Structure of a Discrete 8:6 La(Iii): P-Sulfonatocalix[4]Arene Complex |
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| Authors: | Yaël Israeli Glenn P A Yap Christian Detellier |
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| Institution: | 1. Ottawa-Carleton Chemistry Institute , University of Ottawa Campus , Ottawa, Ontario, K1N 6N5, Canada;2. Thermodynamique des Solutions et des Polymères , Université Blaise Pascal , 24 avenue des Landais, 63170, Aubière, France;3. Ottawa-Carleton Chemistry Institute , University of Ottawa Campus , Ottawa, Ontario, K1N 6N5, Canada |
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| Abstract: | Abstract The crystal structure of a complex formed between La(III) and p-sulfonatocalix4]arene is reported. The complex cristallizes in the monoclinic space group P21/n, a = 15.091(1), b = 28.550(3), c = 30.167(3) Å, β = 90.008(2)°, V = 12997(2) Å3, ρcalc. (g cm?3) = 1.792, Z = 2. Refinement led to R1 value of 0.0961 for 13930 unique reflections. It forms discrete units with 8 La(III) cations coordinated by 6 calixarene ligands. The calixarenes are organized in an up-down configuration, bridged by La(III), forming layers of 3 repeating calixarene units and channels along the a axis. The units are linked by hydrogen-bonds. |
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| Keywords: | Calixarenes Lanthanum Complexes La(III) coordination water soluble calixarene |
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