Volume 2015, Issue 1 121895
Research Article
Open Access

Synthesis, Characterization, and Structural Assessment of Ni(II) Complexes Derived from Bis(2-hydroxy-1-naphthaldehyde)succinoyldihydrazone

Mithun Chakrabarty

Corresponding Author

Mithun Chakrabarty

Department of Chemistry, University of Technology and Management, Shillong, Meghalaya 793003, India

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Aziz Ahmed

Aziz Ahmed

Department of Chemistry, Indian Institute of Technology Patna, Bihar 801103, India iitp.ac.in

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R. A. Lal

R. A. Lal

Department of Chemistry, North-Eastern Hill University, Shillong, Meghalaya 793022, India nehu.ac.in

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First published: 31 December 2015
Citations: 4
Academic Editor: Alfonso Castiñeiras

Abstract

The monometallic nickel(II) complexes [Ni(H2nsh)(A)2nH2O (where A = water (H2O), n = 0 (1); pyridine (py), n = 2 (2); 2-picoline(2-pic), n = 0 (3); 3-picoline(3-pic), n = 2 (4); and 4-picoline(4-pic), n = 0 (5)) and homobimetallic nickel(II) complexes [Ni2(nsh)(A)4nH2O (where A = water (H2O), n = 1 (6); pyridine (py), n = 4 (7); 2-picoline(2-pic), n = 4 (8); 3-picoline(3-pic), n = 4 (9); and 4-picoline(4-pic), n = 4 (10), resp.) have been synthesized in methanol from bis(2-hydroxy-1-naphthaldehyde)succinoyldihydrazone (H4nsh). The complexes have been characterized by elemental analyses, molar conductance, magnetic moment, and electronic and IR and TGA/DTA spectroscopic studies. The monometallic complexes (1) to (5) are found to have octahedral stereochemistry while complexes (6) to (10) are found to have distorted octahedral stereochemistry in which one of the Ni(II) centres is present in N2O2 coordination sphere and another Ni(II) centre is bonded to it through phenolate oxygen atoms via oxo-bridging.

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