TY - JOUR
T1 - Coordination polymers and metallomacrocycles based on bis(pyridylcarbamate) ligands with flexible glycol spacers
AU - Xia, Yana
AU - Li, Shaoguang
AU - Wu, Biao
AU - Liu, Yanyan
AU - Yang, Xiao Juan
PY - 2011/10/7
Y1 - 2011/10/7
N2 - Six metal-organic coordination polymers or metallomacrocycles, [Zn 2Cl4(L2)2]·3H2O (1), [Zn2Br4(L2)2]·0.5H 2O (2), {[Cu(L2)2(H2O) 2](NO3)2·4H2O·4CH 3OH}n (3), [Zn2Br4(L 3)2] (4), (ZnBr2L4)n (5) and (ZnBr2L5)n (6), were prepared from zinc(ii) or copper(ii) salts with flexible bis(pyridylcarbamate) ligands L2 to L5 [L2 = 3-pyridyl-carbamic-acid-oxydi-1,2- ethanediylester, L3 = 3-pyridinyl-carbamic-acid-1,2-ethanediyl- bis(oxy-2,1-ethanediyl)ester, L4 = 3-pyridinyl-carbamic-acid-1,3- propanediylester and L5 = 3-pyridinyl-carbamic-acid-1,4- butanediylester]. Compounds 1, 2 and 4 are hydrogen-bonded 3D porous nanotubular structures composed of metallomacrocycles. Compound 3 has a racemic framework formed by 2D homochiral layers. Compound 5 is a 1D meso-helical chain and 6 is a 1D linear chain, both of which are further connected by N-H⋯O and C-H⋯O hydrogen bonds and π-π interactions into 3D frameworks. The highly flexible bis(pyridylcarbamate) ligands show dramatically different conformations with various metal ions and counteranions, thus leading to the structural diversity of these complexes.
AB - Six metal-organic coordination polymers or metallomacrocycles, [Zn 2Cl4(L2)2]·3H2O (1), [Zn2Br4(L2)2]·0.5H 2O (2), {[Cu(L2)2(H2O) 2](NO3)2·4H2O·4CH 3OH}n (3), [Zn2Br4(L 3)2] (4), (ZnBr2L4)n (5) and (ZnBr2L5)n (6), were prepared from zinc(ii) or copper(ii) salts with flexible bis(pyridylcarbamate) ligands L2 to L5 [L2 = 3-pyridyl-carbamic-acid-oxydi-1,2- ethanediylester, L3 = 3-pyridinyl-carbamic-acid-1,2-ethanediyl- bis(oxy-2,1-ethanediyl)ester, L4 = 3-pyridinyl-carbamic-acid-1,3- propanediylester and L5 = 3-pyridinyl-carbamic-acid-1,4- butanediylester]. Compounds 1, 2 and 4 are hydrogen-bonded 3D porous nanotubular structures composed of metallomacrocycles. Compound 3 has a racemic framework formed by 2D homochiral layers. Compound 5 is a 1D meso-helical chain and 6 is a 1D linear chain, both of which are further connected by N-H⋯O and C-H⋯O hydrogen bonds and π-π interactions into 3D frameworks. The highly flexible bis(pyridylcarbamate) ligands show dramatically different conformations with various metal ions and counteranions, thus leading to the structural diversity of these complexes.
UR - http://www.scopus.com/inward/record.url?scp=80052773823&partnerID=8YFLogxK
U2 - 10.1039/c1ce05392b
DO - 10.1039/c1ce05392b
M3 - Article
AN - SCOPUS:80052773823
SN - 1466-8033
VL - 13
SP - 5763
EP - 5772
JO - CrystEngComm
JF - CrystEngComm
IS - 19
ER -