Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ica.2003.11.004
Title: Synthesis, characterization and crystal structures of Cu(II) and Pd(II) complexes of the pentadentate mixed donor macrocycle, [17]aneNO 2S2
Authors: Vetrichelvan, M. 
Lai, Y.-H. 
Mok, K.F. 
Keywords: Aza-oxa-thia macrocycle
Coordination chemistry
Copper and palladium complexes
HSAB concept
X-ray crystal structures
Issue Date: 25-Mar-2004
Citation: Vetrichelvan, M., Lai, Y.-H., Mok, K.F. (2004-03-25). Synthesis, characterization and crystal structures of Cu(II) and Pd(II) complexes of the pentadentate mixed donor macrocycle, [17]aneNO 2S2. Inorganica Chimica Acta 357 (5) : 1397-1404. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ica.2003.11.004
Abstract: An aza-oxa-thia macrocycle, 5,14-dioxa-2,17-dithia[6](1,2)benzeno[6](2,6) pyridinophane, L1, the related smaller macrocycle 2,14-dithia-11-oxa-[3](1,2) benzeno[6](2,6)pyridinophane, L2, and the complexes with Pd(II) and Cu(II) of the macrocycle, L1, have been synthesized. The crystal structure of L2 and those of the two metal complexes have been determined. In the complexes, the metal ions adopt exclusively square planar geometry in which the pyridine nitrogen, two sulfurs and one chlorine atom are coordinated and there is no appreciable interaction with the oxygen donors. Thus, the 'hard-soft acid-base' principle is illustrated by the behaviour of L1. The structures of both complexes are compared with the previously reported mixed aza-thia macrocycle, 2,5,14,17-tetrathia[6](1,2)benzeno[6](2,6)pyridinophane. The crystal structure of the smaller macrocycle, L2, is also discussed and due to the nature of its smaller cavity, attempts to make complexes with it have not been successful. © 2003 Elsevier B.V. All rights reserved.
Source Title: Inorganica Chimica Acta
URI: http://scholarbank.nus.edu.sg/handle/10635/114400
ISSN: 00201693
DOI: 10.1016/j.ica.2003.11.004
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