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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/7512

Title: Synthesis and complexation studies of 16-membered [1+1] selenaaza- and some related macrocycles
Authors: CHAKRABORTY, T
SRIVASTAVA, K
PANDA, S
SINGH, HB
BUTCHER, RJ
Keywords: selenium coronands
chemistry
1,5,9,13-tetraselenacyclohexadecane
selenoether
diselenide
behavior
Issue Date: 2010
Publisher: ELSEVIER SCIENCE SA
Citation: INORGANICA CHIMICA ACTA, 363(12), 2905-2911
Abstract: novel 16-membered [1+1] unsymmetrical selenaaza Schiff base macrocycle, 8,9,10,11-tetrahydo-7H-dibenzo-[d,o][1,3,7,10,13]diselenatriazacyclohexadecine (5) with N(3)Se(2) donor set, has been synthesized by cyclocondensation of di(o-formylphenylseleno)methane and diethylenetriamine. Reduction of 5 with NaBH(4) afforded 6,7,8,9,10,11,12,13-octahydro-5H-dibenzo-[d,o][1,3,7,10,13] diselenatriazacyclohexadecine (6). Macrocycle, 10,11,12,13,14,15,16,26,27,28,29,30,31,32-tetradecahydrotetrabenzo[b,k,n,w][1,13, 5,9,17,21]diselenatetraazacyclotetracosine (2b) was synthesized similarly from di(o-formylphenyl)selenide and 1,3-diaminopropane followed by reduction with NaBH4. Single crystal X-ray structures of 5 and 2b have been determined. Attempted complexation reactions of 5 with Zn(II), Cd(II), Hg(II), Pd(II) and Cu(II) ions and those of 6 with Ag(I), Hg(II) and Pd(II) ions are reported. 28-Membered selenaaza macrocycle 2c on reaction with HgCl(2) and NH(4)PF(6), provided a dinuclear Hg(II) complex 9. Complex 9 has been characterized by single crystal X-ray structure. (C) 2010 Elsevier B. V. .
URI: http://dx.doi.org/10.1016/j.ica.2010.03.020
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7512
http://hdl.handle.net/10054/7512
ISSN: 0020-1693
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