Synthesis and Crystal Structre of Bipyridyl Comlexes of Praseodymium Nitrate and Chloride

Authors: Talib K. Ibrahim1 & Nabil N. Rammo2 & Kassam R. Hamid3
1Department of Environmental Engineering, College of Engineering, Knowledge University, Erbil, Iraq
2Department of Physics, College of Education Ibn Al-Haytham, University of Baghdad, Baghdad-Iraq
3Department of Physics, College of Education Ibn Al-Haytham, University of Baghdad, Baghdad-Iraq

Abstract: Crystal structures of Pr (NO3)3 (H2O)4. (C10H8N2)2H2O and Pr Cl3 (H2O)4. (C10H10N2)1.5 Cl3 were solved using x-ray diffraction technique. The nitrate complex was orthorhombic with space group P212121, whereas the chloride complex showed a monoclinic system with space group p21/c.
The Pr in the nitrate complex is 10-coordinate from three bidentate groups and four water molecules. The two independent bipyridyl molecules are lying on general positions and neither protonated nor coordinated to the central atom Pr. In the chloride complex, the Pr is 7-coordinate from three chlorides and four water molecules. The two bipyridyl molecules are uncoordinated to the central atom.

Keywords: Lanthanides, Crystal Structure, 4-Bipy, X-Ray Diffraction

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doi: 10.23918/eajse.v7i1p205


Al-Rasoul, K.T., Weakley, T.J.R. (1982). The crystal structure of 4, 4 bipyridinium(+1) tetranitratodiaquo(4,4bipyridyl)neodymiate(III). Inorg. Chim. Acta, 60,191-196.

Al-Rasoul, K.T., & Drew, M.G.B. (1987). Structure of tetraaquatrinitratoneodymium 4-4 bipyridyl-water (1/2/1). Acta Cryst. C43, 2081-2084.

Bukowska-Strzyzewska, M., & Tosik, A. (1978). The crystal and molecular Structure of 4-4 bipyridynium tetranitratodiaquo 4-4 bipyridyl Ceriate(III). Inorg. Chim. Acta, 30,189-196.

Bukowska-Strzyzewska, M., & Tosik, A. (1982). Structure of the 4, 4–bipyridyl clathrate of octaaquagadolinium (III) chloride,Acta Cryst., B38,265-267; Structure of the 4,4-bipyridyl clathrate of octaaqua yttrium(III). Chloride, Acta Cryst., B38,950-951.

Cromer, D.T., & Liberman, D. (1968). X-ray scattering factors computed from numerical Hartree-Fock wave functions. Acta Cryst., A24,321-324.

Farid, S.B.H. (1988). Crystal structure analysis of Lanthanide-Bipy Complexes, MSc.Thesis, University of Technology, Baghdad.

Holler, C.J., Mai, M., & Buschbaun, K.M. (2010).The interaction of rare earth chlorides with 4,4-bipyridine. Dalton Trans., 39,461-468.

Ibers, J.A., Hamilton,W.C. (1974). International Tables For X-Ray Crystallog.,Vol.IV, Kynochpress, Birmingham, England, pp.99,149.

Ibrahim, T.K., Rammo, N.N., & Hamid, K.R. (1993). Structural investigation of 4, 4-bipyridyl complexes with lanthanides. Eng. & Technology, 12(10), 76-88.

Ibrahim, T.K., Rammo, N.N., & Hamid, K.R. (1999). Eng &Technology, 18(5), 528-539.

Ibrahim, T.K., Rammo, N.N., & Farid, S.B.H. (2005). Crystal Structure Determination of 2-2 and 4-4 bipyridyl complexes with Neodymium (III) Nitrate. Iraqi J. of Science and Technology, 2(1), 112-123.

Johnson, C.K. (1965). ORTEP, Report ORNL-3794. OakRidge National Laboratory, TN.

Matthes, P.R. (2013). The series of rare earth complexes [Ln2Cl6(4,4-bipy) (py)6], Ln=y,Pr,Nd,Sm-Yb:A molecular model. Chemistry, 19(51), 17369-17378.

Matthes, P.R. (2015). Post-synthetic shaping of porosity and crystal structure of Ln-Bipy-MOF by thermal treatment. Molecules, 20, 12125-12153.

Matthes, P.R. (2012). Luminescence tunning of MOF via ligand to metal and metal to metal energy transfer by co-doping of [Gd2Cl6(bipy)3]2 bipy with europium and teribium. J. Mater. Chem., 22,10179-10187.

Rocha, J., Brites, C.D.S., & Carlos,L.D. (2016). Lanthanide organic framework luminescent thermometer. Chemistry, 22(42),14782-14795.

Rogers, R.D., & Henry, R.F. (1992). Structure of [PrCl3(EO4)]2. Acta Cryst., C48,1099-1101.

Weakley, T.J.R. (1982). The crystal structure of three adducts of lanthanide nitrates, water and 4-4 bipyridyl. Inorg.Chim. Acta, 63,161-168.

Weakley, T.J.R. (1984). The crystal structure of 4-4 bipyridinium(4-4 bipyridine)bis[diaquatetranitratoneodymate(III)]-tris(4-4 bipyridine) and a second monoclinic form of triaquatrinitratoholmium(III)-bis (4-4bipyridine). Inorg. Chim. Acta, 95,317-322.

Weakley, T.J.R. (1989). Tetraaquanitratopraseodymium 4-4 bipyridine Water(1/2/1). Acta Cryst., C45,525-526.