - JOUR
T1 - Synthesis, crystal structures, photoluminescence, and catalytic reactivity of novel coordination polymers (0-D, 1-D, 2-D to 3-D) constructed from cis-1,2-cyclohexanedicarboxylic acid and various bipyridyl ligands
AU - Lee, Yu Jin
AU - Kim, Eun Young
AU - Kim, Soo Hyun
AU - Jang, Seung Pyo
AU - Lee, Tae Geum
AU - Kim, Cheal
AU - Kim, Sung Jin
AU - Kim, Youngmee
PY - 2011/4
Y1 - 2011/4
N2 - Six ZnII-(e,a-cis-1,2-chdc) complexes, [Zn2(1,2-chdc) 2(2,2′-bpy)2(H2O)2] ·H2O 1, [{Zn2(1,2-chdc)2(H 2O)2(μ-bpa)}·4H2O]n2, [{Zn2(μ-1,2-chdc)2(μ-4,4′-bpy)} ·3CH3OH]n3, [{Zn2(μ-1,2-chdc) 2(μ-bpe)}·2H2O]n4, [[{Zn 2(μ-1,2-chdc)2}n-(μ-bpp)-{Zn 2(μ-1,2-hdc)2(H2O)2}] ·CH3CN·2H2O]n5, and [{Zn 2(μ-dtp)2(μ-1,2-chdc)}2·4· 5H2O]n6 (1,2-chdc = 1,2-cyclohexanedicarboxylate), with different assistant ligands (2,2′-bipyridine (2,2′-bpy), 1,2-bis(4-pyridyl)ethane (bpa), 1,2-bis(4-pyridyl)ethylene (bpe), 1,3-bis(4-pyridyl)propane (bpp), and, 4,4′-bipyridine (4,4′-bpy) and 4,4′-dithiodipyridine (dtp)) have been synthesized and their structures were determined. Depending on the assistant ligands, the structures and dimensionalities of ZnII-(e,a-cis-1,2-chdc) complexes have been varied. Two carboxylates in e,a-cis-1,2-chdc coordinate to ZnII ions with (11) or (10) connectivity. Photoluminescence study of the compounds 1-6 showed that emission spectra of compounds 1, 2, 4, and 5 were observed at 343 nm for 1, 419 nm for 2, 507 nm for 4, 396 nm for 5, respectively, while no obvious luminescences were displayed for 3 and 6. In addition, it has been found that compound 1 catalyzed the transesterification reaction of phenyl acetate with methanol, with quantitative conversion to methyl acetate, under the neutral conditions, while compounds 2-6 showed very slow conversions. The thermal stabilities of these complexes were also examined.
AB - Six ZnII-(e,a-cis-1,2-chdc) complexes, [Zn2(1,2-chdc) 2(2,2′-bpy)2(H2O)2] ·H2O 1, [{Zn2(1,2-chdc)2(H 2O)2(μ-bpa)}·4H2O]n2, [{Zn2(μ-1,2-chdc)2(μ-4,4′-bpy)} ·3CH3OH]n3, [{Zn2(μ-1,2-chdc) 2(μ-bpe)}·2H2O]n4, [[{Zn 2(μ-1,2-chdc)2}n-(μ-bpp)-{Zn 2(μ-1,2-hdc)2(H2O)2}] ·CH3CN·2H2O]n5, and [{Zn 2(μ-dtp)2(μ-1,2-chdc)}2·4· 5H2O]n6 (1,2-chdc = 1,2-cyclohexanedicarboxylate), with different assistant ligands (2,2′-bipyridine (2,2′-bpy), 1,2-bis(4-pyridyl)ethane (bpa), 1,2-bis(4-pyridyl)ethylene (bpe), 1,3-bis(4-pyridyl)propane (bpp), and, 4,4′-bipyridine (4,4′-bpy) and 4,4′-dithiodipyridine (dtp)) have been synthesized and their structures were determined. Depending on the assistant ligands, the structures and dimensionalities of ZnII-(e,a-cis-1,2-chdc) complexes have been varied. Two carboxylates in e,a-cis-1,2-chdc coordinate to ZnII ions with (11) or (10) connectivity. Photoluminescence study of the compounds 1-6 showed that emission spectra of compounds 1, 2, 4, and 5 were observed at 343 nm for 1, 419 nm for 2, 507 nm for 4, 396 nm for 5, respectively, while no obvious luminescences were displayed for 3 and 6. In addition, it has been found that compound 1 catalyzed the transesterification reaction of phenyl acetate with methanol, with quantitative conversion to methyl acetate, under the neutral conditions, while compounds 2-6 showed very slow conversions. The thermal stabilities of these complexes were also examined.
UR - http://www.scopus.com/inward/record.url?scp=79953253184&partnerID=8YFLogxK
U2 - 10.1039/c0nj00869a
DO - 10.1039/c0nj00869a
M3 - Article
AN - SCOPUS:79953253184
SN - 1144-0546
VL - 35
SP - 833
EP - 841
JO - New Journal of Chemistry
JF - New Journal of Chemistry
IS - 4
ER -