Synthesis of R-(-)-2-Ethyl-N-benzyl (monoaza-15-crown-5) and the Crystal Structure of Its Sodium Perchlorate Complex |
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| Authors: | Süheyla Özbey Halil Hoşgören Yilmaz Turgut Giray Topal |
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| Institution: | (1) Department of Engineering Physics, Faculty of Engineering, Hacettepe University, 06532 Beytepe, Ankara, Turkey;(2) Department of Chemistry, Faculty of Arts and Sciences, University of Dicle, 21280 Diyarbakir, Turkey;(3) Department of Chemistry, Faculty of Education, University of Dicle, 21280 Diyarbakir, Turkey |
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| Abstract: | A new complex of a chiral monoaza-crown ether, R-(-)-2-ethyl-N-benzyl-4,7,10,13-tetraoxa-1-azacyclopentadeceane) NaClO4], has been prepared and studied by x-ray diffraction. The compound crystallizes in space group P21 with cell dimensions a = 9.480(1), b = 15.978(2), c = 15.816(2) Å,  = 105.51(1)°, Z = 4. The final R value is 0.055 for 2711 observed reflections and 540 parameters. There are twomolecules in the asymmetric unit labelled A and B. The sodium ion is hexacoordinated. The average values for the Na–-Oeth (etheric) distances are 2.364(6), 2.317(7) Å and the Na–N distances are 2.679(6), 2.611(7) Å; the Na–-O(ClO4) contacts are2.497(7) and 2.257(10) Å, for A and B, respectively. |
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| Keywords: | chiral crown ether crystal structure monoaza-15-crown-5 sodium complex |
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