Complex Formation of Bis(salicylidene)ethylenediamine (Salen type ligand) with Cupper(II) Ions in Different Solvents: Spectrophotometric and Conductometric Study

Document Type : Research Paper

Authors

1 Chemistry Department, Faculty of Science, University of Benghazi

2 Chemistry Department, Faculty of Science, Misurata University, Misurata-Libya

Abstract

The complexation reaction between salen (Bis(salicylidene)ethylenediamine) and Cu(II) cations in methanol (MeOH), 2-propanol (2-PrOH), acetonitrile (AN), tetrahydrofuran (THF), and chloroform (CHCl3) as nonaqueous solvents at 25º C has been investigated. The stoichiometry and formation constants of complexes have been determined spectrophotometrically and conductometrically by method of continuous variations and mole ration method. The stoichiometry of Cu(II)-salen complexes in all solvents were 1:1 (ML) type using the two methods. By method of continuous variation, chloroform > 2-propanol > methanol ~ acetonitrile ~ tetrahydrofuran. However, by mole ratio method, the order of stability was as follows: chloroform ~ tetrahydrofuran > 2-propanol > methanol ~ acetonitrile. The resulting average of pKf values in each solvent using the two spectrophotometric methods was as follows: 7.40, 6.89, 6.8, 6.22, and 6.18 for chloroform, 2-propanol, tetrahydrofuran, acetonitrile, and methanol, respectively. The Cu(II) cation formed a more stable complex with salen in chloroform. However, the less stable complex was in methanol.

Keywords

References

[1] M. Andruh, Dalton Trans., 44, 16633, (2015).
[2] H.B. Shawish, Y.W.Wan, L.W. Yi, W.L. Sheng, Y.L. Chung, P. Hassandarvish, A.L. Phan, F.W. Won, H. Wang, I.C. Paterson, C.K. Ea, M.R. Mustafa, M.J. Maah, Plos. One., 9, 100933, (2014).
[3] N.R. Bader, Rasayan J. Chem., 3, 660, (2010).
[4] M.M. Belmonte, S.J. We-zenberg, R.M. Haak, D. Anselmo, E.C. Escudero-Adan, J. Benet- Buchholz, A.W. Kleij, Dalton Trans., 39, 4541, (2010).
[5] P.G. Cozzi, Chem. Soc. Rev., 33, 410, (2004).
[6] T.P. Camargo, R.A. Peralta, R. Moreira, E.E. Castellano, A.J. Bortoluzzi, A. Neves, Inorg. Chem. Commun., 37, 34, (2013).
[7] A.W. Kleij, Eur. J. Inorg. Chem., 2, 193 (2009).
[8] Y.Y. Ge, G.B. Li, H.C. Fang, X.L. Zhan, Z.G. Gu, J.H. Chen, F. Sun, Y.P. Cai, P.K. Thallapally, Cryst. Growth Des., 10, 4987, (2010).–4994
[9] A. Erxleben, Inorg. Chim. Acta., 472, 40, (2018).
[10] F. Coleman, D. Dux, A. Erxleben, Z. Anorg. Allg. Chem., 639, 1584, (2013).
[11] I. Ali, W.A. Wani, Synth React Tnorg M Journal, 43, 1162, (2013).
[12] R. Ravichandran, M. Rajendran, D. Devapiriam, Food Chem., 146, 472, (2014).
[13] S. Sonkamble, Adv Appl Sci Res., 5, 171, (2014).
[14] M. Rezayi, S. Ahmadzadeh, A. Kassim, L.Y. Heng, Int. J. Electrochem. Sci., 6, 6350, (2011).
[15] H.H. Buschmann, Inorg. Chim. Acta., 195, 51, (1992).
[16] G. Rounaghi, A. Sarafraz, Z. Monsef, J. Inclusion Phenom., 43, 231, (2002).
[17] D.K. Ryan, J.H. Weber, Anal. Chem., 54, 986, (1982).
18) K.M. Elsherif, A. El-Hashani, A. El-Dali, O. Dakhil, A. Najar, and M. Algeriani, Chem. Sci. Trans., 3, 1221, (2014).
19) K.M. Elsherif, A. Najar, H. Shuwat, and E. Bazina, J. App. Chem. Sci. Int., 7, 181, (2016).
[20] K.M. Elsherif, H.I. Shuwat, and A. Najar, Eur. J. Anal. Chem., 12, 67, (2017).
[21]K. M. Elsherif, A. Zubi, A. Najar, E. Bazina, To Chem., 1, 214, (2018).
[22] P. Job, Ann. Chim., 113 , 203, (1928 )
[23] J. H. Yoe and A. L. Jones , Ind. Eng. Chem. Anal. Ed., 16 , 111, (1944)
[24] M. Shamsipur, F. Nasri, A. Taherpour, J. Incl. Phenom. Macrocycl. Chem., 78, 429, (2014).
[25] F.S. Nworie, J. Anal. Pharm. Res., 3, 76, (2016).
[26] G.H. Rounaghi, M.H. Zavvar, F. Boosaeedi, R.S. Khoshnood, J. Incl. Phenom. Macrocycl. Chem., 47, 101, (2003).
International Journal of New Chemistry
Volume 7, Issue 1
Winter 2020
Pages 1-13

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